BOREALIS TECHNOLOGY OY Patent applications |
Patent application number | Title | Published |
20150187464 | Semiconductive Polyolefin Composition - A semiconductive polyolefin composition comprising (i) up to 80 wt. % of a polyolefin (I), (ii) carbon black, and (iii) up to 60 wt. % of a polymer (II) having a melting point of not less than 100° C., wherein the polyolefin (I) comprises two different ethylene copolymers: a first ethylene copolymer and second ethylene copolymer; wherein the first ethylene copolymer comprises polar group containing co-monomers in the amount of 3.5 mol % or less; and wherein the second ethylene copolymer comprises silane group containing co-monomers in the amount of 0.7 mol % or less. | 07-02-2015 |
20140109975 | POLYOLEFIN COMPOSITION WITH INCREASED RESISTANCE TO CIO2-CONTAINING WATER - The present invention relates to a polyolefin composition comprising a polyolefin base resin and an antioxidant, characterized in that said polyolefin composition has a lifetime of at least 200 h in a test measuring the resistance against ClO | 04-24-2014 |
20130341066 | Polyolefin Composition for Medium/High/Extra High Voltage Cables with Improved Electrical Breakdown Strength - This application relates to a polyolefin composition comprising a polyolefin and an aromatic compound. The polyolefin composition can be used in producing medium and high voltage cables with improved electrical breakdown strength. | 12-26-2013 |
20130323412 | EQUIPMENT AND PROCESS FOR PRODUCING POLYMER PELLETS - The present invention relates to an equipment and method for producing polymer pellets which comprise one or more polymer components and one or more further components, wherein in said process at least one of said one or more further components is incorporated into pellets by applying a liquid, which comprises said at least one component, onto said pellets. | 12-05-2013 |
20130214034 | METHOD AND APPARATUS FOR COATING PIPES - Method and apparatus for coating a pipe or a pipe section with a layer of at least one polymer. The method includes providing the pipe or the pipe section having an outer surface defining the periphery of the pipe or the pipe section; applying on the outer surface of the pipe or pipe section a layer of at least one polymer material in melt stage using a nozzle, which is mounted on a carriage capable of travelling along the periphery of the pipe or the pipe section; and moving the carriage along at least a part of the periphery during the application of the polymer material to form a layer on the surface of the pipe or the pipe section that is particularly useful for coating field joints in pipelines. | 08-22-2013 |
20130178579 | LOW TEMPERATURE PE TOPCOAT - The present invention concerns the use of a particular ethylene polymer for providing coating compositions displaying improved values for elongation at break at −45° C., rendering coating compositions prepared in accordance with the present invention suitable for low temperature applications. | 07-11-2013 |
20130018158 | CATALYST WITH LOW SURFACE AREA - Catalyst in form of solid particles, wherein the particles—have a specific surface area of less than 20 m | 01-17-2013 |
20120302696 | GLASS FIBER REINFORCED POLYPROPYLENE - The present invention concerns a glass fiber reinforced polypropylene composition as well as articles formed from this composition, wherein the composition, comprises a) More than 15-wt % glass fibers, and b) a specific heterophasic polypropylene composition with an at least bimodal disperse phase. | 11-29-2012 |
20120302680 | PROPYLENE POLYMERS WITH IMPROVED PROPERTIES - The invention relates to novel propylene polymers with improved properties especially with improved stiffness and impact strength comprising propylene homopolymers or propylene block copolymers with 90.0 to 99.9 wt % propylene and 0.1 to 10 wt % α-olefins with 2 or 4 to 18 carbon atoms, or mixtures thereof, wherein the propylene homopolymers or propylene block copolymers are β-nucleated propylene polymers, whereby the β-nucleated propylene homopolymers have an Irτ≧0.98 and the values for tensile modulus and Charpy impact strength as specified herein. The β-nucleated propylene block copolymers are polymers having an IRτ of the propylene homopolymer block of ≧0.98 and the values for tensile modulus and Charpy impact strength as also specified herein. The propylene polymers with an improved property spectrum are suitable for producing molded parts in a pipe system, such as pipes and fittings, inspection chambers, pipe ducting systems, extrusion or compression molded sheets and the like. | 11-29-2012 |
20120259079 | CATALYST PREPARATION USING H2 - The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having improved polymerization properties due to the use of H | 10-11-2012 |
20120252993 | CATALYSTS - A complex containing a ligand of formula (I): | 10-04-2012 |
20120171404 | POLYETHYLENE COMPOSITION FOR THE PRODUCTION OF PEROXIDE CROSSLINKED POLYETHYLENE - The invention relates to a polyethylene composition for the production of peroxide crosslinked polyethylene and a method for the production thereof. The invention further relates to the use of such a polymer composition and to a peroxide crosslinked polyethylene pipe made from the polyethylene composition. | 07-05-2012 |
20110293869 | HIGH MELT FLOW RANDOM POLYPROPYLENE COPOLYMER - The present invention provides polymer compositions, comprising a random propylene copolymer having an MFR | 12-01-2011 |
20110245446 | Catalyst system for polypropylene copolymers - Catalyst system comprising
| 10-06-2011 |
20110218293 | NOVEL PROPYLENE POLYMER COMPOSITIONS - The invention relates to propylene polymer compositions comprising 50-70 wt % of a propylene homo- or copolymer, 5-20 wt % of a first elastomeric ethylene-propylene copolymer, 5-25 wt % of a second elastomeric ethylene-propylene copolymer and 5-30 wt % of an ethylene polymer. The propylene polymer compositions are suitable for moulding and they have low haze and a good impact strength/stiffness balance with good impact strengths at low temperatures. | 09-08-2011 |
20110196095 | Flexible Polypropylene With High Impact Strength - The present invention is directed to a first polypropylene composition comprising
| 08-11-2011 |
20110196078 | NOVEL PROPYLENE POLYMER BLENDS - The invention relates to propylene polymer blends comprising 70-92 wt % of a propylene homopolymer, 5-15 wt % of an elastomeric ethylene-propylene copolymer, 3-15 wt % of a linear low density polyethylene and an a-nucleating agent. The propylene polymer blends have an excellent impact strength/stiffness balance and optical properties. They are especially suitable for thermoforming and extrusion blow moulding. | 08-11-2011 |
20110178221 | FLAME RETARDANT POLYETHYLENE COMPOSITION COMPRISING POLYPROPYLENE - The present invention relates to a flame retardant polymer composition comprising (A) a polyethylene, (B) a silicone-group containing compound, (C) an inorganic filler material, and (D) a polypropylene in an amount of 0.1 to 10 wt. % with respect to the total composition, to an article comprising said flame retardant polymer composition, in particular to a wire or cable comprising a layer made of said flame retardant composition and to the use of said flame retardant polymer composition for the production of a layer of a wire or cable. Furthermore, the invention relates to the use of a polypropylene in the production of a flame retardant layer for a wire or cable as a processing aid. | 07-21-2011 |
20110132864 | ARTICLE - The present invention provides a cap or closure comprising a polypropylene composition, wherein said composition comprises: (i) a random propylene ethylene copolymer having an ethylene content of 3.3-7% wt, and (ii) an additive selected from an antistatic agent, an antioxidant, an acid scavenger and a nucleating agent. | 06-09-2011 |
20110132478 | INDUSTRIAL POLYOLEFIN PIPING SYSTEM - Industrial polyolefin piping system with improved stiffness, impact strength for use at high service temperature, comprising single or multilayer pipes, fitting, chambers, valves and vessels, consisting of β-nucleated propylene homopolymers with an IRτ≧0.98 having a tensile modulus ≧1500 MPa, a Charpy impact strength, notched, at +23° C.≧30 kJ/m | 06-09-2011 |
20110123751 | PROPYLENE POLYMER PIPES FOR PIPELINES - Single- or multilayer propylene polymer pipes and pipe components for pipelines with improved resistance to rapid crack propagation made from a propylene homopolymer with a melt index of 0.05 to 10 g/10 min at 230° C./2.16 kg or propylene block copolymer from 90.0 to 99.9 wt % of propylene and 0.1 to 10.0 wt % of a α-olefins with 2 or 4 to 18 carbon atoms with a melt index of 0.05 to 8 g/10 min at 230° C./2.16 kg or mixtures thereof, wherein the propylene homopolymers or propylene block copolymers are β-nucleated propylene polymers, and the propylene polymer pipes for pipelines made from the β-nucleated propylene homopolymers have a rapid crack propagation characterized by a critical temperature of −5 to +40° C. and a critical pressure≧3 bar below the critical temperature and the propylene polymer pipes made from β-nucleated propylene block copolymers have a rapid crack propagation characterized by a critical temperature of −25 to 0° C. and a critical pressure≧3 bar below the critical temperature. The propylene polymer pipes with improved resistance to rapid crack propagation are suitable for the transportation of fluids and pressurized fluids such as natural gas, water and the like. | 05-26-2011 |
20110123745 | Pressureless Polymer Pipe, A Compositon Therefore, And A Process For Preparing It - A pressureless polymer pipe, a composition therefore, and a process of preparing the composition are described. The pipe is characterised in that the polymer comprises a propylene polymer composition where the propylene base polymer is a heterophasic propylene copolymer having a matrix of a propylene homopolymer and a dispersed phase of an elastomeric copolymer of propylene and at least one olefin comonomer; has a comonomer content of 2-7% by weight, based on the weight of the heterophasic propylene copolymer; has a melt flow rate MFR (2/230), determined according to ISO 1133 C4, of 0.1-2.0 g/10 min; has a broad molecular weight distribution as defined by its rheology shear thinning index, SHI | 05-26-2011 |
20110120587 | PROCESS FOR COATING A PIPE WITH HIGH THROUGHPUT USING MULTIMODAL ETHYLENE COPOLYMER, AND COATED PIPES OBTAINED THEREOF - The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR | 05-26-2011 |
20110111152 | Multimodal Polyethylene Resin for Pipe Made by a Single-site Catalyst - The present invention relates to a polyethylene composition comprising a polyethylene base resin, which comprises
| 05-12-2011 |
20110061893 | WATER TREE RETARDING COMPOSITION - The present invention relates to a crosslinkable polymer composition, comprising (i) an unsaturated polyolefin having a total amount of carbon-carbon double bonds/1000 carbon atoms of more than 0.37, and (ii) at least one ether and/or ester group containing additive selected from the group consisting of polyethylene glycol, a glycerol ester compound, polypropylene glycol, an amido group containing fatty acid ester, ethoxylated and/or propoxylated pentaerythritol, an alpha-tocopherol ester, an ethoxylated and/or propoxylated fatty acid, and derivatives thereof. | 03-17-2011 |
20110040061 | SHORT-CHAIN BRANCHED POLYPROPYLENE - A short-chain-branched polypropylene having xylene solubles of at least 0.5 percent by weight is provided. In certain embodiments the polypropylene has a strain hardening index of at least 0.15 as measured by a deformation rate of 1.00 s | 02-17-2011 |
20110034656 | ALPHA-OLEFIN HOMO- OR COPOLYMER COMPOSITIONS - The invention is directed an alpha-olefin homo- or copolymer composition comprising at least one (i) alpha-olefin homo- or copolymer component, wherein the alpha-olefin homo- or copolymer composition comprises a decreased amount of C6-C15-oligomers. | 02-10-2011 |
20110028665 | POLYMER - A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m | 02-03-2011 |
20110015330 | Polyolefin Composition Comprising Silicon-Containing Filler - The present invention relates to a polyolefin composition comprising a polyolefin base resin comprising an olefin homo- or copolymer (A) having hydrolysable silicon-containing groups, and an inorganic mineral filler (B) containing on its surface silanol groups or precursors thereof. | 01-20-2011 |
20110009257 | OLEFIN POLYMERISATION CATALYST - The present invention relates to particulate olefin polymerisation catalyst components comprising an alkaline earth metal, a compound of a transition metal and an electron donor, characterized in that the catalyst particle size distribution of the catalyst component is essentially monomodal and has a SPAN value below 1.2, where SPAN is defined as: (Particle diameter at 90% cumulative size)-(Particle diameter at 10% cumulative size)/(Particle diameter at 50% cumulative size). The particulate olefin polymerisation catalyst components of the present invention are provided by a process which comprises preparing a solution of a complex of an alkaline earth metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof in an organic liquid reaction medium, reacting said complex in the solution form with a compound of a transition metal to produce a dispersion, wherein the dispersed phase predominantly contains the alkaline earth metal in said complex, and solidifying said dispersed phase to obtain said catalyst component, and is characterized in that a second organic liquid medium is added to the reactor after mixing the alkaline earth metal complex with the transition metal compound. | 01-13-2011 |
20110003933 | ACTIVATED CARBON AS A MEANS TO REDUCE TASTE AND ODOR FROM PLASTIC MATERIALS - The present invention relates to a polyolefin composition comprising: a) an olefin homo- or copolymer (A), and b) activated carbon (B) as a taste and/or odour reducing agent, to the use of such a polyolefin composition, and to a pipe material and pipe having reduced taste and/or odour development comprising the above polyolefin composition. | 01-06-2011 |
20110003105 | Coated Pipe and Propylene Polymer Composition Therefor - The invention relates to a coated pipe comprising a core, an adhesion layer coated on the core and an outer coating layer coated on the adhesion layer, wherein at least the adhesion layer comprises a propylene polymer composition comprising: (A) a propylene homo- or copolymer, and (B) an elastomeric component and to the use of such a propylene polymer composition for coating a pipe. | 01-06-2011 |
20100331490 | Antiblocking Agent Using Crosslinkable Silicon-Containing Polyolefin - The present invention relates to a polyolefin composition comprising an olefin homo- or copolymer (A) in an amount of 90 wt. % or more, and an olefin homo- or copolymer (B) comprising hydrolysable silicon-containing groups, wherein olefin homo- or copolymer (B) is present in the composition in an amount of from 0.01 to 2 wt. %. | 12-30-2010 |
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 |
20100317791 | GLASS FIBER REINFORCED POLYPROPYLENE - The present invention concerns an improved glass fiber reinforced polypropylene composition as well as articles formed from this composition, wherein the composition, comprises a) More than 15-wt % glass fibers, and b) a specific heterophasic polypropylene composition with an at least bimodal disperse phase. | 12-16-2010 |
20100305286 | CATALYSTS - A complex comprising a ligand of formula (I), wherein each R | 12-02-2010 |
20100305246 | PROPYLENE POLYMERS WITH IMPROVED PROPERTIES - The invention relates to novel propylene polymers with improved properties especially with improved stiffness and impact strength comprising propylene homopolymers or propylene block copolymers with 90.0 to 99.9 wt % propylene and 0.1 to 10 wt % α-olefins with 2 or 4 to 18 carbon atoms, or mixtures thereof, wherein the propylene homopolymers or propylene block copolymers are β-nucleated propylene polymers, whereby the β-nucleated propylene homopolymers have an IRτ≧0.98, a tensile modulus ≧1500 MPa at +23° C. and a Charpy impact strength, ≧3 kJ/m | 12-02-2010 |
20100292410 | Polypropylene Copolymer - The application provides propylene polymer including at least 80 mol % units derived from propylene and less than 0.5 mol % units derived from a tertiary diene wherein said tertiary diene is not a 1,4-diene, said polymer including 1-50 tertiary double bonds per 10,000 carbon atoms of the main chain of said polymer. The polymer may be obtained using a Ziegler Natta catalyst. The application further provides a long chain branched propylene polymer obtainable from the afore-mentioned propylene polymer including tertiary double bonds. | 11-18-2010 |
20100292404 | CROSSLINKABLE BLEND FOR THE PRODUCTION OF A LAYERED ARTICLE - The present invention relates to a process for the preparation of an article, comprising the following steps: (a) providing a component (i) which comprises a blend of (a1) an unsaturated first polyolefin having a certain total amount m1 of carbon-carbon double bonds/1000 carbon atoms, (a2) a crosslinking agent, (a3) optionally an unsaturated low molecular weight compound having a certain total amount m2 carbon-carbon double bonds/1000 carbon atoms, (b) providing a component (ii) which comprises a second polymer having a certain total amount m3 of carbon-carbon double bonds/1000 carbon atoms, wherein m1, m2 and m3 satisfy a certain relationship, (c) forming a blend of component (i) and component (ii) wherein the weight ratio of the component (i) to the component (ii) is within the range of 10:90 to 99:1, (d) applying one or more layers of the blend onto a substrate. | 11-18-2010 |
20100286332 | COLOURED POLYPROPYLENE COMPOSITION HAVING A HIGH CONTENT OF BETA-MODIFICATION - The invention relates to a coloured β-nucleated polypropylene composition having a high content of β-modification, wherein the polypropylene composition comprises at least one β-nucleating agent and an inorganic blue pigment and an inorganic yellow pigment. | 11-11-2010 |
20100282591 | Removal of Hydrocarbons from an Aqueous Stream - The present application concerns a process for the removal of hydrocarbons from an aqueous stream, which process may include conducting a phenol-containing water stream into a separation column, separating the phenol-containing water in the column using heat to form an overhead portion and a bottoms portion, and collecting the overhead portion as well as the bottoms portion. Further, the process may include adding an eluent to an aqueous stream, thereby forming an aqueous mixture, subsequently conducting the aqueous mixture into a separation vessel, wherein it is allowed to settle into two phases, which form a hydrocarbon stream and a phenol-containing water stream, subsequently collecting the hydrocarbon stream, and conducting the phenol-containing water stream to the separation column for further separation. | 11-11-2010 |
20100282492 | CABLE LAYER OF MODIFIED SOFT POLYPROPYLENE - Cable layer comprising a propylene polymer composition comprising (a) a propylene polymer (A) (b) an elastomeric copolymer (B) of propylene and at least one comonomer selected from the group consisting of ethylene, C4 α-olefin, C5 α-olefin, C6 α-olefin, C7 α-olefin, C8 α-olefin, C9 α-olefin and C10 α-olefin, and (c) units (C) derived from at least bifunctionally unsaturated monomer(s) (C) and/or at least multifunctionally unsaturated low molecular weight polymer(s) (C′), the units (C) being linked to the propylene polymer (A) and/or the elastomeric copolymer (B) wherein the gel content of the propylene polymer composition determined as the amount of polymer insoluble in boiling xylene is not more than 1 wt %. | 11-11-2010 |
20100280285 | Treatment of Phenol - A process for the removal of by-products from a phenolic mixture, which process may include the following steps: subjecting a phenolic mixture to extractive distillation to produce an initial phenolic mixture, contacting the initial phenolic mixture containing phenol and one or more by products with a catalyst to produce a first purified phenol product mixture, and distilling the first purified phenol product mixture to produce a second purified phenol product mixture; wherein the extractive distillation is carried out in two columns, a higher pressure column and a lower pressure column. | 11-04-2010 |
20100280206 | POLYETHYLENE COPOLYMER - This application relates to an ethylene polymer having a weight average molecular weight of at least 120,000 including 1-50 tertiary double bonds per 10,000 carbon atoms. | 11-04-2010 |
20100280181 | HETEROPHASIC POLYPROPYLENE WITH HIGH FLOWABILITY AND EXCELLENT LOW TEMPERATURE IMPACT PROPERTIES - The present invention relates to a heterophasic polypropylene resin comprising a propylene homo- or copolymer matrix (A) and an ethylene-propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene at 25° C. (XCU) with an intrinsic viscosity of 1.5 dl/g or less, determined according to DIN EN ISO 1628-1 and -3 and an amount of propylene monomer units of at least 95 mol %, and a fraction soluble in p-xylene at 25° C. (XCS) with an intrinsic viscosity of 1.5 to 3.0 dl/g, determined according to DIN EN ISO 1628-1 and -3, and an amount of propylene monomer units of 50 to 75 mol %, and a MFR (2.16 kg, 230° C.) of more than 100 g/10 min, determined according to ISO 1133, a heterophasic polypropylene composition comprising such a resin, a process for preparing that resin, and an article made thereof. | 11-04-2010 |
20100280166 | HETEROPHASIC POLYPROPYLENE WITH HIGH IMPACT PROPERTIES - The present invention relates to a heterophasic polypropylene resin comprising a polypropylene homo- or copolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene (XCU) at 25° C. with an intrinsic viscosity of 2.0 dl/g or less, determined according to DIN EN ISO 1628-1 and -3, and a fraction soluble in p-xylene (XCS) at 25° C. having an intrinsic viscosity of 2.0 to 4.5 dl/g, determined according to DIN EN ISO 1628-1 and -3, and an amount of ethylene monomer units of 60 to 85 mol %, a heterophasic polypropylene composition comprising such a resin, a process for preparing that resin, and an article made thereof. | 11-04-2010 |
20100279047 | Coated Pipes Having Improved Mechanical Properties at Elevated Temperatures and a Method of Production Thereof - The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol and a melt index MFR | 11-04-2010 |
20100273971 | Reactor System and Process for the Catalytic Polymerization of Olefins, and the Use of Such Reactor System in Catalytic Polymerization of Olefins - The invention relates to a reactor system for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are directly connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for pneumatically displacing polymer particles from the moving bed unit into the fluidized bed unit. | 10-28-2010 |
20100273926 | FLAME RETARDANT POLYMER COMPOSITION COMPRISING POLYOLEFIN WITH HIGH MOLECULAR WEIGHT DISTRIBUTION - The present invention relates to a flame retardant polymer composition, comprising (A) a polyolefin comprising a Opolyolefin with a molecular weight distribution M | 10-28-2010 |
20100272939 | POLYOLEFIN COMPOSITIONS HAVING IMPROVED OPTICAL AND MECHANICAL PROPERTIES - Novel polyolefin compositions comprising (A) a first propylene-ethylene random copolymer and (B) a second propylene-ethylene random copolymer, wherein the polyolefin composition has an ethylene content CM | 10-28-2010 |
20100267916 | Reactor System for the Catalytic Polymerization of Olefins Comprising Shielding Means and a Process and Use Thereof - The invention relates to a reactor system and process for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerization particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are connected to the fluidized bed unit, wherein in the fluidized bed unit is positioned shielding means such that via the outlet of the moving bed unit inflow of fluidization gas is inhibited and outflow of polymerization particles is allowed and to a process and use thereof. | 10-21-2010 |
20100267915 | Reactor System and Process for the Catalytic Polymerization of Olefins, and the Use of Such Reactor System in Catalytic Polymerization of Olefins - The invention relates to a reactor system and process for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for displacing metered quantities of polymerized particles from the moving bed unit into the fluidized bed unit, and to the use of such reactor system. | 10-21-2010 |
20100267903 | Process for the preparation of propylene random copolymers - A process for the preparation of a propylene random copolymer, wherein propylene is polymerised with ethylene and/or a C4-C20 alpha-olefin in the presence of a catalyst system comprising solid catalyst particles, wherein the solid catalyst particles (a) have a specific surface area of less than 20 m | 10-21-2010 |
20100267900 | POLYPROPYLENE COMPOSITION COMPRISING A CROSS-LINKABLE DISPERSED PHASE COMPRISING SILANOL GROUPS CONTAINING NANOFILLERS - The present invention relates to a polypropylene composition comprising: a matrix phase comprising a polypropylene homo- or copolymer (A); and a phase dispersed in said matrix phase comprising an olefin homo- or copolymer (B) having hydrolysable silicon-containing groups, and an inorganic filler material (C) containing on its surface silanol groups or precursors thereof, and having a specific surface BET of 30 to 300 m | 10-21-2010 |
20100267869 | UV STABILIZATION OF A CROSS-LINKABLE POLYOLEFIN COMPOSITION COMPRISING AN ACIDIC SILANOL CONDENSATION CATALYST - The present invention relates to a polyolefin composition comprising (A) a cross-linkable polyolefin with hydrolysable silane groups; (B) and a silanol condensation catalyst characterized in that the ΔF is more than 40 Nm and the cross-linking speed is more than 0.1 Nm/s in the ice test and retention of more than 60% of the elongation at break after 500 h in SEPAP UV exposure, further a polyolefin composition comprising (A) a cross-linkable polyolefin with hydrolysable silane groups; (B) an acidic silanol condensation catalyst, and (C) at least one UV stabilizer that is acidic, i.e. pH equal or less than 6.2, measured at 20-25° C. and with 1 wt % suspension; to an article comprising such a composition, and to the use of such a composition for the production of an article. | 10-21-2010 |
20100266798 | LOW MIGRATION POLYOLEFIN COMPOSITION COMPRISING VITAMIN E-TYPE STABILISER - The present invention relates to a polyolefin composition comprising (a) a polyolefin (A), (b) a vitamin E-type stabiliser (B) according to formula (I), wherein R1, R2, R3, R4 and R5 independently are H, or non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise heteroatoms, and (c) a phenolic stabilizer (C) according to formula (II), wherein R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups; and X1, X2, and X3 independently are H or OH, with the provisio that at least one of X1, X2 and X3 is OH, and (d) optionally, an UV stabilizer, to an article comprising such a polyolefin composition and to the use of such a composition for the production of an article. | 10-21-2010 |
20100263903 | Polyolefin Composition for Medium/High/Extra High Voltage Cables with Improved Electrical Breakdown Strength - The present invention relates to a polyolefin composition comprising a polyolefin and aromatic compounds, comprising a naphthyl-group or at least two linked phenyl-groups, as stabilizers for use in producing medium and high voltage cables with improved electrical breakdown strength. | 10-21-2010 |
20100263785 | IMPREGNATION OF A FILAMENT ROVING - The invention relates to a device and a method for impregnating filaments, wherein the filaments form a roving. The device comprises a barrel ( | 10-21-2010 |
20100255237 | PROCESS FOR PRODUCING COLOURED POLYPROPYLENE COMPOSITIION HAVING A HIGH CONTENT OF BETA-MODIFICATION - The invention relates to a novel process for producing coloured polypropylene compositions having a high content of β-modification, wherein polypropylene is melt blended with at least one inorganic pigment and at least one β-nucleating agent, wherein a1) polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain a coloured polypropylene and a2) the coloured polypropylene is melt blended with at least one β-nucleating agent or with a second concentrate comprising the at least one β-nucleating agent to obtain the coloured β-nucleated polypropylene composition or b1) polypropylene is melt blended with at least one β-nucleating agent or with a second concentrate comprising the at least one β-nucleating agent to obtain a β-nucleated polypropylene and b2) the β-nucleated polypropylene is melt blended with at least one inorganic pigment or with a first concentrate comprising the at least one inorganic pigment to obtain the coloured β-nucleated polypropylene composition or c) a third concentrate is produced by melt blending a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one β-nucleating agent and the polypropylene is melt blended with the third concentrate to produce the coloured β-nucleated polypropylene composition or d) a first concentrate comprising the at least one inorganic pigment and a second concentrate comprising the at least one β-nucleating agent are melt blended with the polypropylene to obtain the coloured β-nucleated polypropylene composition. | 10-07-2010 |
20100255236 | BETA-NUCLEATED PROPYLENE COPOLYMER - Heterophasic propylene copolymer (HECO) comprising wherein the heterophasic propylene copolymer (HECO) is β-nucleated and the elastomeric phase has an intrinsic viscosity measured in tetraline at 135° C. of equal or below 4.0 dl/g. | 10-07-2010 |
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 |
20100249326 | SOFT POLYPROPYLENE COMPOSITION WITH SOFT TOUCH FEELING - Propylene polymer composition comprising a polypropylene (A), an elastomeric copolymer (B) of ethylene and at least one α-olefin comonomer selected form the group consisting of propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene and 1-octene, and an ethylene C2 to C8 alkyl acrylate copolymer (C) wherein the composition has a strain hardening SH | 09-30-2010 |
20100247375 | POLYOLEFIN COMPOSITIONS HAVING IMPROVED OPTICAL AND MECHANICAL PROPERTIES - The invention relates to the use of a polyolefin composition comprising a propylene-ethylene random copolymer having an ethylene content of 0.5-10 wt % and a randomness R of the ethylene distribution in the polymer chain of ≧0.945 for the production of articles having high sterilisation resistance. | 09-30-2010 |
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 |
20100234541 | Process to Reduce Polyolefins with Extra Low Impurity Content - A process for producing polyolefins, which includes polymerizing at least one olefin monomer, separating at least a part of the reaction mixture, dividing the separated reaction mixture into a polymer-lean fraction and a polymer-rich fraction, and subjecting at least a part of the polymer-lean fraction to a purification step prior to recycling back to the polymerization of at least one olefin monomer. The obtained polyolefins particularly have a low content of volatile low molecular weight compounds, a low content of low-molecular weight polyolefin waxes and a low content of residues derived from the catalyst employed. | 09-16-2010 |
20100216957 | CATALYST PREPARATION WITH PHOSPHOROUS COMPOUND - The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having an improved polymerisation properties due to the addition of a phosphorous compound during catalyst component preparation and the use thereof in a process for polymerising olefins. | 08-26-2010 |
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 |
20100206607 | Semiconductive Polymer Composition - The present invention provides a semiconductive polymer composition having (a) from 30 to 90 wt % of a polymer component, (b) from 10 to 60 wt % of carbon black and (c) from 0 to 8 wt % additives, based on the total semiconductive polymer composition, and wherein the composition comprises less than 23 particles per m | 08-19-2010 |
20100196708 | EQUIPMENT AND PROCESS FOR PRODUCING POLYMER PELLETS - The present invention relates to an equipment and method for producing polymer pellets which comprise one or more polymer components and one or more further components, wherein in said process at least one of said one or more further components is incorporated into pellets by applying a liquid, which comprises said at least one component, onto said pellets. | 08-05-2010 |
20100193217 | Process for Preparing and Crosslinking a Cable Comprising a Polymer Composition and a Crosslinked Cable - The application relates to a process for preparing a crosslinked cable, including:—applying one or more layers including a polymer composition on a conductor, wherein at least one layer includes one or more free radical generating agents,—crosslinking by radical reaction said at least one layer comprising said free radical generating agent(s),—cooling the obtained crosslinked cable in pressurized conditions. | 08-05-2010 |
20100190891 | POLYEFIN COMPOSITIONS WITH HIGHLY CRYSTALLINE CELLULOSE REGENRATE FIBERS - The present invention relates to polyolefin compositions comprising man-made cellulose fibers of very high modulus to improve the mechanical performance of said compositions while retaining a low density. The present invention further relates to a melt mixing process with controlled shear intensity and energy input especially suitable for the production of said compositions. | 07-29-2010 |
20100184929 | Process for the production of propylene copolymers using a prepolymerised catalyst - The present invention relates to a process for the production of propylene copolymers wherein
| 07-22-2010 |
20100181096 | Modified Polymer Compositions, Modification Process and Free Radical Generating Agents - The application relates to a method for modifying a polymer composition, to modified polymer compositions, to an article, preferably wire or cable, including said modified polymer composition, to a process for preparing an article, preferably a wire or cable, to the use of said modified polymer in one or more layers of a wire or cable, as well as to a compound for use as a radical generating agent for modifying a polymer composition. | 07-22-2010 |
20100181095 | Unsaturated Polymer Composition - The invention relates to a method for modifying a polymer composition, to modified polymer compositions, to an article, preferably wire or cable, including said modified polymer composition, to a process for preparing an article, preferably a wire or cable, to the use of said modified polymer in one or more layers of a wire or cable, as well as to a compound for use as a radical generating agent for modifying a polymer composition. | 07-22-2010 |
20100168364 | MULTI-BRANCHED POLYPROPYLENE - Multi-branched polypropylene having a g′ of less than 1.00 | 07-01-2010 |
20100168324 | HIGH TEMPERATURE PP ADHESIVE - The present invention relates to an adhesive composition providing high peel strength in particular at high temperatures, an article comprising a layer of the adhesive and the use of the adhesive. | 07-01-2010 |
20100163273 | Process for Preparing and Crosslinking a Cable Comprising a Polymer Composition and a Crosslinked Cable - The application relates to a process for preparing a crosslinked cable, including: —applying one or more layers including a polymer composition on a conductor, wherein at least one layer includes one or more free radical generating agents, —crosslinking by radical reaction said at least one layer including said free radical generating agent(s), —cooling the obtained crosslinked cable in pressurized conditions, and —reducing or removing the content of volatile decomposition products(s), which are originating from optionally in elevated temperature, from the crosslinked cable obtained from cooling and recovery step. | 07-01-2010 |
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 |
20100151172 | PIPES COMPRISING BETA-NUCLEATED PROPYLENE COPOLYMERS - The present invention concerns a propylene copolymer composition, a molded article comprising the composition and the use of the propylene copolymer composition for preparing molded articles, preferably pipes. | 06-17-2010 |
20100143631 | LOW MIGRATION POLYOLEFIN COMPOSITION - The present invention relates to a composition comprising: a) a polyolefin (A); b) a compound (B) according to formula (I), wherein R and R′ each is the same or different residue and comprising at least 6 C-atoms; c) a phenolic compound (C), having the formula (II) wherein R is an non-substituted or substituted aliphatic or aromatic hydrocarbyl radical which may comprise heteroatoms, or R is an heteroatom; X is H, OH, and/or R′; whereby R′ is a hydrocarbyl radical or hydrogen, and n is 1 to 4; and d) optionally, an UV-light stabilizer (D), wherein for the composition the total amount of migrated compounds (B), (C) and, if present, (D), as well as their decomposition products is equal to or less than 1.8 microgram per liter with a ratio S/V dm | 06-10-2010 |
20100134953 | ELECTRICAL INSULATION FILM - The present invention relates to a capacitor film comprising a biaxially oriented polypropylene wherein a) said polypropylene has a draw ratio in machine direction of at least 4.0 and a draw ratio in transverse direction of at least 4.0, and b) said polypropylene has an electrical breakdown strength EB63% according to IEC 60243-part 1 (1988) of at least 300 kV/mm at a draw ratio in machine direction and in transverse direction of 4.0. | 06-03-2010 |
20100121010 | CATALYST SYSTEM FOR POLYPROPYLENE COPOLYMERS - Catalyst system comprising (a) a procatalyst composition comprising (i) a transition metal compound of Group 4 to 6 of the Periodic table (IUPAC, Nomenclature of Inorganic Chemistry, 1989), (i) M | 05-13-2010 |
20100108357 | CROSS-LINKING AGENT - The present invention relates to a crosslinkable polymer composition comprising an unsaturated polyolefin having a total amount of carbon-carbon double bonds/1000 carbon atoms of at least 0.38, and at least one crosslinking agent being a carbon-carbon initiator that is free of peroxide groups and capable of thermally decomposing into carbon-based free radicals by breaking at least one carbon-carbon single bond, such as 3,4-dimethyl-3,4-diphenylhexane. | 05-06-2010 |
20100108354 | Cable with Improved Flame Retardancy - The present invention relates to a cable comprising one or more insulated conductors which are embedded in a bedding composition having improved flame retardancy. The bedding composition comprises a resin (A) and inorganic filler (B), which is a hydroxide or hydrated compound. | 05-06-2010 |
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 |
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 |
20100089611 | Flexible Power Cable with Improved Water Treeing Resistance - The present invention relates to a power cable comprising a conductor, an inner semiconductive layer, an insulation layer and an outer semiconductive layer, wherein the insulation layer comprises a polymer comprising
| 04-15-2010 |
20100075087 | Multimodal Polyethylene Resin for Pipe Made by a Single-site Catalyst - The present invention relates to a polyethylene composition comprising a polyethylene base resin, which comprises
| 03-25-2010 |
20100071796 | Polyolefin multilayer pipe - Polyolefin multilayer pipes consisting at least one of the layers of a β-nucleated propylene homopolymer and/or β-nucleated copolymers from 90.0 to 99.9% by weight of propylene and 0.1 to 10.0% by weight of α-olefins. The pipes are to be classified in ring stiffness class ≧4. The pipes are suitable for non pressure pipe applications, preferably for outdoor use, for above as well as underground drainage and sewerage pipe systems, surface water pipes, pipes for cable protection, pipes for cold climate conditions and for indoor use, soil and waste water pipes. | 03-25-2010 |
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 |
20100056359 | PROCESS FOR PREPARING AN OLEFIN POLYMERISATION CATALYST COMPONENT WITH IMPROVED HIGH TEMPERATURE ACTIVITY - The invention refers to a process for increasing the polymerization activity of a titanium containing catalyst, in particular an olefin polymerization catalyst component in particulate form having an improved high temperature activity and the use thereof in a process for polymerizing olefins. | 03-04-2010 |
20100055366 | Pipe Having Improved High Temperature Resistance - The present invention relates to a pipe made of a polyethylene composition comprising a polyethylene base resin, which comprises c. an ethylene copolymer as fraction (A), and d. an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein the polyethylene base resin is obtainable in a polymerisation process in which a single-site catalyst (SSC) is used in the polymerisation of at least one of fractions (A) and (B), the base resin having (i) a density of below 940 kg/m, and (ii) a MFR | 03-04-2010 |
20100048808 | LOW TEMPERATURE PE TOPCOAT - The present invention concerns the use of a particular ethylene polymer for providing coating compositions displaying improved values for elongation at break at −45° C., rendering coating compositions prepared in accordance with the present invention suitable for low temperature applications. | 02-25-2010 |
20100047599 | Polymer blend - The invention relates to a polymer blend suitable for the production of film, said polymer blend comprising at least (1) a multimodal high density polyethylene (HDPE) composition and (2) a low density polyethylene (LDPE) polymer, a linear low density polyethylene (LLDPE) polymer or a mixture of LDPE and LLDPE polymers, said HDPE composition comprising a multimodal HDPE polymer which contains at least a lower molecular weight (LMW) polyethylene component and a higher molecular weight (HMW) polyethylene component. | 02-25-2010 |
20100047544 | BIAXIALLY ORIENTED ELECTRICAL INSULATING FILM - The invention relates to a biaxially oriented electrical insulating film which contains a mixture from a polypropylene P1 and a polypropylene P2 which is different therefrom. The polypropylene P1 is a linear polypropylene and has an Mw/Mn> | 02-25-2010 |
20100025073 | Semiconductive Polyolefin Composition - The present invention relates to a semiconductive polyolefin composition comprising:
| 02-04-2010 |
20100022703 | CROSSLINKABLE POLYOLEFIN COMPOSITION COMPRISING HIGH MOLECULAR WEIGHT SILANOL CONDENSATION CATALYST - The present invention relates to a composition comprising (i) a crosslinkable polyolefin with hydrolysable silane groups (A), and (ii) a silanol condensation catalyst comprising an organic sulphonic acid (B) which comprises the structural element Ar—R | 01-28-2010 |
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 |
20100016481 | POLYOLEFIN COMPOSITION WITH INCREASED RESISTANCE TO CIO2-CONTAINING WATER - The present invention relates to a polyolefin composition comprising a polyolefin base resin and an antioxidant, characterized in that said polyolefin composition has a lifetime of at least 200 h in a test measuring the resistance against ClO | 01-21-2010 |
20100010168 | BETA-NUCLEATING AGENT FOR POLYPROPYLENE AND PROCESS FOR ITS PREPARATION - The present invention relates to a novel β-nucleating agent and a process for preparing same. Preferably, the β-nu-cleating agent is a water-free admixture of calcium carbonate and a calcium salt of a dibasic organic acid. | 01-14-2010 |
20100004378 | USE OF POLYPROPYLENE COMPOSITION - This invention relates to use of a polymer composition for rotomoulding, wherein said composition comprises:
| 01-07-2010 |
20090318642 | Surface-Modified Polymerization Catalysts for the Preparation of Low-Gel Polyolefin Films - Use of a catalyst composition treated with a surface modifier in the polymerization of olefins for lowering the gel content in the resulting polyolefin, wherein the surface modifier has a polar residue capable of interacting with the surface of the catalyst composition and a lipophilic residue and is selected from carboxylate metal salts, nitrogen containing catalyst surface modifiers, phosphorus containing catalyst surface modifiers, oxygen containing catalyst surface modifiers, sulfur containing catalyst surface modifiers, fluoro containing polymeric catalyst surface modifiers or mixtures thereof and wherein the gel content is determined by using pressed plate gel analysis method. | 12-24-2009 |
20090317614 | Film - A film, such as a monolayer film or multilayer, or a polymer composition comprising at least one single site produced LLDPE (mLLDPE) and an ethylene acrylate copolymer. | 12-24-2009 |
20090312178 | CATALYTIC SYSTEM - A catalyst system comprising an asymmetric catalyst, wherein the wherein the catalyst system has a porosity of less than 1.40 ml/g. | 12-17-2009 |
20090306271 | Multimodal Polypropylene Polymer Composition - A multimodal polymer composition comprising: (A) a polypropylene homopolymer or a propylene random copolymer comprising propylene and up to 5 weight % of comonomer selected from ethylene and/or C | 12-10-2009 |
20090305875 | CATALYST WITH AL-ALKOXY COMPONENT - The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having an improved high temperature activity and the use thereof in a process for polymerising olefins. | 12-10-2009 |
20090292089 | LIGAND-MODIFIED ZIEGLER-NATTA CATALYST FOR OLEFIN (CO-) POLYMERIZATION - The present invention relates to a Ziegler-Natta catalyst comprising a solid, ligand-modified catalyst component formed at least from
| 11-26-2009 |
20090291305 | USE OF POLYPROPYLENE COMPOSITION - This invention relates to use of a polymer composition for rotomoulding, wherein said composition comprises:
| 11-26-2009 |
20090253863 | POLYETHYLENE COMPOSITION FOR INJECTION MOLDED CAPS AND CLOSURE ARTICLES - The present invention relates to a multimodal polyethylene composition wherein (i) the composition has an MFR | 10-08-2009 |
20090252910 | MULTIMODAL POLYETHYLENE COMPOSITION WITH IMPROVED HOMOGENEITY - The present invention concerns a multimodal polyethylene composition comprising a base resin comprising three ethylene homo- or copolymer fractions (A), (B) and (C) with different weight average molecular weight M | 10-08-2009 |
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 |
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 |
20090186994 | OLEFIN POLYMERISATION CATALYST - The present invention relates to particulate olefin polymerisation catalyst components comprising an alkaline earth metal, a compound of a transition metal and an electron donor, characterized in that the catalyst particle size distribution of the catalyst component is essentially monomodal and has a SPAN value below 1.2, where SPAN is defined as: (Particle diameter at 90% cumulative size)−(Particle diameter at 10% cumulative size)/(Particle diameter at 50% cumulative size). The particulate olefin polymerisation catalyst components of the present invention are provided by a process which comprises preparing a solution of a complex of an alkaline earth metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof in an organic liquid reaction medium, reacting said complex in the solution form with a compound of a transition metal to produce a dispersion, wherein the dispersed phase predominantly contains the alkaline earth metal in said complex, and solidifying said dispersed phase to obtain said catalyst component, and is characterized in that a second organic liquid medium is added to the reactor after mixing the alkaline earth metal complex with the transition metal compound. | 07-23-2009 |
20090137753 | PROCESS FOR POLYMERIZING OLEFINS IN THE PRESENCE OF AN OLEFIN POLYMERIZATION CATALYST - The present invention relates to a process for the preparation of multimodal ethylene homo- or copolymers in at least two stages, the process comprising preparation of a first ethylene homo- or copolymer fraction in a loop reactor in slurry phase, preparation of a second ethylene homo- or copolymer fraction in a gas phase reactor, by using a catalyst not containing an inorganic oxide support, and operating the gas phase reactor in such conditions that at least part of the gas is recycled, and that at least a part of the recycled gas is condensed and the (partially) condensed gas is re-introduced into the gas phase reactor. | 05-28-2009 |
20090137722 | Polypropylene Resin With Low Shrinkage, High Impact Strength, Stiffness and Scratch Resistance - The present invention relates to a polypropylene resin with low shrinkage, excellent impact strength and high stiffness and scratch resistance which comprises
| 05-28-2009 |
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 |
20090118415 | POLYPROPYLENE COMPOSITIONS - A polymer composition having (i) 0.01 to 50% wt (e.g. 0.05 to 15% wt) of a propylene polymer with a polymeric nucleating agent is disclosed. Preferably, the agent contains vinyl compound units and (ii) a heterophasic propylene polymer which includes less (or no) polymeric nucleating agent than the propylene polymer in (i). | 05-07-2009 |
20090029166 | POLYMER COMPOSITION HAVING IMPROVED WET AGEING PROPERTIES - The present invention relates to a crosslinkable polymer composition, comprising (i) an unsaturated polyolefin having a total amount of carbon-carbon double bonds/1000 carbon atoms of more than 0.37, and (ii) a polar copolymer | 01-29-2009 |
20090020749 | SEMICONDUCTIVE CROSSLINKABLE POLYMER COMPOSITION - The present invention relates to a crosslinkable polymer composition which is useful for the preparation of semiconductive layers of electric cables, the polymer composition comprising (a) an unsaturated polyolefm having at least 0.15 vinyl groups/1000 carbon atoms and (b) carbon black. | 01-22-2009 |
20090018267 | Polypropylene Composition Comprising a Propylene Homopolymer Component - The present invention concerns a polypropylene composition comprising a nucleated propylene homopolymer having improved optical properties. | 01-15-2009 |
20090012247 | Process for the preparation of an olefin polymerisation catalyst - This invention relates to a process for the preparation of an olefin polymerisation catalyst, to the use of the catalyst in olefin polymerisation and to the catalyst and polymers obtained. In particular, the invention relates to the preparation of a catalyst comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC) by a semi-continuous or continuous process. | 01-08-2009 |
20090004489 | Extrusion Coating Polyethylene - The present invention relates to a polymer composition with good chemical properties and barrier properties being multimodal and comprising a polymer (A) having a weight average molecular weight of lower than 6000 g/mol and a polyolefine (B) having a higher weight average molecular weight than polymer (A) and a filler (C), whereby a polymer composition without filter (C) has a density of 940 kg/m | 01-01-2009 |
20090004417 | Polyolefin composition for rotomolding - A polymer composition suitable for rotomoulding comprising I) An ethylene homopolymer or copolymer with at least one other C | 01-01-2009 |
20090004416 | Injection Molded Article - An injection molded article formed from a polypropylene polymer and having an in mold label located inside the article is disclosed. The article may contain a product such as a product that contains an organic solvent. | 01-01-2009 |
20090004415 | Polypropylene Film with Improved Balance of Mechanical Properties - The present invention relates to a blown film made of a composition comprising a) a propylene heterophasic copolymer (A) with a matrix propylene polymer and an ethylene-propylene-rubber characterized in that the film has been monoaxially oriented in the machine direction with a stretch ratio of 1:1.1 to 1:10, to a process for making such a film, to the use of said composition in making such a film, and to an article comprising such a film. | 01-01-2009 |
20080308296 | Polyolefin Composition For Use As An Insulating Material - The invention relates to a polymer composition, comprising (a) a polyolefin base resin which comprises at least (a1) a first olefin homo- or copolymer fraction, and (a2) a second olefin homo- or copolymer fraction, wherein the weight average molecular weight of the first fraction is lower than the weight average molecular weight of the second fraction, and (b) at least one additive selected from a polar copolymer; a low density polyethylene; an ether and/or ester group containing additive selected from the group consisting of polyethylene glycol, a glycerol ester compound, polypropylene glycol, an amido group containing fatty acid ester, ethoxylated and/or propoxylated pentaerythritol, an alpha-tocopherol ester, an ethoxylated and/or propoxylated fatty acid, and derivatives thereof; or mixtures of these additives. | 12-18-2008 |
20080299364 | Film - A multilayer film containing at least three layers, two outer layers and a core layer, each outer layer independently having at least 50% wt of a single site catalyst produced LLDPE component having a density of less than 940 kg/m | 12-04-2008 |
20080287608 | Polyethylene Composition for Injection Moulded Transport Packaging Articles - The present invention relates to a polyethylene composition wherein
| 11-20-2008 |
20080275200 | Production Of Olefin Polymerization Catalysts - The invention provides a process for producing an olefin polymerisation catalyst, comprising an organometallic compound of a transition metal or of an actinide or lanthanide, in the form of solid catalyst particles, comprising forming a liquid/liquid emulsion system which comprises a solution of one or more catalyst components dispersed in a solvent immiscible therewith; and solidifying said dispersed phase to convert said droplets to solid particles comprising the catalyst and optionally recovering said particles. | 11-06-2008 |
20080269424 | Crosslinkable Polyethylene Composition, an Electric Cable Comprising It, and a Process for Its Preparation - A crosslinkable silane containing polyethylene composition, an insulated electric cable, and a process for the preparation of the composition are described. The crosslinkable silane containing polyethylene composition has a silane content of about 0.1 to 10% by weight, and at least one silanol condensation catalyst, and is characterised in that the composition has a branching parameter (g′) value of at least 0.65. The insulation of the electrical cable comprise the composition as a polymer. The process is characterised in that it is a high pressure polymerisation process at a peak temperature of at most 260° C. | 10-30-2008 |
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 |
20080262136 | Insulating Composition for an Electric Power Cable - The present invention relates to an insulating composition for an electric power cable which comprises a polyolefin, an antioxidant, and a polar copolymer. Further, the present invention relates to an electric power cable comprising an insulating layer including a composition according to the present invention, and to the use of a polar copolymer for improving the storage stability, i.e. reducing the exudation of an antioxidant, in an insulating polymer composition. Thereby, said composition comprises polar monomer units in a comparatively small amount, e.g. in an amount of polar monomer units in the total polymer part of the composition from 1 to 100 micromol (1·10″ | 10-23-2008 |
20080261064 | Extrusion Coating Polyethylene - A polymer composition for extrusion coating with good process properties comprising a multimodal high density polyethylene (A) and a low density polyethylene. | 10-23-2008 |
20080241510 | Polyethylene Resin With Narrow Particle Size Distribution - The present invention relates to a polyethylene resin comprising 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), characterized in that the polymer resin powder obtained directly after the final polymerisation step has a particle size distribution PSD | 10-02-2008 |
20080226858 | Peroxide Crosslinked Ethylene Polymer Pressure Pipe and a Method for the Preparation Thereof - A peroxide crosslinked ethylene polymer pressure pipe and a method for the preparation thereof are described. The pipe is characterised in that it comprises an ethylene polymer with a density of less than 950 kg/m | 09-18-2008 |