Entries |
Document | Title | Date |
20080200615 | Thermoplastic Elastomer Composition - A thermoplastic elastomer composition comprising 5-95 weight % of an oil free elastomer, 95-5 weight % of a polyolefin composition comprising from 20 to 50 parts by weight of a crystalline polyolefinic polymer and 50 to 80 parts by weight of an elastomeric olefinic copolymer whereby the total parts by weight is 100. The thermoplastic elastomer composition may comprise 0.02-10 weight % of a cross linking agent optionally with co-agent whereby the total weight of (a), (b) and the cross linking agent is chosen from a peroxide, hydrosilane or phenolic resins. The present invention further relates to articles comprising the thermoplastic elastomer composition and to the use of the thermoplastic elastomer composition in food packaging, industrial application, consumer applications, medical applications, seals, auto interior parts and low fogging applications as for example airbags and dashboards. | 08-21-2008 |
20080207835 | Heterophasic Polymer Composition and Process for its Preparation - The invention relates to a heterophasic alpha-olefÊn random copolymer composition with a melting temperature (Tm) of at least 130° C. and a flexural modulus of not higher than 1000 MPa5 whereby the inventive composition comprises an al-pha-olefin random copolymer component (A) of at least two alpha-olefÊn (co)polymer fractions (i) and (ii) having a different comonomer content, whereby at least one of the fractions is an alpha-olefÊn random copolymer, and a rubber component (B). | 08-28-2008 |
20080207836 | Composition Suitable for High Gloss Blown Film and Films Made Therefrom - The invention is directed to a composition suitable for high gloss air quenched blown films. The films are comprised of from 2 to 15 percent by weight of a substantially isotactic propylene-based copolymer having a melt flow rate of at least 5 g/10 minutes and having from 8 to 21 mole percent units derived from an alpha olefin; and from 85 to 98 percent by weight of an ethylene-based copolymer having a melt index of from 0.1 to 9 g/10 minutes. An air quenched blown film made from the inventive composition exhibits a value for gloss greater than the value for gloss exhibited by an air quenched blown film made solely from the ethylene-based copolymer. | 08-28-2008 |
20080221273 | High-Density Polyethylene Compositions, Method of Making the Same, Articles Made Therefrom, and Method of Making Such Articles - The instant invention is a high-density polyethylene compositions, and method of making the same. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm | 09-11-2008 |
20080234435 | COMPOSITIONS OF ETHYLENE/ALPHA-OLEFIN MULTI-BLOCK INTERPOLYMER FOR ELASTIC FILMS AND LAMINATES - This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type resin. | 09-25-2008 |
20080249248 | Isotactic Polypropylene Nucleation - Low molecular weight semicrystalline propylene-alpha olefin copolymers containing propylene crystallinity are used as a nucleating agent in crystalline polypropylene and polypropylene copolymers. The nucleating copolymers are propylene-alpha olefin copolymers having a percent crystallinity of 5-75%, a melting point of 45° C.-105° C., and an MFR between 300 and 5000 g/10 min. Nucleated polypropylene compositions comprise a nucleating amount of the copolymer blended in a matrix of polypropylene homopolymer, or 0.01 to 9 wt % α-olefin copolymer, having a melting point greater than 110° C. The nucleating copolymer improves processing time with little or no effect on the crystallinity-associated characteristics of the matrix. The invention also provides methods of crystallizing polypropylene with the nucleating agent and of forming articles with the composition, and also provides articles formed from the composition and/or by the method. | 10-09-2008 |
20080249249 | Chlorosulfonated propylene/olefin elastomers - Chlorosulfonated propylene/olefin elastomers containing 0.5-55 weight percent chlorine and 0.15 to 5 weight percent sulfur are prepared from metallocene catalyzed propylene/olefin copolymer base resins having a ratio of Mw/Mn less than 3.5 and a copolymerized propylene content of 70-98 weight percent. | 10-09-2008 |
20080255311 | Propylene-Based Elastomeric Composition - The present invention includes a polyolefin elastomeric composition comprising a propylene-based elastomer having at least seventy five weight percent units derived from propylene, the propylene-based elastomer exhibiting a heat of fusion of from 1 to 35 Joules/gram, a weight average molecular weight of from 5400 to 875000 g/mol, and a permanent set of less than 40%; and a homogeneous ethylene-alpha olefin interpolymer having a molecular weight distribution of less than 3.5, a density from 0.885 to 0.915 g/ml, and a heat of fusion of from 65 to 125 Joules/gram, wherein the ratio of the propylene-based elastomer to the homogeneous ethylene-alpha olefin interpolymer is from 97:3 to 80:20, and wherein the composition exhibits a heat of fusion from 2 to 55 Joules/gram, and a 2% secant flexural modulus of less than 69 MPa. | 10-16-2008 |
20080269421 | Polyethylene Composition Having a Broad Molecular Weight Distribution - An ethylene polymer composition having a density of 935 to 950 kg/m | 10-30-2008 |
20080269422 | Polyethylene Composition with Improved Stress Crack Resistance/Stiffness Relation for Blow Moulding - The present invention relates to a polyethylene composition wherein (i) the composition has an MFR2 of 0.05 to 100 g/10 min, (ii) the environmental stress crack resistance ESCR measured according to the FNCT at 12 MPa and 23° C. in hours and the E-modulus EM measured according to ISO 527-2: 1993 satisfy the following relation: ESCR>−0.244 EM h/MPa+416 h (I). | 10-30-2008 |
20080275189 | Control of Polymer Architecture and Molecular Weight Distribution Via Multi-Centered Shuttling Agent - A process for the polymerization of one or more addition polymerizable monomers and the resulting polymer composition, said process comprising contacting an addition polymerizable monomer or mixture of monomers in a reactor or reactor zone with a composition comprising at least one polymerization catalyst and a cocatalyst under polymerization conditions, characterized in that at least a portion of said polymerization is conducted in the presence of a multi-centered shuttling agent thereby causing the composition to have a bimodal molecular weight distribution. | 11-06-2008 |
20080281048 | Heat resistant polypropylene film - A heat resistant film that comprises at least one layer that comprises a high crystallinity propylene polymer having a melt flow rate of from 0.5 g/10 min. to 15 g/10 min. and a xylene solubles of less than 3.5%. The propylene polymer may have a melting point above 158° C. The heat resistant film may further comprise at least a second layer, which may be a heterophasic random copolymer. The heat resistant film may be, for example, a blown film, a cast film, or an oriented film, and may be used in such articles of manufacture as construction films, retort packaging, and laminated articles. | 11-13-2008 |
20080287608 | Polyethylene Composition for Injection Moulded Transport Packaging Articles - The present invention relates to a polyethylene composition wherein
| 11-20-2008 |
20080306219 | PROPYLENE COPOLYMER, POLYPROPYLENE COMPOSITION AND USES THEREOF, TRANSITION METAL COMPOUND AND OLEFIN POLYMERIZATION CATALYST - An olefin polymerization catalyst having (A) a transition metal compound (2a) or (3a) and (B) at least one compound selected from (B-1) an organometallic compound, (B-2) an organoaluminum oxy compound and (B-3) a compound capable of forming an ion pair by reacting with the transition metal compound (A). | 12-11-2008 |
20080312380 | Bimodal polyethylene compositions for blow molding appplications - A bimodal polyethylene composition that includes ethylene-derived units, and, optionally, one or more other olefin-derived units, wherein the bimodal polyethylene composition possesses a density of at least 0.940 g/cc, an average molecular weight (Mw) of from 200,000 to 370,000, a z-average molecular weight (Mz) of from 1,500,000 to 3,400,000 Daltons, and a z+1 average molecular weight (Mz+1) of from 2,500,000 to 6,800,000 Daltons, is provided in various embodiments. Articles made therefrom and methods of making the same are also provided. | 12-18-2008 |
20080319135 | 1-Butene Polymers Composition - A 1-butene polymer composition comprising:
| 12-25-2008 |
20080319136 | Propylene-Ethylene Block Copolymer and Molded Article Thereof - A propylene-ethylene block copolymer comprising from 60 to 85% by weight of a polypropylene portion and from 15 to 40% by weight of a propylene-ethylene random copolymer portion and satisfying the requirements (1) and (2) defined below is provided. In addition, a molded article containing such a propylene-ethylene block copolymer is provided. | 12-25-2008 |
20090012238 | RESIN COMPOSITION, TRANSPARENT FILM OR SHEET HAVING ELASTICITY RECOVERING PROPERTY, AND WRAP FILM - The present invention provides a propylene-ethylene copolymer which is excellent in a balance between a heat resistance and an elasticity recovering property and has a good transparency and which is improved in peel whitening brought about by mutual adhesion in storing specific to soft materials, a resin composition for a transparent elasticity recovering film or sheet comprising the above copolymer, a transparent elasticity recovering film or sheet and a wrap film. | 01-08-2009 |
20090012239 | Process for Producing Thermoformed Articles - A process for obtaining thermoformed articles, comprising the following steps: a) forming a sheet comprising a propylene resin; b) thermoforming the sheet obtained in step a); wherein said propylene resin has the following characteristics: a) distribution of molecular weight Mw/Mn lower than 4; preferably lower than 3; b) 2.1 insertions measured with by 13C-NMR lower than 0.50%; preferably lower than 0.40%; c) eta* and the frequency ω meet the following relation for ω comprised between 0.1 and 1: eta*>3700ω(−0 13) d) melt flow rate (MFR) (ISO 1133) lower than 5; preferably lower than 4; more preferably lower than 3; wherein the polypropylene resin comprises: (i) from 10 to 100% by weight of a propylene homopolymer or a propylene copolymer containing from 0.1% to 10% by mol of derived units of ethylene or an alpha-olefin of formula CH2═CHZ wherein Z is a linear or branched C2-C20 radical; and (ii) from 0 to 90% by weight of a propylene copolymer containing from 0.1% to 10% by mol of derived units of ethylene or an alpha-olefin of formula CH2═CHZ wherein Z is a linear or branched C2-C20 radical, said propylene copolymer having a content of ethylene or an alpha-olefin of formula CH2═CHZ different from the propylene copolymer (i). | 01-08-2009 |
20090036610 | Enhanced ESCR Bimodal HDPE for blow molding applications - Bimodal polyethylene compositions and blow molded bottles made therefrom are provided. In at least one specific embodiment, the composition includes at least one high molecular weight polyethylene component having a molecular weight distribution (MWD) of about 6 to about 9, a short chain branch content of less than about 2 branches per 1,000 main chain carbons, and a Mz of about 1,100,000 or more. The composition also includes at least one low molecular weight polyethylene component where a ratio of weight average molecular weight of the high molecular weight polyethylene component to weight average molecular weight of the low molecular weight polyethylene component is about 20 or less. The polyethylene composition has a density of about 0.94 g/cc or more, an ESCR of about 600 hours or more, a percent die swell of about 70% or more, and may comprise at least 70% ethylene-derived units. | 02-05-2009 |
20090043049 | Plasticized Polyolefin Compositions - The present invention relates to a polyolefin composition that includes 60 to 99 wt % of one or more polyolefin polymers and 1 to 40 wt % of a regularly branched PAO (“rbPAO”) based on the total weight of the polyolefin polymer(s) and the rbPAO, wherein the rbPAO includes oligomers of one or more C | 02-12-2009 |
20090043050 | PROPYLENE COPOLYMER, POLYPROPYLENE COMPOSITION AND USES THEREOF, TRANSITION METAL COMPOUND AND OLEFIN POLYMERIZATION CATALYST - A polypropylene composition containing a propylene/1-butene random copolymer which contains 60 to 90 mol % of propylene units and 10 to 40 mol % of 1-butene units and has a triad isotacticity of not less than 85% and not more than 97.5%, a molecular weight distribution of from 1 to 3, an intrinsic viscosity of from 0.1 to 12 dl/g, a melting point of from 40 to 75° C. and a crystallization rate at 45° C. of 10 minutes or less, and satisfying the following relation, 146 exp (−0.022M)≧Tm≧125 exp (−0.032M), and an olefin catalyst for preparation thereof. | 02-12-2009 |
20090048402 | Preparing multimodal polyethylene having controlled long chain branching distribution - A process to prepare a multimodal polyethylene with controlled LCB distribution is disclosed. In the first stage, ethylene is polymerized in the presence of a Ziegler catalyst that results in a homopolyethylene component having a higher LCB concentration. In the second stage, ethylene is copolymerized with a 1-olefin in the presence of the Ziegler catalyst and a lower concentration of hydrogen resulting in a copolymer component with a lower LCB concentration. The homopolyethylene component and the copolymer component are combined to form a novel multimodal polyethylene. | 02-19-2009 |
20090048403 | Compositions Obtained From Recycled Polyolefins - Polyolefin compositions comprising, by weight: A) 30-80% of a polyolefin component containing not less than 80% of a waste material selected from polyethylene, polypropylene or their mixtures; B) 20-70% of a heterophasic polyolefin composition having flexural modulus equal to or lower than 600 MPa. | 02-19-2009 |
20090048404 | POLYPROPYLENE RESIN COMPOSITION AND ORIENTED FILM THEREOF - A polypropylene resin composition comprising a propylene polymer obtained by, in a first stage, polymerizing monomers mainly containing propylene to produce a crystalline propylene polymer component (A) having an intrinsic viscosity of not less than 3.0 dl/g and less than 5.0 dl/g, and, in a stage after the first stage, polymerizing monomers mainly containing propylene to produce a crystalline propylene polymer component (B) having an intrinsic viscosity of not less than 1.5 dl/g and less than 2.5 dl/g, wherein the content of the crystalline propylene polymer component (A) in the propylene polymer is not less than 1% by weight and less than 10% by weight, the polypropylene resin composition having a melt flow rate, as measured at a temperature of 230° C. and under a load of 21.18 N, of not less than 1.0 g/10 min and less than 10 g/10 min. | 02-19-2009 |
20090088530 | NOVEL POLYMER COMPOUND AND USES THEREOF - The present invention is related to novel polyolefin polymer compositions and methods of use thereof, in particular use in passenger and driver airbag cover applications for vehicles, wherein airbag covers are required to perform at extreme temperatures with no failures, brittle or ductile fractures. The polyolefin polymer includes: a first component having at least one polypropylene copolymer or homo propylene polymer present in the range of up to about 70% by weight of the polymer composition; a second component having at least one ethylene/octene copolymer present in the range of up to about 85% by weight of the polymer composition; and optionally, a third component having at least one metallocene elastomer comprising ethylene and a co-monomer. A method of forming an airbag cover from the polyolefin polymer is also described. | 04-02-2009 |
20090099315 | Polyethylene Composition Suitable for the Preparation of Films and Process for Preparing the Same - A polyethylene composition, in particular suitable for the preparation of films, and a process for preparing the same are described. The polyethylene composition of the invention comprises from 50 to 89% by weight of a first polyethylene component comprising at least one multimodal polyethylene including a plurality of ethylene polymer fractions having distinct molecular weights and comonomer contents, at least one of said plurality of ethylene polymer fractions being prepared by the use of a single site catalyst, and from 50 to 11% by weight of a second polyethylene component comprising a low or medium density polyethylene. | 04-16-2009 |
20090099316 | Preparation of multimodal polyethylene - Disclosed is a polyethylene composition. The composition comprises single-site multimodal resin A and single-site multimodal resin B, wherein resin A differs from resin B in molecular weight, in monomeric composition, in density, in long chain branch concentration or distribution, or in combinations thereof. Disclosed is also a method for making the polyethylene composition. The method comprises polymerizing, in the presence of two or more single-site catalysts, ethylene or its mixture with a C | 04-16-2009 |
20090105422 | Multimodal polyethylene molding composition for producing pipes having improved mechanical properties - A polyethylene molding composition having a multimodal molecular mass distribution and comprising from 45 to 55% by weight of a low molecular weight ethylene homopolymer A, from 20 to 40% by weight of a high molecular weight copolymer B comprising ethylene and another olefin having from 4 to 8 carbon atoms and from 15 to 30% by weight of an ultrahigh molecular weight ethylene copolymer C can be prepared in the presence of a Ziegler catalyst in a three-stage process and is highly suitable for producing pipes having excellent mechanical properties. | 04-23-2009 |
20090111946 | Soft Heterogeneous Isotactic Polypropylene Compositions - Provided are heterogeneous blend compositions comprising; a) from 1% to 99% by weight of the blend of a first polymer component comprising a copolymer of 5% to 35% by weight of the first polymer component consisting predominantly of alpha olefin derived units and 65% to 95% by weight of the first polymer component of propylene derived units having a crystallinity of 0.1% to about 25% from isotactic polypropylene sequences, a melting point of from 45° C. to 105° C., and wherein the Melt Flow Rate (MFR@230 C) of the first polymer component is between 300 g/10 min to 5000 g/10 min b) from 1% to 99% by weight of the blend of a second polymer component comprising isotactic polypropylene and random copolymers of isotactic propylene, wherein the percentage of the copolymerized alpha-olefin in the copolymer is between 0.0% and 9% by weight of the second polymer component and wherein the second polymer component has a melting point greater than about 110° C., wherein the first polymer component has less than 1000 ppm of reaction products arising from the chemical reaction of a molecular degradation agent. The provided compositions are useful in high temperature applications. | 04-30-2009 |
20090118430 | Polystyrene Blends and a Method of Making Same - Disclosed are blends of polystyrene and at least one of syndiotactic polypropylene, ethylene propylene copolymers, and styrene-butadiene-styrene triblock copolymers. These blends are prepared using solution polymerization and have unique morphologies and desirable physical properties. The blends can also be prepared with graft-promoting or crosslinking agents and rubbers to prepare modified high impact polystyrene. | 05-07-2009 |
20090131594 | POLYPROPYLENE COMPOSITION WITH SELECTIVE CROSS-LINKABLE DISPERSED PHASE - The present invention provides a heterophasic polypropylene composition comprising a selective cross-linkable dispersed phase, a method for the production thereof, and their use in different applications. The cross-linkable reaction can be carried out at a temperature of 10 to 40° C. under a humidity of below 85% and with cross-linking degree of at least 30%. | 05-21-2009 |
20090143536 | Fibers and Nonwovens Comprising Polypropylene Blends and Mixtures - Fibers and nonwoven materials comprising polymeric blends and polymeric mixtures that incorporate a blend of a first metallocene polypropylene and a second polypropylene are described. The first and second polypropylenes have a predetermined relationship for the melt temperature and the melt flow rate of the individual polypropylenes. Also described are fibers (including bicomponent fibers) and nonwoven materials made from the fibers where the fibers are extruded using the polymeric blends, and/or the polymeric mixtures. | 06-04-2009 |
20090149605 | Heterophasic propylene based polymers for forming fiber - Fibers and articles formed therefrom are described herein. The fibers generally include a first polymer including a first propylene based impact copolymer and a second propylene based polymer. | 06-11-2009 |
20090149606 | DEGRADABLE PLASTIC COMPOSITION AND METHODS - A degradable plastic product is produced from a polymer blend composition which includes a thermoplastic polymer and a photo-oxidative degrading additive. The photo-oxidative degrading additive includes a photoactive degradant and an oxidation catalyzing additive. | 06-11-2009 |
20090156749 | Polyethylene Blend Component and Blends Containing the Same - According to one aspect, the present invention relates to a low-density polyethylene having a melt index MFR | 06-18-2009 |
20090163667 | CATALYTIC OLEFIN BLOCK COPOLYMERS VIA POLYMERIZABLE SHUTTLING AGENT - A polymerization process and the resulting polymer composition, said process comprising polymerizing one or more addition polymerizable monomers and a polymerizable shuttling agent in the presence of at least one addition polymerization catalyst comprising a metal compound or complex and a cocatalyst under conditions characterized by the formation of a branched polymer, preferably comprising pseudo-block molecular architecture. | 06-25-2009 |
20090171030 | POLYPROPYLENE-BASED COPOLYMER AND FILM COMPRISING THE POLYPROPYLENE-BASED COPOLYMER - A polypropylene-based copolymer containing 50 to 95% by weight of a polymer component (component A) mainly comprising the constitutional unit derived from propylene and having a melting point exceeding 155° C. and 5 to 50% by weight of a copolymer component (component B) of propylene, ethylene and an α-olefin having 4 or more carbon atoms in which the content (X) of the constitutional unit derived from propylene is 10≦X<50% by weight, the content (Y) of the constitutional unit derived from ethylene is 5007-02-2009 | |
20090192270 | Ethylene-Based Polymers And Articles Made Therefrom - Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include blends of a linear low density polyethylene prepared with metallocene catalyst and a low density polyethylene. The linear low density polyethylene may optionally have about five mole percent or less of monomer units derived from an alpha-olefin comonomer. Articles composed of such ethylene-based polymer compositions, such as blown films, exhibit favorable physical properties, including excellent optical properties and retained strength i.e., mitigation of expected decline in physical strength due to LDPE addition. | 07-30-2009 |
20090198018 | MULTIMODAL POLYETHYLENE COMPOSITION WITH IMPROVED HOMOGENEITY - The present invention in a first embodiment concerns a multimodal, preferably bimodal, polyethylene composition comprising a base resin which comprises (A) a first ethylene homo- or copolymer fraction, and (B) a second ethylene homo- or copolymer fraction, wherein fraction (A) has a lower molecular weight than fraction (B), the ratio of the MFR | 08-06-2009 |
20090198019 | Screw cap composition - A screw cap is disclosed comprising a composition based on a multimodal ethylene polymer having a standard density (SD) greater than 950 kg/m | 08-06-2009 |
20090203848 | MULTIMODAL POLYETHYLENE COMPOSITION FOR PIPES - The present invention relates to a multimodal polyethylene composition for pipes which comprises polyethylene composition comprising a base resin which comprises (A) an ethylene homo- or copolymer fraction, and (B) an ethylene copolymer fraction comprising at least one alphaolefin comonomer having at least 4 carbon atoms, wherein (i) fraction (A) has a lower average molecular weight than fraction (B), and (ii) the comonomer content and the density d of the base resin satisfy the following relation: comonomer [mol %]>−0.0612 d [kg/m | 08-13-2009 |
20090209706 | High Melt Flow Propylene Impact Copolymer and Method - The present disclosure provides a polymerization process for the production of a high melt flow propylene impact copolymer. The process includes contacting an active propylene-based polymer having a melt flow rate greater than about 100 g/10 min with one or more olefins in a polymerization reactor to form the propylene impact copolymer with a melt flow rate greater than about 60 g/10 min. The production of the high melt flow propylene impact copolymer may occur in one or more polymerization reactors, utilizing standard hydrogen concentration, and no visbreaking. | 08-20-2009 |
20090234076 | PROPYLENE-BASED BLOCK COPOLYMER PARTICLES - Propylene-based block copolymer particles in accordance with the present invention are obtained by copolymerizing ethylene and propylene to form an ethylene-propylene copolymer in the presence of propylene polymer particles. The ratio of the intrinsic viscosity η | 09-17-2009 |
20090253868 | Polyolefinic compositions having good whitening resistance - A polypropylene composition comprising 65-77 wt % of a crystalline propylene polymer, 8 to less than 13 wt % of an elastomeric copolymer and 10-23 wt % of polyethylene. The said composition exhibits a flexural modulus value higher than 1300 MPa, stress-whitening resistance values corresponding to a diameter of the whitened area of at most 1.7 cm caused by a ram falling from a 76 cm height and a diameter of the whitened area of at most 1.2 cm caused by a ram falling from a 20 cm height, and a value of Izod impact resistance at 23° C. more than 14 kJ/m2 and the one at −20° C. at least 5 kJ/m2. | 10-08-2009 |
20090258995 | HIGH DENSITY POLYETHYLENE AND ARTICLES MADE THEREFROM - Articles such as, for example, pipes or bottles, prepared from multimodal polyethylenes possessing a density from 0.940 to 0.965 g/cm | 10-15-2009 |
20090270560 | Propylene-Ethylene Copolymers and Process for Their Preparation - Propylene-ethylene copolymers are flexible and show a very good balance between softness and mechanical properties in their crude state are obtained by solution polymerization in the presence of Ziegler-Natta catalysts. The said copolymers comprise from 10 to 50% wt of ethylene and are characterized by: product of the comonomer reactivity ratio r1·r2≦1.5; absence of 2,1 propylene insertions and tensile strength at break higher than 4 Mpa. | 10-29-2009 |
20090270561 | THERMOPLASTIC ELASTOMER COMPOSITION, A METHOD FOR PRODUCING A MOLDED BODY, AND A MOLDED BODY - A thermoplastic elastomer is provided that includes a propylene-based resin and an ethylene-α-olefin copolymer rubber, and has a crystallization time at 130° C. measured by differential scanning calorimeter (DSC) of from 250 to 1,000 sec. There are also provided a method for producing a molded body, the method including a step of preparing the thermoplastic elastomer composition and a step of injection molding the thermoplastic elastomer composition, and a molded body produced by the method. | 10-29-2009 |
20090292076 | POLYPROPYLENE-BASED RESIN COMPOSITION AND FILM - A polypropylene-based resin composition comprising 61 to 85% by weight of a copolymer (X) of propylene, α-olefin having 4 or more of carbon atoms and/or ethylene, in which a content of a constitutional unit derived from propylene is 86 to 97% by weight, a total of a content of a constitutional unit derived from ethylene and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 3 to 14% by weight, provided that a total of the content of a constitutional unit derived from propylene, the content of a constitutional unit derived from ethylene and the content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is defined to be 100% by weight, 1 to 38% by weight of a copolymer (Y) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is 115° C. or more, and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 10 to 30% by weight, and 1 to 38% by weight of a copolymer (Z) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is less than 115° C., and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 30 to 40% by weight, wherein a total of the copolymer (X), the copolymer (Y) and the copolymer (Z) is defined to be 100% by weight. | 11-26-2009 |
20090292077 | POLYPROPYLENE-BASED RESIN COMPOSITION AND FILM - A polypropylene-based resin composition comprising 86 to 98% by weight of a copolymer (X) of propylene, α-olefin having 4 or more of carbon atoms and/or ethylene, in which a content of a constitutional unit derived from propylene is 86 to 97% by weight, a total of a content of a constitutional unit derived from ethylene and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 3 to 14% by weight, provided that a total of the content of a constitutional unit derived from propylene, the content of a constitutional unit derived from ethylene and the content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is defined to be 100% by weight, 1 to 13% by weight of a copolymer (Y) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is 115° C. or more, and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 10 to 30% by weight, and 1 to 13% by weight of a copolymer (Z) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is less than 115° C., and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 30 to 40% by weight,.wherein a total of the copolymer (X), the copolymer (Y) and the copolymer (Z) is defined to be 100% by weight. | 11-26-2009 |
20090306298 | Propylene polymer composition for thermoforming - A propylene polymer composition comprising (weight percentages being referred to the sum of A+B): A propylene polymer composition comprising (weight percentages being referred to the sum of A+B): (A) 60-90% by weight of a copolymer of propylene with ethylene containing less than 2.5% wt of ethylene units; and (B) 10-40% by weight of a copolymer of propylene comprising from 15 to 35% wt of ethylene units, said polymer composition having a melt flow rate value according to ISO 1133 (230° C., 2.16 Kg) of less than 10 g/10 min. | 12-10-2009 |
20090306299 | Multimodal polyethylene composition, mixed catalyst and process for preparing the composition - A multimodal polyethylene composition, in particular suitable for the preparation of films, but also textile articles, blow molded articles and injection molded articles is described. The polyethylene composition of the invention comprises at least three ethylene polymer fractions having distinct molecular weights or comonomer contents, said at least three ethylene polymer fractions comprising at least one first ethylene polymer fraction having a first molecular weight, a first comonomer content lower than a predetermined value and a first density; at least one second ethylene polymer fraction having a second molecular weight higher than said first molecular weight, a second comonomer content higher than said first comonomer content, and a second density; and at least one third ethylene polymer fraction having a third molecular weight higher than said first molecular weight, a third comonomer content lower than a predetermined value, and a third density; wherein said at least one first ethylene polymer fraction and said at least third ethylene polymer fraction are prepared by the use of a first and, respectively, third catalyst and said at least one second ethylene polymer fraction is prepared by the use of a second catalyst of the single site type. The films prepared from the composition of the invention have improved water vapor barrier properties. Furthermore, a mixed catalyst system comprising at least three catalyst components and a process particularly suitable to prepare the composition of the invention are described. | 12-10-2009 |
20090306300 | Cell Made of Polymers for Spectra Measurement and Method for Producing the Same - This invention provides a cell made of polymers for spectra measurement while inhibiting a decrease in a molecular weight of resin caused by discharge treatment and having a stable hydrophilic modified surface. The hydrophilic resin cell is prepared by providing a polymeric resin cell between the two opposing electrodes, applying an electric field to a region between the above opposing electrodes under a nitrogen atmosphere with a pressure close to the atmospheric pressure to generate an electric discharge, and exposing the cell subjected to discharge treatment with a gas including oxygen. | 12-10-2009 |
20090312497 | GEL SHEET FOR PROTECTING SKIN - It is intended to provide a very inexpensive and heavy-duty gel sheet for protecting the skin to be used for the prevention of pressure ulcer caused by skin therapy and congestion or the like not by applying it to a wounded region or cut but by applying it to a region of pressure ulcer, keloid, hypertrophic scar or the like caused by congestion or the like. It was expected that even though its composition was not silicone, if it was a substance having properties similar to those of silicone, i.e. a moisturizing property, pressure exerted by adhesion and the like, a gel sheet for protecting the skin which is less expensive and more heavy-duty than a conventional silicone gel sheet could be produced. As a result of intensive studies, a gel sheet for protecting the skin which is less expensive and more heavy-duty than a conventional silicone gel sheet was successfully produced. Here, the gel sheet for protecting the skin is produced by copolymerizing polyethylene and polystyrene. | 12-17-2009 |
20090318621 | POLYPROPYLENE COMPOSITION WITH LOW SURFACE ENERGY - Polypropylene composition comprising a) an isotactic polypropylene (iPP) produced in the presence of a single-site catalyst and said isotactic polypropylene (iPP) has a mean isotactic block length between two structural chain defects, as a statistical average, greater than 70, and b) an atactic polypropylene (aPP) with an absorbance ratio of the absorption band at 998 cm | 12-24-2009 |
20090326156 | BUTENE-1 COPOLYMERS - butene-1 copolymers containing:
| 12-31-2009 |
20090326157 | ETHYLENE-PROPYLENE COPOLYMER, AND POLYPROPYLENE RESIN COMPOSITION COMPRISING THE SAME - There are provided an ethylene-propylene copolymer having the following structural characteristics, and a polypropylene resin composition comprising the above copolymer and polypropylene having a melting temperature of 160° C. or higher:
| 12-31-2009 |
20100004401 | Polyolefin composition - [Problem] A polyolefin composition comprising an olefin-based thermoplastic elastomer which is superior to conventional olefin-based thermoplastic elastomers in scratch resistance and abrasion resistance and has excellent heat aging resistance is proposed. | 01-07-2010 |
20100010163 | Polyethylene Molding Composition for Producing Injection-Molded Finished Parts - The invention relates to a polyethylene molding composition which has a multimodal molecular mass distribution and comprises a low molecular weight ethylene homopolymer A, a high molecular weight ethylene copolymer B and an ultrahigh molecular weight ethylene copolymer C. The molding composition has a density at a temperature of 23° C. in the range from 0.940 to 0.957 g/cm | 01-14-2010 |
20100016510 | HIGH MELT FLOW HETEROPHASIC POLYPROPYLENE COPOLYMERS - The present invention relates to a heterophasic polypropylene composition with a high melt flow rate for processability, a good stiffness and an improved compression performance. These compositions may be employed for the production of moulded articles, in particular injection moulded articles such as thin-walled plastic cups. Furthermore, the invention relates to a process for preparing the inventive polymer compositions. | 01-21-2010 |
20100036058 | PROPYLENE BLOCK COPOLYMER - A propylene block copolymer comprising 60 to 85% by weight of a propylene polymer component and 15 to 40% by weight of an ethylene-propylene copolymer component, and satisfying the following requirements (I) to (V): (I) the above propylene polymer component has a melting temperature of 160° C. or higher measured according to DSC; (II) the above ethylene-propylene copolymer component has an ethylene content of 40 to 60% by weight measured according to a | 02-11-2010 |
20100048822 | POLYPROPYLENE RESIN COMPOSITION - There are provided a polypropylene resin composition and a molded article thereof, the composition comprising:
| 02-25-2010 |
20100048823 | Process for cross-linking thermoplastic polyolefin elastomer compositions - A process for cross-linking an elastomer-containing thermoplastic polyolefin composition comprising the steps of preparing a masterbatch by mixing and/or masticating an elastomeric polyolefin with a cross-linking co-agent, and optionally an additive, in the presence of a thermoplastic polyolefin; then, cooling the masterbatch obtained in the preceding step at least up to the solidification of the thermoplastic polyolefin; and finally mixing and/or masticating the masterbatch, after the cooling step, with a cross-linking agent and optionally an additive. | 02-25-2010 |
20100056727 | POLYOLEFIN COMPOSITIONS, ARTICLES MADE THEREFROM AND METHODS FOR PREPARING THE SAME - The invention provides compositions for blow molding applications and other applications, where such compositions comprise a high density ethylene polymer and a high molecular weight ethylene polymer. In these compositions, the high density ethylene polymer has a density greater than the density of the high molecular weight ethylene polymer, and the high molecular weight ethylene polymer has a weight average molecular weight greater than the weight average molecular weight of the high density ethylene polymer, and in addition, the high density ethylene polymer has a density from 0.94 g/cm | 03-04-2010 |
20100056728 | Polyethylene pipe fitting resins - A polyethylene resin suitable for formation into pipes or pipe fittings is disclosed, having an MI5 of from 0.40 to 0.70 g/10 min, and comprising from 47 to 52 wt % of a low molecular weight polyethylene friction, and from 48 to 53 wt % of a high molecular weight polyethylene fraction, wherein the high molecular weight polyethylene reaction comprises a copolymer of ethylene and | 03-04-2010 |
20100063212 | USE OF POLYPROPYLENE HAVING CHAIN BRANCHING TO BROADEN THE PROCESSING WINDOW IN THE INJECTION STRETCH BLOW MOLDING - Use of polypropylene having long chain branching to broaden the processing window in the injection stretch blow moulding of at least one propylene polymer. | 03-11-2010 |
20100063213 | GEL-PROCESSED POLYOLEFIN COMPOSITIONS - Semicrystalline polyolefins with narrow molecular weight distributions characterized by a low polydispersity index (PDI) and selected from the families of homopolymers, statistical copolymers, block copolymers, and graft copolymers, can be blended with a low molecular weight fluid diluent to create gel fiber and film compositions. These gel compositions, when subjected to mechanical or thermomechanical processing, either before or after removal of the diluent, result in fiber or film compositions that combine high tensile strength with other desirable physical properties, such as high rigidity, large extension at break, and/or high recoverable elasticity. These desirable combinations of properties are superior to those obtained from gel-processed semicrystalline polyolefins that are substantially similar in composition and molecular weight, but that have large PDIs. | 03-11-2010 |
20100069574 | ETHYLENE/ALPHA-OLEFINS BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of ethylene/α-olefin block interpolymers. The ethylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 03-18-2010 |
20100093939 | Improved Transparent Polypropylene Composition - The present invention relates to a composition, in particular to a polypropylene composition, and articles thereof, having an optimal balance between mechanical properties and transparency and thus the composition is particular suitable for packaging applications. | 04-15-2010 |
20100093940 | POLYOLEFIN COMPOSITIONS HAVING LOW HARDNESS AND LOW GLOSS - A polyolefin composition comprising, in percent by weight: A) 20-35% of a propylene homopolymer or copolymer with up to 8% of comonomer(s); B) 65-80% of a copolymer of ethylene and (i) propylene or (ii) CH | 04-15-2010 |
20100093941 | PROPYLENE-BASED POLYMER, PROPYLENE-BASED POLYMER COMPOSITION, PELLET AND PRESSURE-SENSITIVE ADHESIVE - Propylene-based polymers (A) are provided which, when used as pressure-sensitive adhesives to various adherends, show a desired initial adhesion and will not contaminate the adherends and which have excellent pellet handling properties. Pellets of the invention contain the propylene-based polymers (A). Pressure-sensitive adhesives of the invention contain the propylene-based polymers (A). The propylene-based polymer (A) includes 65 to 80 mol % of a structural unit derived from propylene, 5 to 10 mol % of a structural unit derived from ethylene and 15 to 25 mol % of a structural unit derived from a C4-20 α-olefin (wherein these percentages are calculated based on 100 mol % of the total of the structural unit derived from propylene, the structural unit derived from ethylene and the structural unit derived from a C4-20 α-olefin) and has a heat of crystal fusion of 5 to 45 (J/g) as measured by DSC. Compositions of the invention contain the propylene-based polymers (A). | 04-15-2010 |
20100093942 | FUNCTIONALIZED OLEFIN POLYMERS, COMPOSITIONS AND ARTICLES PREPARED THEREFROM, AND METHOD OF MAKING THE SAME - In one aspect the invention provides a melt process for preparing a functionalized olefin multiblock interpolymer, said process comprising grafting onto the backbone of the olefin multiblock interpolymer at least one compound comprising at least one “amine-reactive” group to form a grafted olefin multiblock interpolymer, and reacting a primary-secondary diamine or an alkanolamine with the grafted olefin multiblock interpolymer, without the isolation of the grafted olefin multiblock interpolymer. | 04-15-2010 |
20100099824 | MULTIMODAL MEDIUM DENSITY POLYETHYLENE POLYMER COMPOSITION - A multimodal medium density polyethylene polymer obtainable using single site catalysis which comprises at least:
| 04-22-2010 |
20100099825 | Hybrid catalyst composition for polymerization of olefins - The present invention relates to a new hybrid catalyst system for the polymerization of olefins and to a polymerization process carried out in the presence of said catalyst. The new hybrid catalyst system comprises a tridendate iron compound and a zirconocene having a bridge of at least three carbon atoms connecting two indenyl ligands. | 04-22-2010 |
20100130691 | SOFT PROPYLENE POLYMER COMPOSITIONS - A propylene polymer composition having a Flexural modulus lower than 500 MPa, a total ethylene content from 9 to 30% by weight, a xylene soluble fraction at room temperature higher than 25% by weight, a melting temperature measured by DSC (Tm° C.) from 130 to 150° C. and a ratio between the weight of xylene soluble fraction at 25° C. and the hexane soluble fraction determined on plaque (100 μm) of higher than 4. | 05-27-2010 |
20100130692 | ETHYLENE-BASED POLYMER COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM - The invention provides a composition, comprising at least one high molecular weight ethylene-based interpolymer, and at least one low molecular weight ethylene-based interpolymer, and where the high molecular weight ethylene-based interpolymer has a density less than, or equal to, 0.960 g/cc, and a melt index (I5) less than, or equal to, 1.0 g/10 min; and where the low molecular weight ethylene-based interpolymer has a density less than, or equal to, 0.915 g/cc, and a melt index (I2) greater than, or equal to, 0.4 g/10 min. | 05-27-2010 |
20100137521 | Thermoplastic Polymer Compositions, Methods for Making the Same, and Articles Made Therefrom - Provided are thermoplastic polymer compositions having a single melting point, articles made therefrom, and methods for elevating the melting point of low melting point polymers. Thermoplastic polymer compositions are composed of one or more high melting point polyolefins and a thermoplastic component that includes a low melting point polypropylene. High melting point polyolefins are composed of a stereoregular polypropylene having a tacticity similar to the low melting point polypropylene. The low melting point polypropylene includes, for example, propylene homopolymers and copolymers composed of propylene and one or more comonomers. Thermoplastic polymer compositions may also optionally contain any of the various additives commonly used in such polymer compositions, such as for example oils, etc. In one embodiment, thermoplastic polymer compositions are thermoplastic elastomer compositions that include an elastomeric component composed of an elastomer or rubber. The elastomeric component may be substantially or partially crosslinked to form a thermoplastic vulcanizate. | 06-03-2010 |
20100137522 | Bearing material of medical implant and methods for making it - Disclosed is a bearing material of a medical implant, which is an ultrahigh molecular weight polyethylene (UHMWPE) composite. The composite comprises, for example, UHMWPE and a polyethylene copolymer having a polymer backbone and pendant hydrophilic groups or pendant surface active agents that are attached to the polymer backbone. Also disclosed are methods for preparing bearing materials. The bearing material has one or more advantageous properties including reduced immune response, reduced wear, and/or increased lubrication. | 06-03-2010 |
20100144974 | POLYPROPYLENE-BASED COPOLYMER AND FILM COMPRISING THE POLYPROPYLENE-BASED COPOLYMER - A polypropylene-based copolymer containing 50 to 95% by weight of a polymer component comprising 95% by weight or more of the constitutional unit derived from propylene and having a melting point exceeding 155° C. (component A) and 5 to 50% by weight of a copolymer component of propylene, ethylene and an α-olefin having 4 or more carbon atoms (component B) in which the content of the constitutional unit derived from propylene (X) is 10% by weight≦X<50% by weight, the content of the constitutional unit derived from ethylene (Y) is 50% by weight06-10-2010 | |
20100144975 | Polypropylene Resin Composition With Good Transparence And Good Impact Strength - Provided is a polypropylene resin composition having excellent impact resistance, impact strength at low temperature and transparence comprising ethylene-alpha olefin copolymer (c) to a polypropylene resin composition in which the ratio of viscosity is regulated by adjusting molecular weight of propylene-alpha olefin random copolymer (a) and propylene-alpha olefin elastic copolymer (b), thereby regulating impact resistance and flexural modulus of the polypropylene resin composition and improving transparence; therefore, applying as various products including cold-storage containers for freezer and refrigerator, food packaging container, extrusion blow molding material, film, sheet and bottle cap, etc. | 06-10-2010 |
20100152390 | Heterogeneous In-Reactor Polymer Blends - An in-reactor polymer blend comprises (a) a propylene-containing first polymer; and (b) an ethylene-containing second polymer such that the polymer blend comprises between about 50 wt % and about 80 wt % units derived from ethylene and between about 50 wt % and about 20 wt % units derived from propylene. The blend is substantially free of dienes and the content of ethylene in the second polymer in the form of ethylene-ethylene-ethylene triads is at least 40%. The second polymer contains at least 0.1 branch having 8 or more carbon atoms per 10,000 carbons. In addition, the blend has a strain hardening index of at least 1.8, a shear thinning slope in the plot of log(dynamic viscosity) versus log(frequency) of less than −0.2 and exhibits at least two peaks when subjected to Differential Scanning Calorimetry (first melt) corresponding to a first melting point of at least 150° C. and a second melting point of at least 40° C. such that the difference between the first and second melting temperatures is at least 20° C. | 06-17-2010 |
20100152391 | NOVEL POLYOLEFIN COMPOSITIONS AND DRAWN TAPES, FIBRES AND FILAMENTS PRODUCED THEREFROM - The invention relates to a novel polyolefin composition which is suitable for producing drawn tapes, fibres and filaments which have improved mechanical properties. The composition comprises A) 2 30 wt % of a propylene copolymer which comprises a a) random propylene copolymer having a content of ethylene and/or C 4-C 8a-olefin of 0.5 to 12 wt % and optionally an b) ethylene-a-olefin rubber, B) 70 98 wt % of a high density polyethylene having a density of 930 to 965 kg/m3 and a MFR (190° C./2.16 kg) of 0.3 to 20 g/10 min. | 06-17-2010 |
20100190931 | CATALYST SYSTEM FOR POLYMERIZATION OF OLEFINIC MONOMERS, PROCESS FOR PREPARING POLYMERS, AND POLYMERS PREPARED BY THE PROCESS - The present invention relates to new catalyst supports comprising nanofibers, a catalyst system comprising these supports as well as a process for preparing nanocomposites and the nanocomposites prepared. The invention especially concerns a supported catalyst system for polymerization of olefins, comprising a support made of fibers or a fleece of fibers, wherein the mean fiber diameter is less than 1000 nm, preferably less than 500 nm and the mean fiber length is more than 200,000 nm, preferably more than 500,000 nm and especially preferred more than 1,000,000 nm as well as a process for polymerizing olefinic systems in the presence of these catalyst systems and the resulting nanocomposites. | 07-29-2010 |
20100197864 | CATALYTIC OLEFIN BLOCK COPOLYMERS WITH CONTROLLED BLOCK SEQUENCE DISTRIBUTION AND AT LEAST ONE LOW CRYSTALLINITY HARD BLOCK - The invention is related to catalytic olefin block copolymers with a controlled block sequence distribution and at least one low crystallinity hard block. The block copolymer has a number of unique characteristics disclosed here. | 08-05-2010 |
20100210791 | Multimodal Polyethylene Copolymer Resin Composition, a Preparation Process Therefor and a Polymeric Product Comprising the Same - The invention relates to a multimodal polyethylene copolymer resin composition comprising (a) a lower molecular weight (LMW) ethylene polymer fraction and (b) a higher molecular weight (HMW) ethylene copolymer fraction, wherein the higher molecular weight (HMW) ethylene copolymer fraction comprises (b1) a higher molecular weight (HMW) ethylene copolymer subfraction having a weight average molecular weight at least 2 times the weight average molecular weight (Mw) of said multimodal polyethylene copolymer resin composition, which (b1) higher molecular weight (HMW) ethylene copolymer subfraction amounts from about 1-30 wt % of the total amount of the multimodal polyethylene copolymer resin composition and comprises comonomers in amount of at least about 1 wt % of the total amount of comonomer present in said multimodal polyethylene copolymer resin composition, a process for its preparation and its use. | 08-19-2010 |
20100216947 | ETHYLENE BASED POLYMER COMPOSITION AND FILM - An ethylene based polymer composition comprising the following component (A) and the following component (B) wherein the content of the component (B) is 0.5 to 20 parts by weight per 100 parts by weight of the component (A): | 08-26-2010 |
20100222516 | TACTIC POLYMER POLYMERIZATION PROCESS USING CHIRAL CATALYSTS - A process for forming tactic polymers employing at least one olefin polymerization catalyst comprising a non-racemic mixture of the R- and S-enantiomers of a metal complex containing at least one asymmetrically substituted (chiral) carbon atom, and a chain shuttling agent, a polar aprotic organic compound, or both a chain shuttling agent and a polar aprotic organic compound. | 09-02-2010 |
20100222517 | OPTICAL FILM - An optical film having at least one layer formed of a polyolefin based resin composition containing 8 to 30 wt % of a component (A) defined below and 92 to 70 wt % of a component (B) defined below, with the proviso that the total of the component (A) and the component (B) is 100 wt %:
| 09-02-2010 |
20100222518 | HETEROPHASIC POLYOLEFIN COMPOSITIONS HAVING IMPROVED TENSILE PROPERTIES - Polyolefin composition comprising, in percent by weight: A) 50-75% of a blend of polymers (PP) and (EC | 09-02-2010 |
20100227977 | Synthesis and use of well-defined, highly-branched saturated hydrocarbon polymers - The present invention relates to a method to produce highly branched polymers with a polyolefin backbone structure of ethylene and precise control of the nature of the branching. In particular, the distribution of branch length and number of branches can be more precisely controlled via the polymerization method of the present invention. The method comprises using anionic chemistry to make unsaturated polydienes with a well-defined, highly-branched structure, and then hydrogenating these polydienes to form highly branched or dendritic saturated hydrocarbon polymers. Highly branched or dendritic polyethylene, ethylene-propylene copolymer and atactic polypropylene are among the saturated hydrocarbon polymers that can be anionically synthesized via the proper selection of diene monomer type, coupling agent, and hydrogenation conditions. The highly branched or dendritic saturated hydrocarbon polymers of the present invention find application in injection molding and extrusion processes as a minor additive for improving processability of linear polyolefins by delaying the onset of melt fracture, and correspondingly increasing melt throughput rates. An additional benefit is that the mechanical properties of the polyolefinic film, sheet, pipe or fiber produced with minor amounts of highly branched or dendritic saturated hydrocarbon polymers of the present disclosure are not negatively impacted. | 09-09-2010 |
20100240835 | ETHYLENE BASED POLYMER COMPOSITION AND FILM - An ethylene based polymer composition comprising the following component (A) and the following component (B) wherein the content of the component (B) is 0.1 to 20 parts by weight per 100 parts by weight of the component (A): | 09-23-2010 |
20100240836 | PROCESS FOR THE MANUFACTURE OF HETEROPHASIC PROPYLENE COPOLYMER - The invention is directed to a process for the manufacture of heterophasic propylene copolymer compositions comprising the steps of forming a propylene polymer matrix in at least one slurry reactor and optionally in at least one gas phase reactor and subsequently forming in at least one gas phase reactor an elastomeric copolymer by copolymerizing propylene with ethylene and/or with another α-olefin in the presence of said matrix, wherein the polymerization is carried out in the presence of a catalyst system comprising a catalyst in form of solid particles, said particles (a) have a surface area of less than 20 m | 09-23-2010 |
20100249327 | METHOD FOR THE PREPARATION OF A HETEROPHASIC COPOLYMER AND USES THEREOF - Methods for preparing an impact copolymer by selecting a continuous phase polymer having a first melt flow rate and selecting a rubber phase polymeric material such that the final melt flow rate of the impact copolymer is within 2 g/10 min of the first melt flow rate. Impact copolymers made from such methods and films and molded articles produced from such impact copolymers are also included. | 09-30-2010 |
20100249328 | ETHYLENE BASED POLYMER COMPOSITION AND FILM - An ethylene based polymer composition comprising the following component (A), the following component (B) and the following component (C) wherein the content of the component (A) is 120 to 1700 parts by weight per 100 parts by weight of the component (B) and the content of the component (C) is 3 to 20 parts by weight per 100 parts by weight of the component (B): | 09-30-2010 |
20100249329 | STERILISABLE AND TOUGH IMPACT POLYPROPYLENE COMPOSITION - The present invention relates to a heterophasic polypropylene composition which is sterilisable and has a high impact strength as well as improved optical properties both before and after a step of heat sterilisation. Furthermore, the present invention relates to a film comprising said heterophasic polypropylene composition, and to the use of said composition for the production of a film. Finally, the present invention is directed to the use of such a film as a packaging material for medicals and/or food. The heterophasic polypropylene composition comprises a matrix resin which comprises (A) a propylene homopolymer and (B) a propylene random copolymer; and a dispersed phase which comprises (C) an ethylene-propylene rubber wherein (i) the melting point of the heterophasic polypropylene composition is at least 145° C. and (ii) the content of comonomer in the matrix resin is at least 0.5 wt % based on the entire matrix resin without any additives. | 09-30-2010 |
20100249330 | PROCESS FOR THE PREPARATION OF HIGH FLUIDITY PROPYLENE POLYMERS - Process for the production of propylene polymers having a Melt Flow rate (230° C., 2.16 Kg) higher than 30 g/10′ and preferably higher than 50 g/10′ and also characterized by having broad molecular weight distribution (MWD) carried out in the presence of a catalyst system comprising (a) a solid catalyst component containing Mg, Ti, halogen and an electron donor compound selected from succinates; | 09-30-2010 |
20100261848 | Closures for bottles - A dual reactor solution process gives high density polyethylene compositions containing a first ethylene polymer and a second ethylene polymer which have a good balance of processability, toughness, and environmental stress crack resistance combined with good organoleptic properties. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles. | 10-14-2010 |
20100286338 | Fibers And Nonwovens Comprising Polyethylene Blends And Mixtures - Fibers (including bicomponent fibers) comprising polymeric blends and polymeric mixtures that incorporate a blend of a first polyethylene and a second polyethylene are described. The first and second polyethylenes have a predetermined relationship for the density and the melt index of the individual polyethylenes. | 11-11-2010 |
20100286339 | Fibers And Nonwovens Comprising Polypropylene Blends And Mixtures - Polypropylene materials comprising a polymeric blend, the polymeric blend comprising: (a) a first linear low density metallocene polyethylene; and (b) a second linear low density polyethylene; wherein the polypropylene material has a first turbidity half time measured under quiescent conditions, and a second turbidity half time measured at a wall shear stress of about 0.11 MPa, and having a certain ratio of the second turbidity half time to the first turbidity half time. | 11-11-2010 |
20100292407 | PROCESS FOR PREPARING COPOLYMERS AND BLEND COMPOSITIONS CONTAINING THE SAME - Disclosed is a novel ethylene copolymer by copolymerizing an ethylene and at least one comonomer selected from a compound represented by the formula H | 11-18-2010 |
20100298501 | ETHYLENE TERPOLYMERS - A copolymer of ethylene, a catalyst system suitable to prepare the copolymer, and a process to prepare such copolymer are described. The copolymer comprises from 60 to 80% by weight of ethylene and from 20 to 40% by weight of at least one first α-olefin comonomer having n carbon atoms and at least one second α-olefin comonomer having (n−1) carbon atoms, n being from 4 to 13, has a polydispersity M | 11-25-2010 |
20100305276 | TSOFT AND FLEXIBLE POLYOLEFIN COMPOSITIONS - A polyolefin composition having unusually low values of flexural modulus and shore hardness and comprising, in percent by weight: A) 15-40% of a copolymer of propylene with hexene-1 containing from 2.5 to 10% of hexene-1 and having Melt Flow Rate (MFR, measured according to ISO 1133, 230° C./2.16 Kg) from 0.5 to 100 g/10 min.; and B) 60-85% of an ethylene copolymer containing ethylene in a quantity equal to or lower than 40%, and having solubility in xylene at room temperature greater than 70%. | 12-02-2010 |
20100317803 | Polypropylene Composition Comprising a Propylene Copolymer Component - The present invention concerns a polypropylene composition comprising a nucleated propylene copolymer having improved optical properties. | 12-16-2010 |
20100317804 | NOVEL LDPE ENABLING HIGH OUTPUT AND GOOD OPTICS WHEN BLENDED WITH OTHER POLYMERS - An ethylene-based polymer characterized as having a density from about 0.9 to about 0.94 grams per cubic centimeter, a molecular weight distribution (M | 12-16-2010 |
20110003939 | 1-BUTENE TERPOLYMERS - A 1-butene propylene ethylene terpolymer having a content of propylene derived units ranging from 0.1-10% by weight and an ethylene derived units content ranging from 0.1 to 3% by weight having the following properties: a) distribution of molecular weight Mw/Mn measured by GPC lower than 3.5; b) melting point (DSC) comprised between 60° C. and 120° C.; c) Content of 1-butene units in the form of isotactic pentads (mmmm) higher than 95%. | 01-06-2011 |
20110003940 | ETHYLENE-BASED POLYMER COMPOSITIONS FOR USE AS A BLEND COMPONENT IN SHRINKAGE FILM APPLICATIONS - An ethylene-based polymer composition has been discovered and is characterized by a Comonomer Distribution Constant greater than about 45. The new ethylene-based polymer compositions are useful for making many articles, especially including films. Formulations made into films comprising the new polymers are also disclosed, especially blends with synthetic polymer like LDPE where the % LDPE is less than 50% in which the MD shrink tension is greater than 15 cN, puncture is greater than 75 ft-lb/in | 01-06-2011 |
20110021708 | POLYPROPYLENE BLENDS FOR NON-WOVEN PRODUCTION - Polypropylene resin compositions are provided that are useful in the production of thermoformed articles and biaxially oriented polypropylene films (BOPPs), tapes and fibers. The resins of the present invention are blends of high crystalline (low solubles) polypropylene homopolymer and an ethylene/propylene random copolymer (RCP). These blends can be used to replace standard high solubles BOPP grade polypropylene homopolymers. In addition, the use of high crystalline polypropylene homopolymers in the blends imparts improved stiffness to the finished films while maintaining good processability of the blends. Such polypropylene compositions are effectively produced by in-reactor blending of a high crystalline propylene homopolymer and a propylene/ethylene random copolymer. | 01-27-2011 |
20110021709 | Clarified Polypropylene and Ethylene Alpha Olefin Blend - The present disclosure is directed to polymeric compositions and methods for making the same. The polymeric composition includes a clarified polypropylene and a plurality of ethylene and alpha-olefin copolymers. The polymeric composition has low haze and exhibits increased impact strength when compared to clarified polypropylene. | 01-27-2011 |
20110034634 | HIGH PURITY HETEROPHASIC PROPYLENE COPOLYMERS - High purity heterophasic polypropylene copolymers comprising (A) 73 to 98 wt % of a propylene homo- or copolymer matrix with an MFR | 02-10-2011 |
20110034635 | ETHYLENE-BASED POLYMER COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED FROM THE SAME - The invention provides a composition comprising a blend, which comprises a high molecular weight ethylene-based polymer, and a low molecular weight ethylene-based polymer, and wherein the high molecular weight ethylene-based polymer has a density less than, or equal to, 0.955 g/cm | 02-10-2011 |
20110040040 | POLYMER MIXTURE - A nonwoven and a nonwoven fiber are disclosed. The fleece or fleece fiber include a polymer mixture. The polymer mixture includes a polyethyelene and a LLDPE. Various applications for the fleece are proposed. | 02-17-2011 |
20110040041 | Polymerization Processes Using Metallocene Catalysts, Their Polymer Products and End Uses - A process for the production of an ethylene alpha-olefin copolymer is disclosed, the process including polymerizing ethylene and at least one alpha-olefin by contacting the ethylene and the at least one alpha-olefin with a metallocene catalyst in at least one gas phase reactor at a reactor pressure of from 0.7 to 70 bar and a reactor temperature of from 20° C. to 150° C. to form an ethylene alpha-olefin copolymer. The resulting ethylene alpha-olefin copolymer may have a density D of 0.927 g/cc or less, a melt index (I | 02-17-2011 |
20110046311 | RESIN COMPOSITION AND MELT BAG - Melt bags of the invention are molten uniformly at temperatures lower than melting operation temperatures in the product manufacturing and do not remain unmolten in the final products. The melt bags have high storage stability and excellent mechanical properties. Resin compositions of the invention are suited to give such melt bags. | 02-24-2011 |
20110046312 | RESIN COMPOSITION - A resin composition, comprising (a) 50 to 99% by weight of a crystalline polypropylene resin, and (b) 1 to 50% by weight of a propylene copolymer comprising 50 to 85% by mol of a propylene unit and 15 to 50% by mol of a C | 02-24-2011 |
20110065867 | High Shrinkage Propylene-Based Films - A heat-shrinkable film. The film comprising at least one layer having at least one propylene-based polymer comprising 60 wt % to 98 wt % propylene derived units and 2 wt % to 40 wt % one or more other alpha olefins, the propylene-based polymer having: a triad tacticity of 70% or more, a heat of fusion of less than 80 J/g, a weight average molecular weight (Mw) as measured by GPC of from 70,000 to 250,000. The layer also comprises at least one thermoplastic resin and at least one hydrocarbon resin. | 03-17-2011 |
20110092649 | THERMOPLASTIC RESIN COMPOSITION, A SOLAR CELL SEALING SHEET, AND A SOLAR CELL - The present invention provides a thermoplastic resin composition that gives a solar cell sealing sheet having, even without being crosslinked, good mechanical strength, solar cell sealability, transparency, and weatherability. | 04-21-2011 |
20110105691 | Blends of Polypropylene and Polyethylene and Methods of Forming the Same - Polymer blends and methods of forming the same are described herein. The polymer blends generally include a single site transition metal catalyst formed polypropylene, a single site transition metal catalyst formed polyethylene and a polyethylene compatible nucleator. | 05-05-2011 |
20110118416 | Catalyst Composition Comprising Shuttling Agent for Ethylene Multi-Block Copolymer Formation - A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining:
| 05-19-2011 |
20110118417 | Polyethylene Compositions - Provided are various compositions, including but not limited to a bimodal polyethylene composition having a density of 0.940 g/cc or more, the composition comprising a high molecular weight polyethylene component and a low molecular weight polyethylene component, wherein the composition qualifies as a PE 100 material such that in accordance with ISO 1167 a pipe formed from the composition that is subjected to internal pipe resistance has an extrapolated stress of 10 MPa or more when the internal pipe resistance curve is extrapolated to 50 or 100 years in accordance with ISO 9080:2003(E), and wherein the melt strength is greater than 18 cN. | 05-19-2011 |
20110118418 | Propylene-Based Elastomeric Composition - The present invention includes a polyolefin elastomeric composition comprising a propylene-based elastomer having at least seventy five weight percent units derived from propylene, the propylene-based elastomer exhibiting a heat of fusion of from 1 to 35 Joules/gram, a weight average molecular weight of from 5400 to 875000 g/mol, and a permanent set of less than 40%; and a homogeneous ethylene-alpha olefin interpolymer having a molecular weight distribution of less than 3.5, a density from 0.885 to 0.915 g/ml, and a heat of fusion of from 65 to 125 Joules/gram, wherein the ratio of the propylene-based elastomer to the homogeneous ethylene-alpha olefin interpolymer is from 97:3 to 80:20, and wherein the composition exhibits a heat of fusion from 2 to 55 Joules/gram, and a 2% secant flexural modulus of less than 69 MPa. | 05-19-2011 |
20110124817 | Molded Polymeric Article with Low Haze and High Clarity - The present disclosure provides a molded article composed of a polymeric composition and processes for producing the same. The polymeric composition includes from about 60 wt % to about 99 wt % of a matrix of a propylene-based polymer. The propylene-based polymer has a refractive index (n1). The polymeric composition also includes from about 40 wt % to about 1 wt % of elongated elastomer particles dispersed in the propylene-based polymer. The elongated elastomer particles have a refractive index (n2). The propylene-based polymer and the elongated elastomer particles exhibit a refractive index mismatch whereby |n1−n2|>0.002. The molded article has a haze value less than about 20% and optionally a viscosity ratio (VR) greater than 0.28. | 05-26-2011 |
20110136981 | BUTENE-1 COPOLYMERS AND PROCESS FOR THEIR PREPARATION - The present invention relates to butene-1 copolymers containing up to 40% by mol of ethylene and/or propylene derived units characterized by the following properties:
| 06-09-2011 |
20110136982 | Thermoplastic Polyolefin Blends - This invention relates to a blend composition comprising: 1) a linear ethylene containing polymer, such as a LLDPE, a HDPE or the like; and at least 1 weight percent of an in-reactor polymer blend comprising: (a) a first ethylene containing polymer having a density of greater than 0.90 g/cm | 06-09-2011 |
20110136983 | PROCESSES AND COMPOSTIONS FOR INJECTION BLOW MOLDING - The invention provides a process for injection blow molding an article, said process comprising injecting into a mold cavity a composition, comprising at least one ethylene-based polymer and less than, or equal to, 1000 ppm of a mold release agent, based on the total weight of the composition. The invention also provides a composition comprising a blend, wherein the blend comprises at least one high molecular weight (HMW) ethylene-based polymer, and at least one low molecular weight (LMW) ethylene-based polymer, and wherein the blend has an unsaturation level, as determined by IR, and expressed as vinyls per 1000 carbon atoms, less than, or equal to, 0.5 vinyls per 1000 carbon atoms, and wherein the high molecular weight (HMW) ethylene-based polymer has a density from 0.925 to 0.950 g/cc. | 06-09-2011 |
20110144274 | PRODUCTION PROCESS OF OLEFIN POLYMERIZATION CATALYST AND OLEFIN POLYMER - A process for producing an olefin polymerization catalyst, comprising steps of (1) contacting a defined amount of a zinc compound represented by the defined formula, Zn(L | 06-16-2011 |
20110152462 | POLYOLEFIN ELASTIC FIBER - An article comprising a yarn comprising an elastomeric propylene-based polymer composition; said polymer composition comprising at least one elastomeric propylene-based polymer, wherein said yarn has break elongation of greater than 200%. | 06-23-2011 |
20110152463 | RESIN COMPOSITION - Disclosed is a resin composition having excellent moldability and capable of giving molded articles having good appearance by slowing down the crystallization rate. The resin composition is characterized by comprising 1 to 99% by weight of the following component (A) and 99 to 1% by weight of the following component (B), wherein the total amount of the component (A) and the component (B) is 100% by weight: (A) a crystalline polypropylene-based resin; and (B) an amorphous polybutene-based resin having a weight average molecular weight of 10,000 or more, wherein neither a crystal fusion peak in which the amount of heat of crystal fusion is 1 J/g or more nor a crystallization peak in which the amount of heat of crystallization is 1 J/g or more is observed within a range of −100 to 200° C. as measured by differential scanning calorimetry (DSC). | 06-23-2011 |
20110160403 | Films of polyethlene blends - A film comprising a polymer blend of
| 06-30-2011 |
20110172366 | OLEFIN/AROMATIC VINYL COPOLYMER, PROCESS FOR PRODUCTION THEREOF, RESIN COMPOSITIONS CONTAINING THE COPOLYMER, AND STRETCHED PRODUCTS OF THE COPOLYMER - The present invention relates to such a copolymer comprising an olefin and an aromatic vinyl compound that has a syndiotactic structure, high block property and a wide molecular weight distribution. Specifically, it relates to a copolymer comprising an olefin and an aromatic vinyl compound, in which a content of the aromatic vinyl compound is from 1 to 99% by mol; a molecular distribution is 1.7 or more; a signal based on an (olefin-aromatic vinyl compound-olefin) linkage as a node of the copolymer, a signal based on an (aromatic vinyl compound-aromatic vinyl compound-olefin) linkage, a signal based on an (aromatic vinyl compound-aromatic vinyl compound-aromatic vinyl compound) linkage as a block linkage of the aromatic vinyl compound, and a signal based on an (olefin-olefin-olefin) linkage as a block linkage of the olefin are present; an index showing block property of the aromatic vinyl compound component is from 30 to 100%; and a stereoregularity of a repeating unit chain constituted by the aromatic vinyl compound is 80% by mol or more, a method for producing the same, a resin composition, and a stretched product. | 07-14-2011 |
20110184127 | Elastic Films Having Improved Mechanical And Elastic Properties And Methods For Making The Same - A film comprising one or more propylene-based polymers, one or more hydrocarbon resins, and one or more polyolefin additives provides enhanced mechanical and elastic properties compared to the neat propylene-based polymer. The propylene-based polymer may have (i) 60 wt % or more units derived from propylene; and (ii) crystallinity of from 0.25% to 40%, resulting from isotactically arranged propylene-derived sequences. The hydrocarbon resin may have a glass transition temperature greater than 20° C. The polyolefin additive may have a crystallinity greater than the crystallinity of the propylene-based polymer. Methods for making and using the films are also described. | 07-28-2011 |
20110190450 | Polyolefin Compositions Having Good Resistance at Whitening - A polyolefin composition comprising, in percentage by weight based on the weight sum of the components (a1), (a2) and (b): | 08-04-2011 |
20110196102 | Heterogeneous Polymer Blend With Continuous Elastomeric Phase And Process Of Making The Same - A heterogeneous polymer blend comprises a dispersed phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a continuous phase comprising a second polymer different from the first polymer. The second polymer has a crystallinity of less than 20% and is at least partially cross-linked. | 08-11-2011 |
20110196103 | PROPYLENE COPOLYMER, POLYPROPYLENE COMPOSITION AND USES THEREOF, TRANSITION METAL COMPOUND AND OLEFIN POLYMERIZATION CATALYST - An olefin polymerization catalyst having (A) a transition metal compound (2a) or (3a) and (B) at least one compound selected from (B-1) an organometallic compound, (B-2) an organoaluminum oxy compound and (B-3) a compound capable of forming an ion pair by reacting with the transition metal compound (A). | 08-11-2011 |
20110201758 | Tough composition for food applications - Heterophasic polypropylene composition comprising:—a polypropylene matrix (M) and—an elastomeric copolymer (E) being dispersed in the matrix (M), wherein the elastomeric copolymer (E) comprises units derived from—propylene and—ethylene and/or C4 to C20 α-olefin, and wherein further,—the intrinsic viscosity of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is above 2.1 dl/g measured according to ISO 1628-1 (at 135° C. in decaline) and/or—Mz/Mw of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is more than 2.6, preferably 2.7, wherein the Mz is the z-average molecular weight measured according to ISO 16014-4:2003 and Mw is the weight average molecular weight measured according to ISO 16014-4:2003. | 08-18-2011 |
20110207888 | Elastomeric Polymer Blends and Processes for Their Production - Elastomeric polymer blends and processes for their production are described. Specifically, the polymer blends comprise a first polymer and a second polymer, where the first polymer comprises from about 70 wt % to about 90 wt % units derived from propylene and from about 10 wt % to about 30 wt % units derived from ethylene and/or a C | 08-25-2011 |
20110245427 | Pressure Pipes and Polyolefin Composition for the Manufacture Thereof - Articles, particularly pressure pipes, having high strength as well as high stiffness and very good impact resistance even at low temperatures can be obtained by using a heterophasic polyolefin composition comprising (percent by weight) 70-90% of a random copolymer of propylene with 0.5-6% of 1-hexene, and 10-30% of a polymer of ethylene with a C | 10-06-2011 |
20110275765 | PROCESS FOR PRODUCING ETHYLENE-PROPYLENE COPOLYMER - There are provided an ethylene-propylene copolymer having the following structural characteristics, and a polypropylene resin composition comprising the above copolymer and polypropylene having a melting temperature of 160° C. or higher:
| 11-10-2011 |
20110288237 | Multi-Stage Process for Producing Polyethylene with Lowered Gel Formation - The present inventions relates to a process for producing polyethylene compositions comprising polymerising polyethylene resins in a cascaded multi-stage reaction in which the reaction steps are performed in at least two slurry phase reactors (A) and (B) and at least one gas phase reactor (C) which are arranged in series in any order wherein in reactor (A) a low molecular weight ethylene homo- or copolymer fraction having a MFR | 11-24-2011 |
20110306731 | HIGH STIFFNESS HIGH IMPACT PROPYLENE IMPACT COPOLYMERS FIELD OF THE INVENTION - The present invention relates to polypropylene impact copolymer compositions which exhibit improved stiffness without degrading the impact resistance performance. The polypropylene impact copolymer comprises a matrix and a dispersed phase. The matrix comprises a polypropylene homopolymer or a propylene/alpha-olefin random copolymer which comprises more than 50 wt. % of units derived from propylene monomer. The matrix should have a relatively high crystallinity, preferably 50% or greater. The polypropylene homopolymer or a propylene/alpha-olefin random copolymer preferably has a MWD between 4 and 8, such as typically obtained using Ziegler-Natta catalysts. The dispersed phase in the impact copolymer comprises an ethylene-propylene copolymer which comprises from 45 to 70 wt. % of units derived from an ethylene monomer. Preferably the dispersed phase comprises from 20 to 50 percent by weight of the polypropylene impact copolymer. | 12-15-2011 |
20110313111 | Ethylene Copolymers, Catalyst System and Process for Preparing the Same - An ethylene copolymer, a catalyst system suitable to prepare the ethylene copolymer, and a process to prepare such ethylene copolymer are described. The use of the ethylene copolymer as impact modifier in polyethylene and as compatibilizer in a polymer blend are also described. The ethylene copolymer has a density from 0.855 g/cm | 12-22-2011 |
20120016087 | Polyolefin Masterbatch and Composition Suitable for Injection Molding - A masterbatch composition comprising, all percent amounts being by weight:
| 01-19-2012 |
20120035327 | Polyolefin Masterbatch and Composition Suitable for Injection Molding - A masterbatch composition comprising: | 02-09-2012 |
20120041147 | Method of controlling polymer architecture - Carbon dioxide is used to control the ratio of polymer components in a polyethylene composition made using a combination catalyst comprising a chromium catalyst, a single site catalyst and one or more activators. | 02-16-2012 |
20120041148 | HETEROGENEOUS ETHYLENE/ALPHA-OLEFIN INTERPOLYMER - An interpolymer of ethylene and at least one alpha-olefin is claimed, wherein the ethylene interpolymer is characterized as having an average Mv and a valley temperature between the interpolymer and high crystalline fraction, Thc, such that the average Mv for a fraction above Thc from ATREF divided by average Mv of the whole polymer from ATREF (Mhc/Mp) is less then about 1.95 and wherein the interpolymer has a CDBI of less than 60%. The interpolymer of ethylene and at least one alpha-olefin can also be characterized as having a high density (HD) fraction and an overall density such that % HD fraction<−2733.3+2988.7x+144111.5 (x−0.92325)2 where x is the density in grams/cubic centimeter. Fabricated articles comprising the novel interpolymers are also disclosed. | 02-16-2012 |
20120041149 | ETHYLENE COPOLYMER AND A METHOD OF PREPARING THE SAME - Provided are ethylene copolymers and a process for preparing the same. More specifically, provided are ethylene copolymers exhibiting excellent processibility and physical properties due to its multimodal molecular weight distribution index, through a multi-stage process by using reactors connected in series or in parallel in the presence of catalyst composition containing transition metal catalyst, and a process for preparing the same. | 02-16-2012 |
20120046417 | Propylene Polymer Compositions - A propylene composition comprising (percent by weight):
| 02-23-2012 |
20120059126 | Propylene Polymer Compositions - A propylene composition comprising (percent by weight): | 03-08-2012 |
20120065335 | Polyethylene composition suitable for the preparation of films and process for preparing the same - A polyethylene composition, in particular suitable for the preparation of films, and a process for preparing the same are described. The polyethylene composition of the invention comprises from 50 to 89% by weight of a first polyethylene component comprising at least one multimodal polyethylene including a plurality of ethylene polymer fractions having distinct molecular weights and comonomer contents, at least one of said plurality of ethylene polymer fractions being prepared by the use of a single site catalyst, and from 50 to 11% by weight of a second polyethylene component comprising a low or medium density polyethylene. | 03-15-2012 |
20120101232 | VACUUM THERMOFORMED, EXTRUDED SHEETING WITH IMPROVED REDUCED GLOSS - The present invention is directed to an elastomer composition having at least two phases, one phase comprising a very low density polyethylene “VLDPE” component and another phase comprising a propylene polymer component wherein the propylene polymer component comprises at least one branched polypropylene and the VLDPE phase is continuous. Preferably, the VLDPE component has a melt tan delta between about 0.7 and 8 as measured by parallel plate rheometer at 0.1 radians per second, 180° C., and 10 percent strain; and the ratio of the melt tan delta of the VLDPE to the melt tan delta of the propylene component is from 0.5 to 4. The invention also provides a method of making such compositions, and to low gloss articles prepared from the same. The inventive compositions are particularly suitable for fabricating thermoformed sheeting with reduced gloss, most preferably employed as a skin in a composite interior automotive article comprising a shaped article and a negative thermoformed shaped skin or as non-carpet automotive flooring. | 04-26-2012 |
20120116022 | PROCESS FOR MAKING ETHYLENE POLYMER BLENDS WITH CONTROLLED LONG-CHAIN BRANCHING - A high-temperature solution process for making an ethylene polymer blend having a controlled degree of long-chain branching is disclosed. Ethylene is polymerized in the presence of a first Ziegler-Natta catalyst comprising titanium, magnesium, and aluminum in the absence of hydrogen to produce a first ethylene polymer component having substantial long-chain branching. A second ethylene polymer component having little or no long-chain branching is also prepared. Both polymerizations are performed at a temperature from 140° C. to 250° C. The first and second ethylene polymer components are combined to give a polymer blend. The degree of long-chain branching in the blend is controlled by adjusting the relative amounts of the first and second ethylene polymer components. The invention enables the preparation of valuable products having a pre-determined degree of long-chain branching using readily available Zeigler-Natta catalysts, commercially practiced techniques, and conventional equipment. | 05-10-2012 |
20120130018 | High Melt Flow Propylene Impact Copolymer and Method - The present disclosure provides a polymerization process for the production of a high melt flow propylene impact copolymer. The process includes contacting an active propylene-based polymer having a melt flow rate greater than about 100 g/10 min with one or more olefins in a polymerization reactor to form the propylene impact copolymer with a melt flow rate greater than about 60 g/10 min. The production of the high melt flow propylene impact copolymer may occur in one or more polymerization reactors, utilizing standard hydrogen concentration, and no visbreaking. | 05-24-2012 |
20120130019 | LDPE FOR USE AS A BLEND COMPONENT IN SHRINKAGE FILM APPLICATIONS - An ethylene-based polymer characterized as having a density from about 0.9 to about 0.94 grams per cubic centimeter, a molecular weight distribution (Mw/Mn) from about 4 to about 10, a melt index (I2) from about 0.05 to about 2 grams per 10 minutes, a gpcBR value greater than 0.05 as determined by a gpcBR Branching Index and a Y value greater than 0.4 is disclosed. This ethylene-based polymer is especially useful for blending with other polymers such as LLDPE. When converting the blends into film, especially shrink film, the film shows good optics, good shrink tension, high stiffness, high tensile modulus, and tensile strength. When this resin is blended at with a LLDPE on a blown film line, improvements are seen in haze, gloss, clarity, and MD and CD tear as compared to a comparative LDPE. | 05-24-2012 |
20120136121 | Polyolefin Compositions - Polyolefin compositions particularly suitable for cast film, exhibiting heat sealability, retortability, low haze and stiffness, comprising:
| 05-31-2012 |
20120149846 | Thermoplastic Elastomer Polyolefin In-Reactor Blends and Molded Articles Therefrom - This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene-containing polymer having a density of greater than 0.90 g/cm | 06-14-2012 |
20120165472 | POLYOLEFINIC COMPOSITIONS - A polymer composition comprising (per cent by weight):
| 06-28-2012 |
20120172532 | COMPRESSION BLOW FORMED ARTICLES - The invention provides a compression blow formed article formed from a composition comprising at least the following: 1) a polypropylene homopolymer and 2) a propylene-based polymer. | 07-05-2012 |
20120172533 | POLYOLEFINIC COMPOSITIONS - A polymer composition comprising (per cent by weight): | 07-05-2012 |
20120172534 | POWDERED THERMOPLASTIC POLYOLEFIN ELASTOMER COMPOSITION FOR SLUSH MOLDING PROCESSES - The present invention relates to a thermoplastic polyolefin elastomer composition in powder form comprising (i) an olefin block copolymer or (ii) a substantially linear ethylene polymer and/or a linear ethylene polymer and propylene polymer blend. Said composition demonstrates good pulverizing and flow characteristics at ambient temperature. In another aspect, this invention relates to a process for preparing said thermoplastic polyolefin elastomer powder and applications for using said powder. In a further aspect, this invention relates to slush molding said thermoplastic polyolefm elastomer composition into skins, particularly skins for automotive interior applications such as instrument panels. | 07-05-2012 |
20120178881 | Propylene polymer compositions - A propylene polymer composition comprising (percent by weight):
| 07-12-2012 |
20120178882 | PROPYLENE POLYMER COMPOSITIONS - A propylene composition comprising (percent by weight):
| 07-12-2012 |
20120178883 | Propylene Polymer Compositions - A propylene composition comprising (percent by weight):
| 07-12-2012 |
20120196984 | Polyolefin Blends Used as Masterbatch Concentrates - Polyolefin blends and processes for forming polyolefin blends are described herein. Such processes generally include providing a polyolefin, providing a concentrated monomer system including a first monomer and a first portion of the polyolefin and blending the concentrated monomer system with a second portion of the polyolefin to form a modified polyolefin. | 08-02-2012 |
20120214946 | 10-50 G/D HIGH STRENGTH POLYETHYLENE FIBER AND PREPARATION METHOD THEREOF - A 10-50 g/d high strength polyethylene fiber and preparation method thereof are provided, which are in the high molecular material field. Said fiber is obtained by cross blend melt spinning method, and its strength is 10-50 g/d, its modulus is 400-2000 g/d. The material used by said cross blend melt spinning method is obtained by mixing low density polyethylene with molecular weight of 2/5-500,000 and super molecule weight polyethylene with molecular weight of 120-7000,000 in the proportion of 2-10:1. Flow modifier or diluent is not additionally added in the present invention, raw material consumption is low, extra high pressure is avoided, energy consumption and cost of production are low, technological process is simple, single line capacity is easily raised, and large scale industrial production can be realized. | 08-23-2012 |
20120214947 | HETEROPHASIC POLYPROPYLENE RESIN - Heterophasic polypropylene resin comprising a propylene random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase wherein the heterophasic polypropylene resin has a MFR (2.16 kg, 230° C.) of 1.0 to 100 g/10 min, determined according to ISO 1133, and a fraction soluble in p-xylene at 25° C. (XCS fraction) which is present in the resin in an amount of 28 to 50 wt %, and which has a molecular weight distribution (M | 08-23-2012 |
20120220726 | Propylene Polymers Compositions - A propylene composition comprising (percent by weight): | 08-30-2012 |
20120220727 | Heterophasic Polypropylene Resin with Long Chain Branching - Heterophasic polypropylene resin having a MFR (2.16 kg, 230° C.) of at least 1.0 g/1 Omin, determined according to ISO 1133, comprising a propylene random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase, wherein the heterophasic polypropylene resin has a fraction soluble in p-xylene at 25° C. (XCS fraction) being present in the resin in an amount of 15 to 45 wt % whereby the XCS fraction has an ethylene content of 25 wt % or lower, and a fraction insoluble in p-xylene at 25 0C (XCU fraction), said heterophasic polypropylene resin being characterised by a strain hardening factor (SHF) of 1.7 to 4.0 when measured at a strain rate of 3.0 s | 08-30-2012 |
20120220728 | 4-METHYL-1-PENTENE/a-OLEFIN COPOLYMER, COMPOSITION COMPRISING THE COPOLYMER AND 4-METHYL-1-PENTENE COPOLYMER COMPOSITION - The present invention provides a 4-methyl-1-pentene/α-olefin copolymer being excellent in lightness, stress absorption, stress relaxation, vibration damping properties, scratch resistance, abrasion resistance, toughness, mechanical properties and flexibility, having no stickiness during molding operation and being excellent in the balance among these properties; a composition comprising the polymer; and uses thereof. The 4-methyl-1-pentene/α-olefin copolymer (A) of the present invention satisfies specific requirements, and comprises 5 to 95 mol % of a structural unit (i) derived from 4-methyl-1-pentene, 5 to 95 mol % of a structural unit (ii) derived from at least one kind of α-olefin selected from α-olefins having 2 to 20 carbon atoms excluding 4-methyl-1-pentene and 0 to 10 mol % of a structural unit (iii) derived from a non-conjugated polyene, provided that the total of the structural units (i), (ii), and (iii) is 100 mol %. | 08-30-2012 |
20120225999 | Polyolefin Compositions Having a Low Seal Temperature and Improved Hot Tack - Polyolefin compositions comprising, all percentages being by weight:
| 09-06-2012 |
20120232221 | PROCESS FOR THE PREPARATION OF IMPACT RESISTANT PROPYLENE POLYMER COMPOSITIONS - A process for the preparation of propylene polymer compositions comprising from 50 to 90% by weight of a propylene polymer fraction insoluble in xylene at 25° C., and from 10 to 50% by weight of an ethylene copolymer fraction soluble in xylene at 25° C., said process being carried out in the presence of a specific catalyst system, is also characterized by the following step: | 09-13-2012 |
20120238704 | POLYOLEFIN COMPOSITIONS HAVING IMPROVED SEALABILITY - Polyolefin composition with improved sealability comprising from 70 to 95% of one or more copolymers of propylene with one or more comonomers selected from ethylene, a C | 09-20-2012 |
20120264883 | SOFT POLYOLEFIN COMPOSITIONS WITH IMPROVED PROCESSABILITY - Soft polyolefin composition with improved processability comprising from 8 to 45% by weight of a polypropylene component (A), from 45 to 82% by weight of a polyolefin component (B), and from 5 to 25% by weight of a butene-1 (co)polymer (C) having a flexural modulus of 60 MPa or less. | 10-18-2012 |
20120277380 | ETHYLENE-BASED POLYMER COMPOSITIONS FOR USE AS A BLEND COMPONENT IN SHRINKAGE FILM APPLICATIONS - An ethylene-based polymer composition has been discovered and is characterized by a Comonomer Distribution Constant greater than about 45. The new ethylene-based polymer compositions and blends thereof with one or more polymers, such as LDPE, are useful for making many articles, especially including films. | 11-01-2012 |
20120329951 | BOPP-FILM - Polypropylene having a melting temperature (T | 12-27-2012 |
20130018154 | POLYETHYLENE MOULDING COMPOSITION WITH IMPROVED STRESS CRACK/STIFFNESS RELATIONSHIP AND IMPACT RESISTANCEAANM Buryak; AndreyAACI LinzAACO ATAAGP Buryak; Andrey Linz ATAANM Dix; AlbrechtAACI LinzAACO ATAAGP Dix; Albrecht Linz ATAANM Kona; Balakantha RaoAACI LinzAACO ATAAGP Kona; Balakantha Rao Linz AT - A high density polyethylene moulding composition having a multimodal molecular weight distribution, having a density according to ISO 1183 at 23° C. in the range of 945 to 965 kg/m | 01-17-2013 |
20130023627 | Polymer Composition - Disclosed herein is a composition substantially free of polyethylene, wherein the composition includes a thermoplastic material having certain specified mechanical properties, and about 2 wt. % to about 25 wt. % (based on the total weight of the composition) of an olefin mixture that consists essentially of a 30:70 to 70:30 weight ratio of a homogeneous ethylene-alpha olefin interpolymer and a propylene-based elastomer having at least 75 wt. % units derived from propylene and about 10 wt. % to about 25 wt. % units derived from a C | 01-24-2013 |
20130030125 | MOULDING COMPOSITION - A polyethylene moulding composition having a multimodal molecular weight distribution, having a density according to ISO 1183 at 23° C. in the range of 920 to 960 kg/m | 01-31-2013 |
20130046061 | ETHYLENE-BASED POLYMER COMPOSITION - An ethylene-based polymer composition has been discovered and is characterized by a Comonomer Distribution Constant greater than about 45. The new ethylene-based polymer compositions are useful for making many articles, especially including films. The polymers are made using a metal complex of a polyvalent aryloxyether. | 02-21-2013 |
20130059981 | THERMOPLASTIC ELASTOMER POLYOLEFIN IN-REACTOR BLENDS AND MOLDED ARTICLES THEREFROM - This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene-containing polymer having a density of greater than 0.90 g/cm | 03-07-2013 |
20130072634 | Propylene Polymer Compositions - A propylene polymer composition comprising (percent by weight): | 03-21-2013 |
20130079470 | RESIN COMPOSITION, METHOD FOR PRODUCING THE SAME, AND MOLDED ARTICLE USING THE SAME - Disclosed is a resin composition that is superior in balance between toughness and flowability and contains little VOC components, specifically a composition comprising 20-80 wt % polymer (A1), 5-55 wt % polymer (A2), and 10-50 wt % copolymer (B), wherein the MFR of the composition is 20 g/10 min or more, the polymer (A1) being a propylene polymer having an intrinsic viscosity of from 0.5 dl/g (inclusive) to 2.0 dl/g (exclusive), a molecular weight distribution of less than 3.0, and a content of propylene-derived structural units of 90 wt % or more, the polymer (A2) being a propylene polymer having an intrinsic viscosity of from 2.0 to 7.0 dl/g, a molecular weight distribution of 3.0 or more, and a content of propylene-derived structural units of 90 wt % or more, the copolymer (B) being a copolymer of ethylene with propylene or a C4-20 α-olefin having a content of ethylene-derived structural units of 20 to 80 wt %. | 03-28-2013 |
20130085231 | Polymer Blends and Films Made Therefrom - Polymer blends and films made therefrom are provided. The polymer blend can include a first polyethylene having a density of less than about 0.940 g/cm | 04-04-2013 |
20130102735 | Cross-Linked Polyolefin Composition - A cross-linked composition obtained by cross-linking a polyolefin composition (I) comprising, all percentages being by weight:
| 04-25-2013 |
20130109812 | POLYETHYLENE COMPOSITION | 05-02-2013 |
20130116385 | Propylene polymer compositions - A propylene polymer composition comprising:
| 05-09-2013 |
20130123430 | QUASI-MELT PROCESSES FOR SINGLE POLYMER COMPOSITES AND PRODUCTS THEREOF - Processes and compounds are described herein for single polymer composites based on a process for making the single polymer composites that includes the steps of heating a matrix material to create polymer melt, cooling the polymer melt to below its T | 05-16-2013 |
20130123431 | HIGH FLOWABILITY LONG CHAIN BRANCHED POLYPROPYLENE - The present invention relates to a polypropylene composition showing a high melt flow rate and high melt strength while maintaining high impact strength. The composition of the present invention is obtainable by using a low molecular weight linear isotactic polypropylene as melt flow enhancer for a high molecular weight polypropylene having a high melt strength and impact strength. The inventive composition could be used for the production of different articles. | 05-16-2013 |
20130123432 | PROPYLENE POLYMER COMPOSITIONS - A propylene polymer composition comprising (percent by weight): A) 68%-80%, of a propylene homopolymer having a Polydispersity Index (P.I.) value of from 4.7 to 10 and MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) from 10 to 30 g/10 min; B) 20%-32%, of a copolymer of propylene containing from 40.1% to 42.5% extremes included of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. comprised between 3 and 6 dl/g and a MFR L from 4 to 12 g/10 min Said Propylene polymer composition being particularly suitable for injection moulded articles having high rigidity and high impact properties at room and at low temperatures. | 05-16-2013 |
20130131274 | HIGH STIFFNESS HIGH IMPACT PROPLYENE IMPACT COPOLYMERS - The present invention relates to polypropylene impact copolymer compositions which exhibit improved stiffness without degrading the impact resistance performance. The polypropylene impact copolymer comprises a matrix and a dispersed phase. The matrix comprises a polypropylene homopolymer or a propylene/alpha-olefin random copolymer which comprises more than 50 wt. % of units derived from propylene monomer. The matrix should have a relatively high crystallinity, preferably 50% or greater. The polypropylene homopolymer or a propylene/alpha-olefin random copolymer preferably has a MWD between 4 and 8, such as typically obtained using Ziegler-Natta catalysts. The dispersed phase in the impact copolymer comprises an ethylene-propylene copolymer which comprises from 45 to 70 wt. % of units derived from an ethylene monomer. Preferably the dispersed phase comprises from 20 to 50 percent by weight of the polypropylene impact copolymer. | 05-23-2013 |
20130137827 | Process for Polymerizing Olefin-Based Polymers Containing High Molecular Weight Fractions in Condensed and Super-Condensed Mode - A process for producing an olefin-based polymer in a polymerization reactor including a fluidized bed, a disengaging section and a neck connecting the bed and disengaging section, at least one monomer, in the gas phase, in the presence of at least one catalyst containing at least two transition metals, one of the at least two transition metals being Ti, at least one cocatalyst, a composition having at least one compound selected from formula (I), and/or at least one compound selected from formula (II): (R1CO | 05-30-2013 |
20130137828 | POLYETHYLENE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM - The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CMv) less than −0.0032 in the log (calculated Mv) versus elution temperature, said CMv calculated in the range of elution temperatures from 70° C. to 90° C. The Mv is the viscosity average molecular weight. | 05-30-2013 |
20130150531 | Functionalized Olefin Polymers - This invention relates to a composition comprising a functionalized C3 to C40 olefin polymer comprising at least 50 mol % of one or more C3 to C40 olefins, and where the olefin polymer, prior to functionalization, has:
| 06-13-2013 |
20130165590 | METHODS FOR IMPROVING MULTIMODAL POLYETHYLENE AND FILMS PRODUCED THEREFROM - A blown film composition including a first high density polyethylene component and a second high density polyethylene component, wherein the blown film contains a mixture of three or more discrete molecular weight distributions, and wherein the second high density polyethylene component has at least one more discrete molecular weight distribution than the first high density polyethylene component. | 06-27-2013 |
20130165591 | POLYOLEFIN COMPOSITIONS HAVING IMPROVED SEALABILITY - Polyolefin compositions comprising, all percentages being by weight: A) from 70 to 97% of a copolymer of propylene with hexene-1 containing from 3 to 9% by weight of recurring units derived from hexene-1, said copolymer having a melting temperature from 125° C. to 143° C.; B) from 3 to 30% of a butene-1 homopolymer or copolymer. | 06-27-2013 |
20130211011 | AUTOMOTIVE INTERIOR ELEMENT - Automotive interior element comprising a polypropylene composition comprising (percent by weight): A) from 60% to 90% of a propylene homopolymer having: i) a polydispersity Index (P.I.) value of from 3.5 to 10.0; ii) a fraction insoluble in xylene at 25° C., higher than 90%; and iii) a MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) from 50 to 200 g/10 min; B) from 10% to 40%; of a copolymer of propylene with from 30% to 60% of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. comprised between 2.5 and 4.0 dl/g; a MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) from 15 to 100 g/10 min and all the three values of carbon emission measured according to VDA 227 (C-emission) are lower than 30.0 μgC/g; wherein the values of carbon emission are measured in the ex reactor propylene composition. | 08-15-2013 |
20130237670 | HIGH-DENSITY POLYETHYLENE COMPOSITIONS AND METHOD OF MAKING THE SAME - The instant invention is a high-density polyethylene composition, method of producing the same, articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm | 09-12-2013 |
20130245201 | LLDPE-LDPE BLOWN FILM BLEND - The LLDPE-LDPE blown film blend is a blown film made from a mixture of unimodal hexene-LLDPE (also referred to as h-LLDPE) and LDPE having a blend ratio between 2%-10% of LDPE added to 98%-90% of h-LLDPE. This blend results in a TD (transverse direction) tear resistance increase by 100% for a composition of between 2%-10% of LDPE with LLDPE. Impact failure energy increases by 20% for the composition of 5% LDPE with 95% h-LLDPE. There is improvement in strength in the TD direction for the composition starting at 10% of LDPE with h-LLDPE. The toughness in the MD (machine direction) direction increases for the compositions of approximately 10% LDPE with h-LLDPE. Moreover, film production of a composition starting at approximately 10% of LDPE with LLDPE requires less energy. | 09-19-2013 |
20130261263 | POLYPROPYLENE COMPOSITION AND MOLDED ARTICLE OF THE SAME - The present invention relates to a polypropylene composition containing: 100 parts by weight of a blending mixture containing 35 to 45% by weight of a polypropylene copolymer having an ethylene content of 4 to 20% by weight, 7 to 12% by weight of high-density polyethylene, 40 to 50% by weight of an ethylene-α-olefin copolymer rubber, and 5 to 10% by weight of a compatibilizer, and 0.05 to 0.1 parts by weight of a flow adjuster. | 10-03-2013 |
20130261264 | BRANCHED SATURATED HYDROCARBON POLYMERS AS EXTENSIONAL RHEOLOGY MODIFIERS WITHOUT IMPACTING SHEAR PROPERTIES - Provided are blends of branched hydrocarbon comb polymers having tailored branching and molecular weight parameters, with substantially linear polymers. Such blends have been found to have improved extensional rheological properties, while maintaining nearly the viscosity of the substantially linear polymers. The blends of the hydrocarbon comb polymers with the substantially linear polymers thus maintain the extrusion processing characteristics of the linear polymer alone, but have improved extensional flow processability, with strain hardening ratios (SHR) greater than 1. The blends are effective in blown film processing. Also disclosed are related methods for improving extensional flow processability using the branched hydrocarbon comb polymers, as well as the branched hydrocarbon comb polymers themselves, including as a property enhancing additive for such substantially linear polymers. | 10-03-2013 |
20130261265 | ETHYLENE-BASED POLYMERS AND PROCESSESS TO MAKE THE SAME - The invention provides an ethylene-based polymer comprising the following properties: A) a MWDconv from 7 to 10; and B) a “normalized LSF” greater than, or equal to, 9.5. | 10-03-2013 |
20130267660 | SOFT HETEROPHASIC PROPYLENE COPOLYMERS - Heterophasic propylene copolymer comprising a) a propylene homo- or copolymer matrix with an MFR 2 of ≧150 g/10 min according to ISO 1133 (230° C., 2.16 kg load) and b) a trimodal elastomeric propylene copolymer dispersed in said matrix, wherein (i) thexylene cold soluble fraction of the heterophasic propylene copolymer at room temperature is present in an amount of 20 to 80 wt % of the of the heterophasic propylene copolymer, (ii) the amorphous phase of the xylene cold soluble fraction of the heterophasic propylene copolymer has an intrinsic viscosity measured according to ISO 1628-1 (at 135° C. in tetraline) of at least 2.5 dl/g (iii) said of the heterophasic propylene copolymer has a flexural modulus lower than 800 MPa according to ISO 178, a melting temperature measured by DSC from 155 to 170° C. and a total ethylene content from 10 to 35 wt %; and a process for its production. | 10-10-2013 |
20130281630 | HETEROPHASIC PROPYLENE COPOLYMERS WITH STIFFNESS/IMPACT/FLOWABILITY BALANCE - Heterophasic propylene copolymer (HECO) comprising: (a) a polypropylene matrix comprising: (a | 10-24-2013 |
20130289212 | POLYOLEFIN RESIN COMPOSITION AND MOLDED ARTICLE CONTAINING THE SAME - There is provided a polyolefin resin composition capable of affording molded articles being superior in tensile elongation at break and impact resistance. The composition includes not less than 1 wt % and less than 80 wt % of a propylene polymer (I) that is a propylene homopolymer or a copolymer of propylene and at least one comonomer, the copolymer having more than 0 wt % and less than 20 wt % of structural units derived from the at least one comonomer, not less than 1 wt % and less than 80 wt % of a propylene copolymer (II) having 20 to 80 wt % of structural units derived from the comonomer and/or an ethylene copolymer (III) having a density of less than 940 kg/m | 10-31-2013 |
20130296494 | RETORTABLE EASY OPENING SEALS FOR FILM EXTRUSION - A composition of matter particularly well suited for use as a peelable seal layer is described. The composition comprises from about 50 to about 85 percent by weight of a first polymer and from 15 to 50 percent of a second polymer. The first polymer is a propylene based polymer characterized by having a melting point of at least 125° C. together with a Comonomer Composition Distribution Breadth (“CCDB”) less than 2. The second polymer is characterized by having an interfacial adhesion with the first polymer of less than 1 lb/inch. | 11-07-2013 |
20130338314 | PROCESS FOR PREPARING ZIEGLER-NATTA PRODUCED POLYETHYLENE BLENDS - A process for preparing a multimodal polyethylene product with at least two different polyethylene resins can include producing a first polyethylene resin in the presence of a Ziegler-Natta catalyst in a reactor. The Ziegler-Natta catalyst used for the production of the first polyethylene resin has an average particle size (D50) of at most 15 μm. The HLMI of the first polyethylene resin is between 0.01 and 5 g/10 min. The process can include separately producing a second polyethylene resin in the presence of a Ziegler-Natta catalyst in a reactor. The MI | 12-19-2013 |
20140005337 | PROPYLENE-ETHYLENE RANDOM COPOLYMER | 01-02-2014 |
20140031496 | MODIFIED POLYMERIC MATERIALS AND METHODS OF MODIFYING POLYMERIC MATERIALS - Methods of forming polymeric articles using plasma treated polymer resins, and orthopedic implants comprising a polymeric article wherein the polymeric article has reactive groups bonded to polymer molecules in an interior region of the polymeric article. | 01-30-2014 |
20140045998 | POLYOLEFIN COMPOSITIONS AND ARTICLES MANUFACTURED THEREFROM - The present invention is a polyolefin composition, which comprises a thermoplastic olefin polymer and a polyethylene. The thermoplastic olefin polymer (TPO) comprises a polypropylene and an olefin copolymer and is present in an amount of about 10 weight percent to about 50 weight percent; the TPO has a density in the range of about 0.85 g/cm | 02-13-2014 |
20140066574 | INJECTION MOLDED ARTICLE, AND METHOD FOR PRODUCING INJECTION MOLDED ARTICLE - Disclosed is an injection molded article made of a resin composition comprising 15 to 40% by mass of ultrahigh molecular weight polyethylene fibers, and 60 to 85% by mass of a thermoplastic resin having a melt flow rate of 70 to 500 g/10 min. measured at a temperature of 230° C. and a load of 21.2 N, and a fusion peak temperature lower than 160° C. measured with a differential scanning calorimeter, where the combined mass of the ultrahigh molecular weight polyethylene fibers and the thermoplastic resin is taken as 100% by mass, wherein the injection molded article satisfies the following requirements: the intrinsic volume resistivity is 1.0×10 | 03-06-2014 |
20140100336 | Fractional Melt Index Polyethylene Composition and Films Made Therefrom - A reactor blend polyethylene composition comprising: from 35 to 70 percent by weight of a first polyethylene component; and a second polyethylene component; wherein the polyethylene resin has a melt index I | 04-10-2014 |
20140100337 | Heterophasic Copolymer and Method for the Preparation Thereof - Methods for preparing an impact copolymer by selecting a continuous phase polymer having a first melt flow rate and selecting a rubber phase polymeric material such that the final melt flow rate of the impact copolymer is within 2 g/10 min of the first melt flow rate. Impact copolymers made from such methods and films and molded articles produced from such impact copolymers are also included. | 04-10-2014 |
20140128549 | IN-SITU REACTOR BLEND OF A ZIEGLER-NATTA CATALYSED, NUCLEATED POLYPROPYLENE AND A METALLOCENE CATALYSED POLYPROPYLENE - Propylene homo- or copolymer composition comprising an in-situ reactor blend of a Ziegler-Natta catalysed, nucleated polypropylene (znPP) and a metallocene catalysed polypropylene (mcPP), in a weight ratio in the range of 6:94 to 50:50 (wt % znPP:wt % mcPP), preferably in the range of 10:90 to 44:56 (wt % znPP:wt % mcPP), having an excellent balance between optical properties, mechanical properties, thermal properties and processing properties; a process for its production and the use of a mixture of a Ziegler-Natta catalyst system and a metallocene catalyst system. | 05-08-2014 |
20140155553 | HDPE Modified Polyethylene Blown Film Compositions Having Excellent Bubble Stability - The present invention relates to polyethylene compositions comprising one or more ethylene polymers and one or more HDPE modifiers, in particular, this invention further relates to polyethylene blends comprising one or more ethylene polymers and one or more HDPE modifiers, wherein the modifier has: 1) a density of greater than 0.94 g/cc; 2) a M | 06-05-2014 |
20140155554 | POLYPROPYLENE COMPOSITION - A polyolefin composition comprising (percent by weight):
| 06-05-2014 |
20140179872 | Branched Polyethylene With Improved Processing and High Tear Films Made Therefrom - This invention relates to inventive ethylene-based copolymers comprising 75.0 wt % to 99.5 wt % of ethylene-derived units and 0.5 wt % to 25.0 wt % of C3 to C20 olefin derived units; the inventive ethylene-based copolymer having: a density in the range of from 0.900 to less than 0.940 g/cm | 06-26-2014 |
20140179873 | POLYETHYLENE BLEND COMPOSITIONS AND FILM - A polymer blend comprising first and second polyethylene copolymers is presented which has good processability, and which when made into film shows good toughness-stiffness balance, reasonable MD tear, as well as good optical properties. | 06-26-2014 |
20140194577 | PROPYLENE IMPACT COPOLYMERS HAVING GOOD OPTICAL PROPERTIES - Propylene impact copolymers (ICPs) are provided which comprise: (a) a matrix phase which comprises from 60 to 95 weight % of a polypropylene polymer containing from 0 to 6 mole % of units derived from one or more alpha-olefins other than propylene, and (b) a dispersed phase which comprises from 5 to 40 weight % of a copolymer derived from a first comonomer which can be either propylene or ethylene together with a second alpha-olefin comonomer. The ICP is further characterized by having a beta/alpha ratio less than or equal to 1.1. The ICPs of the present invention are particularly well suited for applications requiring clear, tough polymers such as thin walled injection molded articles for frozen food packaging applications. | 07-10-2014 |
20140206819 | HETEROPHASIC COPOLYMERS - A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %; the heterophasic polypropylene resin has an MFR2 of 0.01 to 50 g/10 min; the ethylene content of the xylene soluble fraction of the heterophasic polypropylene resin is in the range of at least 20 wt % to less than 50 wt %; the heterophasic polypropylene resin has a notched charpy impact strength at −20 C of at least 25 kJ/m | 07-24-2014 |
20140256883 | HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF MAKING THE SAME - The instant invention is a high-density polyethylene composition, method of producing the same, articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm | 09-11-2014 |
20140275426 | HINGE POLYMER - A polymer suitable for use in a thin film hinge (living hinge) comprising from about 0.1 to about 5 weight % of a C | 09-18-2014 |
20140275427 | NEW POLYETHYLENE - The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is greater than 15, a storage modulus G′ (5 kPa) which is above 3000 and a vinylidene content which is at least 15/100k C, compositions, a process for production of the low density polyethylene, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process, an article, e.g. an extrusion article, and use in extrusion coating. | 09-18-2014 |
20140316069 | PROCESS FOR THE PREPARATION OF HETEROPHASIC PROPYLENE POLYMER COMPOSITIONS - A process for the preparation of propylene polymer compositions comprising from 50 to 90% by weight of a propylene (co)polymer fraction insoluble in xylene at 25° C., and from 10 to 50% by weight of an ethylene copolymer fraction soluble in xylene at 25° C., said process comprising:
| 10-23-2014 |
20140316070 | PROPYLENE COPOLYMER FOR INJECTION MOLDED ARTICLES OR FILMS - Propylene copolymer having a melt flow rate MFR | 10-23-2014 |
20140336334 | POLYOLEFIN COMPOSITIONS - A polyolefin compositions comprising:
| 11-13-2014 |
20140343230 | INCREASED OUTPUT OF A FILM EXTRUSION PROCESS - The invention relates to a process for preparing polypropylene films, a polypropylene film obtained by such a process, use of said polypropylene film as packaging material, an article comprising said polypropylene film as well as to the use of a polypropylene composition to improve the processability of a film production process. | 11-20-2014 |
20140357799 | COMPOSITIONS AND ARTICLES FORMED FROM THE SAME - The invention provides a composition comprising at least the following: A) an ethylene/α-olefin interpolymer; B) an olefin-based polymer; and C) a crosslinking agent; and wherein the ethylene/α-olefin interpolymer of component A) has the following properties: i) has a density greater than, or equal to, 0.850 g/cc; ii) a molar ratio of “vinyl to total unsaturation” greater than, or equal to, 1/10; iii) an 110/12 ratio from 6.2 to 40. | 12-04-2014 |
20140371397 | HIGH-DENSITY POLYETHYLENE FOR CAPS AND CLOSURES - A high-density polyethylene (HDPE) can be adapted for the manufacture of caps and closures. The caps and closures can be used as screw-on caps for carbonated or still drinks. The high-density polyethylene can have a density of at least 940 kg/m | 12-18-2014 |
20150018491 | ETHYLENE POLYMER COMPOSITION AND SHAPED ARTICLE OF THE SAME - The present invention provides an ethylene polymer composition having a particularly high formability and having an excellent mechanical strength, a shaped article formed of such an ethylene polymer, and a film and multilayer film having a particularly excellent blocking resistance. An ethylene polymer composition (γ) according to the present invention includes a specific ethylene polymer (α) that is a copolymer of ethylene and an α-olefin having 4 to 10 carbon atoms and an ethylene polymer (β) that is a copolymer of ethylene and an α-olefin having 4 to 10 carbon atoms but different from the ethylene polymer (α), and weight fraction [Wα] of the ethylene polymer (α) is in the range of not less than 0.1 and not more than 0.9, and weight fraction [Wβ] of the ethylene polymer (β) is in the range of not less than 0.1 and not more than 0.9 (the sum of the Wα and the Wβ is 1.0). | 01-15-2015 |
20150018492 | POLYPROPYLENE COMPOSITION WITH IMPROVED SEALING AND THERMAL PROPERTIES - The present invention relates to a polypropylene composition comprising comonomer units derived from ethylene in an amount of from 0.5 wt % to 25 wt %, and from at least one C | 01-15-2015 |
20150031838 | METALLIC ACRYLATE SALTS TO INCREASE POLYMER MELT STRENGTH - A composition can include a polyolefin, a styrenic polymer, or a polylactic acid. The composition can include a metallic acrylate salt. A method of making a composition can include melt mixing a polyolefin, a styrenic polymer, or a polylactic acid with a metallic acrylate salt. | 01-29-2015 |
20150045513 | Polyolefin Adhesive Compositions and Methods for Preparing the Same - A blended multimodal polymer product is disclosed that comprises a first polymer, wherein the first polymer is a homopolymer of propylene or a propylene copolymer having an ethylene or a C | 02-12-2015 |
20150045514 | PROPYLENE POLYMER COMPOSITIONS - Propylene polymer compositions comprising: | 02-12-2015 |
20150051350 | 1-BUTENE COPOLYMERS COMPOSITIONS FOR EXTRUDED PROFILES - Extruded or molded profiles comprising a polyolefin composition consisting of 85% by weight or more of a copolymer of 1-butene with ethylene (A) having an ethylene copolymerized content up to 18% by mol, and having Mw/Mn lower than 3, hardness shore A (measured according to ISO 868) lower than 90, no melting point (TmII) detectable at the DSC after cancelling the thermal history, melting enthalpy (ΔHf), measured by DSC after 10 days of aging at room temperature, comprised between 4 and 15 J/g; and up to 15% by weight of a propylene copolymer or a composition of copolymers of propylene (B) having a melting point from about 126° C. to 200° C., isotactic index greater than 90%. | 02-19-2015 |
20150051351 | PROPYLENE POLYMER COMPOSITIONS - Propylene polymer compositions comprising:
| 02-19-2015 |
20150065656 | Ethylene-Based Polymers and Articles Made Therefrom - Polymer compositions that include an ethylene-based polymer and a broad molecular weight distribution propylene-based polymer having a melt strength of 20.0 cN to 200.0 cN; and optionally, a propylene-based elastomer are described. The invention also includes articles, such as films, produced from such compositions and methods of making such compositions and methods of improving melt strength. | 03-05-2015 |
20150065657 | ROTOMOLDING RESIN - Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C | 03-05-2015 |
20150080533 | PRESSURE RELIEF FOR MULTIPLE POLYOLEFIN POLYMERIZATION REACTORS - A polyolefin manufacturing system and method including polymerizing olefin in a first reactor to form a polyolefin, transferring the polyolefin to a second reactor, polymerizing olefin in the second reactor, and discharging a product polyolefin from the second reactor. The system and method including operating the first reactor with a first reactor pressure relief system and the second reactor with a second reactor pressure relief system, both pressure relief systems to discharge to a flare system, and wherein a relief instrumented system (RIS) is configured to direct at least one process interlock that mitigates an excess reaction scenario as an overpressure relief scenario. | 03-19-2015 |
20150087786 | POLYPROPYLENE RESIN COMPOSITION AND MOLDED ARTICLE - A polypropylene resin composition affords a molded article good in rigidity, impact resistance, and tensile elongation at break. This composition contains 75-98 wt % of a propylene-based material (A) and 2-25 wt % of a propylene-ethylene random copolymer (B). Material (A) contains 50-100 wt % of a polymeric material (A-1) produced by multistage polymerization and composed of a propylene homopolymer component (i) and a propylene-ethylene random copolymer component (ii), and 0-50 wt % of a propylene homopolymer (A-2). The content of (i) in material (A-1) is 55-90 wt %, and the content of (ii) is 10-45 wt %, (ii) in material (A-1) contains >40 wt % but ≦80 wt % of ethylene units and ≧20 wt % but <60 wt % of propylene units, and the content of (ii) in material (A) is 5-35 wt %. Copolymer (B) contains 88-95 wt % of propylene units and 5-12 wt % of ethylene units and has an MFR of 0.5-10 g/10 minutes measured at 230° C. and a load of 2.16 kgf. | 03-26-2015 |
20150087787 | POLYPROPYLENE BLENDS AND PROCESSES FOR PRODUCING POLYMERIC COMPOSITIONS - Polymer blends of polypropylene homopolymer and propylene-α-olefin interpolymer. Processes for producing polymeric compositions comprising control-cooling heated blends of polypropylene and propylene-α-olefin interpolymer. Such polymeric compositions can be employed in forming coated wires and cables. | 03-26-2015 |
20150112026 | MATERIAL COMPOSITION HAVING REDUCED FRICTION COEFFICIENT USED FOR MEDICAL TUBES - The invention relates to certain mixtures made of PE and COC, in particular for use in medical materials, so as to reduce the frictional forces. | 04-23-2015 |
20150133608 | MOULDED ARTICLE WITH IMPROVED STRESS WHITENING - The present invention relates to a moulded article comprising a polypropylene composition, wherein the polypropylene composition comprises comonomer units derived from ethylene in an amount of from 0.5 wt % to 35 wt %, and from at least one C | 05-14-2015 |
20150141579 | ENHANCED ESCR BIMODAL ROTOMOLDING RESIN - The present disclosure provides a resin suitable for use in rotational molding having an environmental stress crack resistance of greater than 1000 hours. The resin has a density from 0.937 to 0.942 g/cm | 05-21-2015 |
20150148490 | POLYOLEFIN COMPOSITION - The instant invention provides a polyolefin composition suitable for packaging applications, films, multilayer structures and packaging devices made therefrom. The polyolefin composition according to the present invention comprises: an ethylene/α-olefin interpolymer composition comprising (a) from 50 to 75 percent by weight of a first ethylene/α-olefin copolymer fraction having a density in the range of 0.894 to 0.908 g/cm | 05-28-2015 |
20150148491 | POLYOLEFIN COMPOSITION - The instant invention provides a polyolefin composition suitable for injection molding applications, and method of making such injection molded articles. The polyolefin composition suitable for injection molding applications comprises: an ethylene/α-olefin interpolymer composition comprising: (a) from 25 to 50 percent by weight of a first ethylene/α-olefin copolymer fraction having a density in the range of from 0.924 to 0.937 g/cm | 05-28-2015 |
20150148492 | High Performance Cast Power Stretch Films With Enhanced Application and End-Use Properties - A stretch film including at least a first layer and a second layer, in which the first layer includes a metallocene linear low density polyethylene (m-LLDPE) with incorporated long chain branching resin and a lower density m-LLDPE resin; and the second layer includes a lower melt index m-LLDPE resin. | 05-28-2015 |
20150299441 | Process for Preparing Ziegler-Natta Produced Polyethylene Blends - A process for preparing a multimodal polyethylene product with at least two different polyethylene resins includes producing a first polyethylene resin in the presence of a Ziegler-Natta catalyst in a reactor. The Ziegler-Natta catalyst used for the production of the first polyethylene resin has an average particle size (D50) of at most 15 μm. The process includes separately producing a second polyethylene resin in the presence of a Ziegler-Natta catalyst in a reactor. The process includes physically blending together the first and second polyethylene resins to produce a multimodal polyethylene product. | 10-22-2015 |
20150299445 | PROPYLENE-BASED TERPOLYMERS COMPOSITION FOR PIPES - A polyolefin composition comprising: | 10-22-2015 |
20150307699 | Propylene Polymers - This invention relates to propylene polymers comprising at least 50 mol % propylene, said polymers having: a) a melt flow rate (MFR, ASTM 1238, 230° C., 2.16 kg) of 10 dg/min to 25 dg/min; b) a Dimensionless Stress Ratio/Loss Tangent Index R | 10-29-2015 |
20150307700 | POLYOLEFIN COMPOSITION - A polyolefin composition comprising:
| 10-29-2015 |
20150315371 | PELLET MIXTURE, CARBON FIBER-REINFORCED POLYPROPYLENE RESIN COMPOSITION, MOLDED BODY, AND METHOD FOR PRODUCING PELLET MIXTURE - A mixture of pellets of carbon fiber-reinforced polypropylene resins and a method for producing such a mixture are described, the mixture exhibiting excellent strength and forming a composition and a molded body, wherein the pellet mixture contains: pellets (X), each of which contains carbon fibers (C) and a polypropylene resin (A) that is not substantially modified with an acid; and pellets (Y), each of which contains an acid-modified polypropylene resin (B). | 11-05-2015 |
20150322249 | PROCESS FOR TRANSITIONING - The present invention relates to a process for transitioning from the production of a first polymer to the production of a second polymer in a gas phase fluidised bed or stirred bed reactor, said process comprising the steps of: a) Conducting a first polymerisation reaction in the reactor using a first polymerisation catalyst system to produce a first polymer, b) Stopping the first polymerisation reaction and removing at least the majority of the polymer in the reactor, c) Introducing into the reactor a seed-bed comprising at least 50 ppm of contaminants, wherein the seedbed has been maintained under at least 50 ppm but less than 500 ppm of contaminants during storage d) Treating the seed-bed in the reactor to reduce the amount of contaminants, e) Conducting a second polymerisation reaction in the reactor to produce a second polymer. | 11-12-2015 |
20150322250 | PROPYLENE-ETHYLENE COPOLYMER RESIN COMPOSITION AND MOULDED ARTICLE, FILM AND SHEET THEREOF - A propylene-ethylene copolymer resin composition including: 97 to 65 parts by weight of a propylene polymer (A) produced with a metallocene catalyst and 3 to 35 parts by weight of a propylene-ethylene copolymer (B). The copolymer (B) includes: 65 to 95% by weight of a propylene polymer component (B1) and 5 to 35% by weight of a propylene-ethylene copolymer component (B2). | 11-12-2015 |
20150322303 | Polyolefin Adhesive Compositions - A multi-modal polymer blend for use in an adhesive composition comprising at least two compositionally different propylene-based polymers. The multi-modal polymer blend has a Mw of about 10,000 g/mol to about 150,000 g/mol. When subjected to Temperature Rising Elution Fractionation, the multi-modal polymer blend exhibits a first fraction that is soluble at −15° C. in a hydrocarbon solvent, such as xylene or ortho-dichlorobenzene, the first fraction having an isotactic (mm) triad tacticity of about 70 mol % to about 90 mol %; and a second fraction that is insoluble or less soluble than the first fraction at −15° C. in the hydrocarbon solvent, the second fraction having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %. | 11-12-2015 |
20150329711 | POLYETHYLENE COMPOSITION HAVING HIGH MECHANICAL PROPERTIES - Polyethylene composition with improved balance of mechanical and optical properties, comprising (all percentages being by weight):
| 11-19-2015 |
20150344681 | A POLYOLEFIN COMPOSITION - The instant invention provides a polyolefin composition suitable for injection molding applications, and method of making such injection molded articles. The polyolefin composition suitable for injection molding applications comprises: an ethylene/α-olefin interpolymer composition comprising: (a) from 25 to 50 percent by weight of a first ethylene/α-olefin copolymer fraction having a density in the range of from 0.924 to 0.937 g/cm | 12-03-2015 |
20150376358 | BIAXIALLY-STRETCHED FILM AND ETHYLENE POLYMER COMPOSITION - Provided is a biaxially-stretched film wherein the biaxial stretching is possible in a broader temperature range and which is excellent in thickness accuracy, and an ethylene polymer composition serving as a raw material of the film. The biaxially-stretched film of the present invention is obtained from an ethylene polymer composition (E) including a specific ethylene polymer component (A) containing 20 to 100 wt % of an ethylene polymer (a) being a copolymer of ethylene and a C4-10 α-olefin and having specific melt flow rate and density, and an ethylene polymer component (B) being another copolymer of ethylene and a C4-10 α-olefin, wherein a weight fraction [W | 12-31-2015 |
20160002448 | ENHANCED ESCR BIMODAL ROTOMOLDING RESIN - The present disclosure provides a resin suitable for use in rotational molding having an environmental stress crack resistance of greater than 1000 hours. The resin has a density from 0.937 to 0.942 g/cm | 01-07-2016 |
20160060407 | PROPYLENE BASED RESIN COMPOSITION AND USE THEREOF - Means for solving the problems | 03-03-2016 |
20160068700 | LOW DENSITY ETHYLENE-BASED POLYMER COMPOSITIONS WITH GOOD MELT STRENGTH AND HIGH DENSITY - The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process comprising at least one autoclave reactor, and a second ethylene-based polymer, formed by a high pressure, free-radical polymerization process comprising at least one autoclave reactor, such composition comprising the following properties: A) a melt index (I2) from 2.5 to 10 g/10 min; B) a density from 0.920 to 0.935 g/cc; and wherein the second polymer is present in an amount from 5 to 95 weight percent, based on the sum of the weight of the first polymer and the second polymer; and wherein the density of the of the second polymer is greater than the density of the first polymer, and wherein the first polymer has a melt index I2 greater than 2.5 g/10 min | 03-10-2016 |
20160083534 | IMPACT-MODIFIED INJECTION MOLDED BODY AND METHOD FOR THE PRODUCTION THEREOF - A molded body may comprise a thermoplastic matrix comprising a first polymeric material, a second polymeric material distributed in the thermoplastic matrix, and a third polymeric material enveloped by the second polymeric material. The first polymeric material, the second polymeric material, and the third polymeric material are compounded together. The first polymeric material may have a first molecular weight and a first polarity. The second polymeric material may have a second molecular weight different from the first molecular weight and a second polarity different from the first polarity. The third polymeric material may comprise a recycled material. | 03-24-2016 |
20160083568 | LOW DENSITY ETHYLENE-BASED COMPOSITIONS WITH IMPROVED MELT STRENGTH, OUTPUT, AND MECHANICAL PROPERTIES - The invention provides a composition comprising the following: A) a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs)/Mw(GPC)<2.2; and b) a MS versus I2 relationship: MS≧C×[(I2) | 03-24-2016 |
20160108185 | ROTOMOLDED ARTICLES - This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y | 04-21-2016 |
20160108186 | CAPS AND CLOSURES - This disclosure relates to caps and closures manufactured from an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y | 04-21-2016 |
20160108218 | DILUTION INDEX - This disclosure relates to ethylene interpolymer compositions. Specifically, ethylene interpolymer products having: a Dilution Index (Y | 04-21-2016 |
20160137792 | FIBER-REINFORCED COMPOSITE - The present invention relates to a fiber-reinforced composite (FR-C), an automotive article comprising the fiber-reinforced composite (FR-C) as well as the use of the fiber-reinforced composite (FR-C) for automotive articles and a process for the preparation of the fiber-reinforced composite (FR-C). | 05-19-2016 |
20160145426 | MODIFIED HETEROPHASIC POLYOLEFIN COMPOSITION - A heterophasic polymer composition comprises a propylene polymer phase, an ethylene polymer phase, and a compatibilizing agent. The compatibilizing agent is a compound comprising at least one moiety conforming to the structure of Formula (I) | 05-26-2016 |
20160152810 | HETEROPHASIC COPOLYMER | 06-02-2016 |
20160185945 | PROPYLENE-ETHYLENE COPOLYMER RESIN COMPOSITION AND MOULDED ARTICLE, FILM AND SHEET THEREOF - A propylene-ethylene copolymer resin composition including: 97 to 65 parts by weight of a propylene-ethylene copolymer (D) produced with a metallocene catalyst and having properties (D-i) to (D-ii) and 3 to 35 parts by weight of a propylene-ethylene copolymer (B) having properties (B-i) to (B-ii). | 06-30-2016 |
20160185946 | HIGH FLOW POLYOLEFIN COMPOSITION WITH HIGH STIFFNESS AND TOUGHNESS - The present invention relates to a polyolefin composition comprising two heterophasic propylene copolymers which differ in the intrinsic viscosity of their xylene soluble fractions. | 06-30-2016 |
20160194464 | A POLYOLEFIN COMPOSITION | 07-07-2016 |
20160194486 | HIGH FLOW POLYOLEFIN COMPOSITION WITH HIGH STIFFNESS AND TOUGHNESS | 07-07-2016 |
20160200904 | Polyethylene for Injection Stretch Blow Molding Applications | 07-14-2016 |
20160376429 | RESIN COMPOSITION AND MELT BAG - Melt bags of the invention are molten uniformly at temperatures lower than melting operation temperatures in the product manufacturing and do not remain unmolten in the final products. The melt bags have high storage stability and excellent mechanical properties. Resin compositions of the invention are suited to give such melt bags. | 12-29-2016 |
20170233507 | Polyethylene Polymers, Films Made Therefrom, and Methods of Making the Same | 08-17-2017 |
20170233512 | ETHYLENE COPOLYMERS PRODUCED WITH SINGLE SITE CATALYST | 08-17-2017 |
20180022905 | HDPE | 01-25-2018 |
20180022909 | COMPOSITION OF POLYCARBONATE AND POLYPROPYLENE BLENDS | 01-25-2018 |
20190144573 | Olefin Polymerization Processes | 05-16-2019 |
20190144581 | VERY LOW DENSITY POLYETHYLENE PRODUCED WITH SINGLE SITE CATALYST | 05-16-2019 |
20190144583 | BI- OR MULTIMODAL POLYETHYLENE TERPOLYMER WITH ENHANCED RHEOLOGICAL PROPERTIES | 05-16-2019 |