Patent application number | Description | Published |
20080281037 | Adhesive and Marking Compositions Made From Interpolymers of Ethylene/Alpha-Olefins - An adhesive composition comprises: (i) at least one ethylene/α-olefin interpolymer, (ii) at least one tackifÊer; and (iii) optionally at least one additive, such as a plasticizer, wax and antioxidant. Preferably, the ethylene/α-olefin interpolymer has a M | 11-13-2008 |
20080306217 | Low Molecular Weight Ethylene Interpolymers, Methods of Making, and Uses Thereof - The invention provides a comprising one or more ethylene interpolymers, and wherein the interpolymers, or the composition, has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein at least one ethylene interpolymer has an Rv from 0.3 to 0.99. The invention further provides a composition comprising at least one low molecular weight (LMW) ethylene interpolymer, and at least one high molecular weight (HMW) ethylene interpolymer, and wherein the composition has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein the sum of the Rv from the low molecular weight interpolymer and the high molecular weight interpolymer is from 0.3 to 2. The invention further provides for processes of making such compositions, processes for functionalizing the interpolymer(s) of such compositions, and articles comprising at least one component prepared from an inventive composition. | 12-11-2008 |
20090105407 | Polypropylene-Based Adhesive Compositions - An adhesive composition comprising a copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and C | 04-23-2009 |
20100087606 | HIGH PRESSURE LOW DENSITY POLYETHYLENE RESINS WITH IMPROVED OPTICAL PROPERTIES PRODUCED THROUGH USE OF HIGHLY ACTIVE CHAIN TRANSFER AGENTS - Disclosed is an ethylene-based polymer with a density from about 0.90 to about 0.94 in grams per cubic centimeter, with a molecular weight distribution (M | 04-08-2010 |
20100160497 | FUNCTIONALIZED OLEFIN INTERPOLYMERS, COMPOSITIONS AND ARTICLES PREPARED THEREFROM, AND METHODS FOR MAKING THE SAME - The invention provides compositions containing at least one functionalized polyolefin, and in particular, to compositions containing at least one functionalized ethylene interpolymer, which has a melt viscosity less than 50,000 cP at 350° F. (177° C.) and a molecular weight distribution (M | 06-24-2010 |
20100168330 | LONG CHAIN BRANCHED (LCB), BLOCK OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER - An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, T | 07-01-2010 |
20100197863 | Compositions Exhibiting High ESCR and Comprising Monovinylidene Aromatic Polymers and Olefinic Copolymers Containing Unsaturation - Compositions comprising (a) a monovinylidene aromatic polymer, e.g., HIPS, and (b) an ethylene/alpha-olefin (EAO) copolymer, e.g., an ethylene-propylene copolymer, that satisfies the mathematical relationship: y≦20+2.35x in which y is the ethylene content in mole percent (mol %) of the EAO copolymer and x is the Brookfield viscosity in centipoise (cP) at 10O° C. of the EAO copolymer and the viscosity is at least 1 centipoise (cP), exhibit improved environmental stress crack resistance as compared to compositions containing monovinyiidene aromatic polymers but without such an EAO copolymer. The compositions are useful in the manufacture of articles, e.g., refrigerator liners and food packaging, which come in contact with the oils contained in various food stuffs. | 08-05-2010 |
20100311927 | PROCESS TO MAKE LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE - A process is taught, comprising polymerizing ethylene in the presence of a catalyst to form a crystalline ethylene-based polymer having a crystallinity of at least 50% as determined by DSC Crystallinity in a first reactor or a first part of a multi-part reactor and reacting the crystalline ethylene-based polymer with additional ethylene in the presence of a free-radical initiator to form an ethylenic polymer in at least one other reactor or a later part of a multi-part reactor. | 12-09-2010 |
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 |
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 |
20110021713 | LONG CHAIN BRANCHED (LCB), BLOCK OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER - An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, T | 01-27-2011 |
20110130533 | PROCESS TO MAKE LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE - A process is taught, comprising polymerizing ethylene in the presence of a catalyst to form a crystalline ethylene-based polymer having a crystallinity of at least 50% as determined by DSC Crystallinity in a first reactor or a first part of a multi-part reactor and reacting the crystalline ethylene-based polymer with additional ethylene in the presence of a free-radical initiator to form an ethylenic polymer in at least one other reactor or a later part of a multi-part reactor. | 06-02-2011 |
20110144240 | Functionalized Ethylene/Alpha-Olefin Interpolymer Compositions - The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties. | 06-16-2011 |
20110152437 | Functionalized Ethylene/a-Olefin Interpolymer Compositions - The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties. | 06-23-2011 |
20110178253 | HIGH PRESSURE LOW DENSITY POLYETHYLENE RESINS WITH IMPROVED OPTICAL PROPERTIES PRODUCED THROUGH USE OF HIGHLY ACTIVE CHAIN TRANSFER AGENTS - Disclosed is an ethylene-based polymer with a density from about 0.90 to about 0.94 in grams per cubic centimeter, with a molecular weight distribution (M | 07-21-2011 |
20120046401 | METHOD FOR THE REDUCTION OF POLAR ADDITIVES REQUIRED FOR USE IN POLYOLEFINS - A method for improving the efficacy of polar additives used in polyolefins is disclosed. The method is related to the addition of an effective amount of a co-additive compound of the formula R | 02-23-2012 |
20120108777 | INTERPOLYMERS SUITABLE FOR USE IN HOT MELT ADHESIVES AND PROCESSES TO PREPARE THE SAME - The present invention relates to an ethylene/α-olefin interpolymer product comprising at least one α-olefin interpolymerized with ethylene and, characterized in at least one aspect, as having improved properties when utilized in a hot melt adhesive formulation. The invention also relates to a process for manufacturing the interpolymer product wherein the process comprises employing two or more single site catalyst systems in at least one reaction environment (or reactor) and wherein the at least two catalyst systems have (a) different comonomer incorporation capabilities or reactivities and/or (b) different termination kinetics, both when measured under the same polymerization conditions. The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers. | 05-03-2012 |
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 |
20120172545 | Interconnected Copolymers Of Ethylene In Combination With At Least One Polysiloxane - The invention provides a polymer comprising units derived from ethylene and siloxane, polymer having at least 0.15 units of amyl groups per 1000 carbon atoms as determined by | 07-05-2012 |
20120232244 | Polymers Comprising Units Derived from Ethylene and Poly(Alkoxide) - A polymer comprises units derived from ethylene and poly(alkoxide) the polymer having at least 0.15 units of amyl groups per 1000 carbon atoms as determined by 13C Nuclear Magnetic Resonance (NMR). | 09-13-2012 |
20120245287 | LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER - An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, T | 09-27-2012 |
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 |
20120289645 | Photodegradable Films with Good Tensile and Dart Properties - Film structures made from a polymeric blend comprising an ethylene/carbon monoxide (ECO) copolymer and an olefinic, particularly an ethylenic, polymer, e.g., LDPE, exhibit not only photodegradation, but also desirable tensile and dart properties. In one embodiment the film structure is a monolayer in which ECO copolymer comprises at least 40 weight percent with the remainder of the structure comprising at least one of LDPE, LLDPE and HDPE. | 11-15-2012 |
20130035444 | POLYETHYLENE WITH HIGH MELT STRENGTH FOR USE IN FILMS - The present invention is a method for producing a film particularly well suited for shrink film applications, said method comprising the steps of selecting a target polyethylene resin and then increasing the melt strength of the polyethylene resin by reacting the polyethylene resin with an alkoxy amine derivative, and then forming a film from the reacted target polyethylene. | 02-07-2013 |
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 |
20130085234 | FUNCTIONALIZED ETHYLENE/ALPHA-OLEFIN INTERPOLYMER COMPOSITIONS - The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties. | 04-04-2013 |
20130144019 | ETHYLENE/ALPHA-OLEFIN INTERPOLYMER SUITABLE FOR USE IN SHRINKAGE FILM APPLICATIONS, AND ARTICLES MADE THEREFROM - The instant invention provides an ethylene/alpha-olefin interpolymer suitable for use in shrinkage film applications, and articles made therefrom. The ethylene/alpha-olefin interpolymer according to the present invention has a CDBI of less than 60%, and comprises at least two fractions in crossfractionation of the ethylene/alpha-olefin interpolymer, eluting from 85° C. to 90° C. and from 90° C. to 95° C., comprising a weight fraction ratio of >0.68 and a molecular weight homogeneity index of greater than 0.65; wherein the weight fraction ratio is the ratio of the weight of polymer in each fraction divided by the weight of polymer eluting between 95° C. and 100° C. and the molecular weight homogeneity index is the ratio of the weight average molecular weight of the polymer in the fraction divided by the weight average molecular weight of the polymer eluting between 95° C. and 100° C., and wherein the ethylene/alpha-olefin interpolymer has a density in the range of 0.920 to 0.940 g/cm | 06-06-2013 |
20130190465 | ETHYLENE/ALPHA-OLEFIN INTERPOLYMER SUITABLE FOR USE IN FIBER APPLICATIONS, AND FIBERS MADE THEREFROM - The instant invention provides an ethylene/alpha-olefin interpolymer suitable for use in fiber applications, and fibers made therefrom. The ethylene/alpha-olefin interpolymer according to the present invention has a CDBI of less than 60%, and comprises at least two fractions in crossfractionation of the ethylene/alpha-olefin interpolymer, eluting from 85° C. to 90° C. and from 90° C. to 95° C., comprising a weight fraction ratio of >0.68 and a molecular weight homogeneity index of greater than 0.65; wherein the weight fraction ratio is the ratio of the weight of polymer in each fraction divided by the weight of polymer eluting between 95° C. and 100° C. and the molecular weight homogeneity index is the ratio of the weight average molecular weight of the polymer in the fraction divided by the weight average molecular weight of the polymer eluting between 95° C. and 100° C., and wherein the ethylene/alpha-olefin interpolymer has a density in the range of from 0.920 to 0.965 g/cm | 07-25-2013 |
20130253126 | PROCESSES TO PREPARE ETHYLENE-BASED POLYMER COMPOSITIONS - The invention provides a process to form an ethylene-based polymer composition, the process comprising at least the following: Step 1: polymerizing a first ethylene-based polymer in the presence of at least one molecular catalyst and a hydrocarbon chain transfer agent, and at a polymerization pressure of at least 14,000 psi; Step 2: polymerizing a second ethylene-based polymer. | 09-26-2013 |
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 |
20130287985 | ANTIOXIDANT COMPOUNDS FOR POLYOLEFIN RESINS - The present invention is a composition suitable for use as an antioxidant for polyolefin resins, said composition having a structure corresponding to the formula: wherein R | 10-31-2013 |
20140011927 | Process to Produce Enhanced Melt Strength Ethylene/Alpha-Olefin Copolymers and Articles Thereof - An ethylene/α-olefin copolymer comprising units derived from ethylene; and units derived from at least one α-olefin; wherein the ethylene/α-olefin copolymer has a density in the range of from 0.90 to 0.94 g/cc; a melt index (I | 01-09-2014 |
20140024775 | LONG CHAIN BRANCHED (LCB), BLOCK OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER - An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, T | 01-23-2014 |
20140094533 | ETHYLENE-BASED POLYMERS AND PROCESSES TO MAKE THE SAME - The invention provides a composition comprising a low density polyethylene (LDPE) obtained by free radical polymerization of ethylene, and wherein the LDPE has a GPC-Viscometer parameter “DPP” less than 1.3. | 04-03-2014 |
20140094583 | ETHYLENE-BASED POLYMERS AND PROCESSES TO MAKE THE SAME - An ethylene-based polymer, which is a low density polyethylene (LDPE), obtained by free radical polymerization of ethylene, and wherein the LDPE has a GPC parameter “LSP” less than 1.60. | 04-03-2014 |
20140113090 | POLYETHYLENE BLEND COMPOSITION SUITABLE FOR BLOWN FILM, METHOD OF PRODUCING THE SAME, AND FILMS MADE THEREFROM - The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film according to the present invention comprises the melt blending product of: (a) less than or equal to 4 percent by weight of a low density polyethylene (LDPE) having a density in the range of from 0.915 to 0.935 g/cm | 04-24-2014 |
20140134364 | POLYETHLENE BLEND COMPOSITION SUITABLE FOR BLOWN FILM, METHOD OF PRODUCING THE SAME, AND FILMS MADE THEREFORM - The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film, according to the present invention, comprises the melt blending product of: (a) from 5 percent or less by weight of a first low density polyethylene (first LDPE) having a density in the range of from 0.915 to 0.935 g/cm | 05-15-2014 |
20140135459 | HIGH PRESSURE LOW DENSITY POLYETHYLENE RESINS WITH IMPROVED OPTICAL PROPERTIES PRODUCED THROUGH USE OF HIGHLY ACTIVE CHAIN TRANSFER AGENTS - Disclosed is an ethylene-based polymer with a density from about 0.90 to about 0.94 in grams per cubic centimeter, with a molecular weight distribution (M | 05-15-2014 |
20140135462 | ETHYLENE-BASED POLYMERS AND PROCESSES TO MAKE THE SAME - The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene in the presence of at least one free-radical agent, and in the presence of a “metal alkyl-containing compound” selected from the group consisting of the following: i) at least one “Group II metal alkyl-containing compound,” ii) at least one “Group III metal alkyl-containing compound,” or iii) a combination of i) and ii). The invention also provides a composition comprising at least one ethylene-based polymer, prepared from a free-radical polymerization, and wherein the ethylene-based polymer has the following property: y>0.28567x−0.00032, wherein y=vinyl/1000 C, as determined by 1H NMR, and x=mol % polymerized ?-olefin, as determined by 13C NMR. The invention also provides a composition comprising at least one ethylene-based polymer, prepared from a free-radical polymerization, and wherein the ethylene-based polymer has the following properties: A) a vinyl content greater than, or equal to, 0.3 vinyl per 1000 C (total carbons), and B) a polymerized alpha-olefin level less than, or equal to, 1.00 mole percent, based on the total moles of polymerized monomers. | 05-15-2014 |
20140178614 | MONO- AND MULTI-LAYER FILMS AND ARTICLES MADE THEREFROM - Mono- and multi-layer films comprising a polyethylene composition which comprises the reaction product of ethylene and optionally one or more alpha olefin comonomers in the presence of a catalyst composition comprising a multi-metallic procatalyst via a solution polymerization process in at least one reactor; wherein said polyethylene composition is characterized by one or more of the following properties: a melt index, I | 06-26-2014 |
20140205823 | BIORIENTED POLYETHYLENE FILM - The present invention discloses a process for forming a biaxially oriented film. The process includes first selecting a polyolefin resin wherein said polyolefin resin comprises a linear low density polyethylene resin characterized by having from 9 to 35 weight percent of the total weight of linear low density polyethylene resin eluting from a CEF at a temperature greater than 97.0° C.; and further characterized by having a CDR of from 33 to 80 and a Mw Ratio of from 0.15 to 0.45. Next a film is formed from the polyolefin resin selected in the first step. Finally the film formed in the second step is oriented in a sequential manner. The films produced by this process are characterized by having an ultimate elongation at least 1.5 times greater in the MD as compared to the CD and the 2% secant modulus is a least 1.25 times greater in the CD as compared to the MD. The films are further characterized by having free residual shrinkage of less than 10% in the MD and less than 10% in the CD when exposed to a temperature of 90° C. for 10 minutes. | 07-24-2014 |
20140213735 | LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER - An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, T | 07-31-2014 |
20140255674 | MULTI-LAYERED SHRINK FILMS - A multi-layered shrink film comprising: at least three layers including two skin layers and at least one core layer; wherein at least one layer comprises from 10 to 100 weight percent units derived from one or more ethylene-based polymer compositions characterized by having Comonomer Distribution Constant in the range of from 75 to 220, a vinyl unsaturation of from 30 to 100 vinyls per one million carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from at least 2.5 to 15; a density in the range of 0.924 to 0.940 g/cm | 09-11-2014 |
20140316094 | LOW DENSITY ETHYLENE-BASED POLYMERS WITH BROAD MOLECULAR WEIGHT DISTRIBUTIONS AND LOW EXTRACTABLES - The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (12)>2.0 dg/min; b) a Mw(abs) versus 12 relationship: Mw(abs) | 10-23-2014 |
20140316096 | LOW DENSITY ETHYLENE-BASED POLYMERS WITH EXTRACTS AT LOWER MOLECULAR WEIGHTS - The invention provides an ethylene-based polymer comprising the following properties: A) a “weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w | 10-23-2014 |