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| Number | Title | Issue Date |
| 7956132 | Production of telechelic compounds by metathesis depolymerization Telechelic unsaturated polymers suitable for conversion to functionalized derivatives such as polyols are prepared by metathesis of an unsaturated copolymer formed by addition polymerization of ethylene, a diene or alkyne and, optionally, one or more C3.20 | 06/07/2011 |
| 7256240 | Process of making polymer blends In a process for producing a polymer blend, at least one first monomer is polymerized in a first slurry phase reaction zone in the presence of a supported first catalyst to produce a thermoplastic first polymer having a crystallinity of at least 30%. At least part o... | 08/14/2007 |
| 7198686 | Foamable coupling for lamp assembly and methods for using the coupling A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foama... | 04/03/2007 |
| 7019082 | Polymers, supersoft elastomers and methods for preparing the same Embodiments of the present invention include a material comprising a polymer having a modulus of elasticity less than 105 Pa and a material comprising a polymer having a modulus of elasticity of less than 5×104 Pa. Embodiments also include a m... | 03/28/2006 |
| 6822051 | High density polyethylene melt blends for improved stress crack resistance in pipe The invention provides a polyethylene composition comprising a melt blend of (i) a bimodal high molecular weight high density polyethylene resin having a NCTL stress crack resistance of about 200 hours or greater, and (ii) a high density polyethylene resin selected ... | 11/23/2004 |
| 6800688 | Modified polyolefin resin, modified polyolefin resin composition, and uses thereof A resin which has excellent adhesion to nonpolar substrates, is nontacky, and has satisfactory solubility in aromatic or nonaromatic solvents and satisfactory compatibility with other resins. The resin is a modified polyolefin resin having a weight-average molecular... | 10/05/2004 |
| 6797784 | Thermoplastic resins with a low proportion of coarse particles The invention relates to homopolymers and/or copolymers containing | 09/28/2004 |
| 6750289 | Functionalized thermoplastic elastomer A thermoplastic elastomer produced without a hydrogenation step is functionalized utilizing a free radical initiator and a functionalizing monomer having at least one point of unsaturation. The base polymers can be produced by copolymerizing an α-olefin capable of ... | 06/15/2004 |
| 6579922 | Polyolefins and uses thereof Provided is a high density multimodal polyethylene, having a shear ratio (SR) of 18 or more and comprising at least 20% by weight of a high molecular weight fraction, which high molecular weight fraction has: (a) a density (p) of 0.930 g/cm3 or less... | 06/17/2003 |
| 6569948 | Polyethylene pipe method Provided is a high density multimodal polyethylene, having a shear ratio (SR) of 18 or more and comprising at least 20% by weight of a high molecular weight fraction, which high molecular weight fraction has: (a) a density (p) of 0.930 g/cm3 or less... | 05/27/2003 |
| 6566446 | Ethylene interpolymer polymerizations A new process of interpolymerizing ethylene interpolymer products having improved properties, such as increased onset of crystallization temperature, is disclosed. Preferably, the process comprises interpolymerizing a first homogeneous ethylene/alpha-olef... | 05/20/2003 |
| 6545088 | Metallocene-catalyzed process for the manufacture of EP and EPDM polymers Ethylene, an -olefin and, optionally, a diene monomer are polymerized in a process comprising the step of contacting (1) ethylene, (2) at least one C3 -C20 aliphatic -olefin, (3) optionally, at least one C4 -... | 04/08/2003 |
| 6500535 | Heat resistant, low dielectric polymers, and films, substrates, electronic parts and heat resistant resin molded parts using the same The invention provides a heat-resistant, low-dielectric polymeric material that is preferably a copolymer in which a non-polar -olefin base polymer segment and a vinyl aromatic copolymer segment are chemically combined with each other, and that is ... | 12/31/2002 |
| 6495629 | Modified polyolefin resin composition and uses thereof A novel chlorine-free modified polyolefin resin composition with excellent adherence to nonpolar substrates, excellent solubility in solvents, excellent compatibility with other resins, and without tack after painting and drying is obtainable by graft mod... | 12/17/2002 |
| 6433095 | High density multimodal polyethylene Provided is a high density multimodal polyethylene, having a shear ratio (SR) of 18 or more and a HLMI of 15 g/10 mins or less comprising at least 20% by weight of a high molecular weight fraction, which high molecular weight fraction has: (a) a density (... | 08/13/2002 |
| 6426388 | Modified polyolefin composition and uses thereof Disclosed is a novel chlorine-free modified polyolefin composition with excellent adherence to polyolefin substrates, with excellent solventresistance, oil resistance and weather resistance, with no tack, and also with excellentcohesion, obtainable by usi... | 07/30/2002 |
| 6414102 | Linear copolymers of alpha-olefins and divinylbenzene having narrow molecular weight and composition distributions, graft copolymers derived therefrom, and process for preparing same The invention relates to polyolefin copolymers (I) ##STR1## and to graft copolymers (II) ##STR2## which are prepared from the copolymers (I), wherein the copolymers (I) are linear copolymers containing divinylbenzene comonomer units selected from the... | 07/02/2002 |
| 6407185 | Process for the preparation of a composition containing ethylene polymers, composition containing ethylene polymers and use thereof Process for the preparation of a composition containing ethylene polymers comprising a polymer of melt index MI2 of 5 to 1000 g/10 min and a polymer of melt index MI5 of 0.01 to 2 g/10 min, the ratio of these indices being from 500 t... | 06/18/2002 |
| 6399683 | Resin composition for extruded forms A resin composition for extruded forms that has improved workability, and excellent properties with respect to transparency, heat resistance, low-temperature resistance, etc. The composition contains 50 to 99% by weight of component A, which is a copolyme... | 06/04/2002 |
| 6399708 | Grafted and crosslinkable pulverulent thermoplastic polyolefin composition which has elasticity and flexibility properties A bulk polymerized grafted and crosslinkable thermoplastic polyolefin powder composition having elasticity and flexibility properties, which is in the form of a powder intended for the production of flexible coatings by free flow over a hot mold, characte... | 06/04/2002 |
| 6395839 | Grafted and crosslinkable pulverulent thermoplastic polyolefin composition which has elasticity and flexibility properties A bulk polymerized grafted and crosslinkable thermoplastic polyolefin powder composition having elasticity and flexibility properties, which is in the form of a powder intended for the production of flexible coatings by free flow over a hot mold, characte... | 05/28/2002 |
| 6365682 | Process for the production of propylene terpolymers A process for producing terpolymers of propylene, comprising a) feeding into a slurry reactor a reaction mixture containing 50-85 w-% of propylene, 1-10 w-% of ethylene, 15-40 w-% of another C4 -C8 alpha-olefin, a catalyst system mai... | 04/02/2002 |
| 6359081 | Block copolymer with condensation or vinyl polymer, functions imparting, and lower cohesive E segments A functional block copolymer useful as a compatibilizing agent for a blend of a condensation polymer and vinyl polymer comprises segments of a condensation polymer and a vinyl polymer derived from a reactive functional group-containing monomer or a functi... | 03/19/2002 |
| 6355735 | Semi-interpenetrating polymer network from epoxy monomer and olefin A semi-interpenetrating polymer network including at least one epoxy monomer, at least one olefin monomer forming a co-monomer mixture with the epoxy monomer and a catalytic amount of at least one palladium compound uniformly distributed in said co-monome... | 03/12/2002 |
| 6344522 | Process for the preparation of a composition containing ethylene polymers, composition containing ethylene polymers and use thereof Process for the preparation of a composition containing ethylene polymers comprising a polymer of melt index MI2 of 5 to 1000 g/10 min and a polymer of melt index MI5 of 0.01 to 2 g/10 min, the ratio of these indices being from 500 t... | 02/05/2002 |
| 6316546 | Ethylene polymer film resins A class of relatively high molecular weight, high density ethylene polymers (HMW-HDPE) is disclosed capable of being formed into thin films of high strength, such polymers having a density of at least about 0.925 g/cc, a flow index (I21) no hig... | 11/13/2001 |
| 6265493 | Polyolefin graft copolymers derived from linear copolymers of alpha-olefins and divinylbenzene having narrow molecular weight and composition distributions and process for preparing same The invention relates to a process for preparing polyolefin graft copolymers (II) ##STR1## from linear and well defined polyolefin copolymers (I) ##STR2## containing divinylbenzene comonomer units, wherein R, in formulas I and II, is a C1 ... | 07/24/2001 |
| 6239242 | Vinylaromatic and olefin pseudoblock polymers There are a number of recent developments relating to co- and homo-polymers of vinyl aromatic monomers. There are syndiotactic polymers of styrene, there are pseudo random polymers of styrene and ethylene. The present invention seeks to provide novel pseu... | 05/29/2001 |
| 6225410 | Ethylene/-olefin copolymer and process for preparing the same Ethylene/C6-8 alpha-olefin copolymers are characterized by melt tension, flow activation energy and haze. The copolymers have excellent moldability and produce films of excellent transparency and mechanical strength.... | 05/01/2001 |
| 6221974 | Process for the preparation of creep-resistant polypropylene block copolymers The invention relates to a process for the preparation of a creep-resistant polypropylene by means of the following steps: (a) copolymerizing propylene and ethylene into a random copolymer at 40 to 110° C. using: a catalyst system of the above-mentioned ... | 04/24/2001 |
| 6194520 | Ethylene polymer resins for blow molding applications A class of relatively high molecular weight, high density ethylene polymer blends is disclosed capable of being blow molded with excellent processability into articles, e.g., bottles, of superior mechanical and other properties, such blends having a densi... | 02/27/2001 |
| 6191227 | Polyethylene resin, and pipes and pipe joints using same A polyethylene resin superior in both moldability and long-term physical properties and suitable for both pipe and pipe joint, the polyethylene resin having a density of 0.915 to 0.955 g.multidot.cm-3, a melt flow rate of not more than 0.20 dg.... | 02/20/2001 |
| 6160039 | Process for the production of masterbatches containing short fibres or pulps This invention relates to a process for the production of masterbatches which contain short fibres or pulps and which may be used for the production of polymer compositions or rubber compositions.... | 12/12/2000 |
| 6156836 | Polypropylene resin composition This invention provides polypropylene resin compositions which have sharply improved balance of physical properties in comparison with the related polypropylene materials, are materials that can be used in both interior and exterior parts of automobiles, ... | 12/05/2000 |
| 6156845 | Polyolefin composition and method of making An olefin (co-)polymer composition including 0.01 to 5.0 weight parts of high molecular weight polyethylene which is an ethylene homopolymer or an ethylene-olefin copolymer containing 50 weight % or more of an ethylene polymerization unit; and 100 weight ... | 12/05/2000 |
| 6136924 | Process for the preparation of a composition containing ethylene polymers, and use thereof Process for the preparation of a composition containing ethylene polymers comprising a polymer of melt index MI2 of 5 to 1000 g/10 min and a polymer of melt index MI5 of 0.01 to 2 g/10 min, the ratio of these indices being from 500 t... | 10/24/2000 |
| 6090893 | Polyethylene composition The invention relates to polyethylene compositions containing 85-99.5 weight % of component A, which is a linear (co)polymer of ethylene having a bimodal weight distribution, and 0.5-15 weight % of component B having a unimodal molecular weight distributi... | 07/18/2000 |
| 6075116 | Polyamide resin composition The present invention provides a highly impact resistant polyamide composition which comprises a polyamide resin and an acid modification product of a metallocene catalyzed polyolefin elastomer. The invention also provides a less hygroscopic and highly im... | 06/13/2000 |
| 6015854 | Polypropylene impact copolymers with high clarity The present invention teaches propylene-ethylene copolymers of about 5 to about 100 dg/min melt flow that have a homopolymer phase combined with a copolymer rubber phase in which the ethylene content of the rubber is between about 75 to about 95% w and a ... | 01/18/2000 |
| 6015862 | Functionalized -olefin/para-alkylstyrene terpolymers Functionalized terpolymers of two different -olefin and para-alkylstyrene are disclosed, wherein the functionalized terpolymers have a substantially homogeneous compositional distribution represented by the formula: ##STR1## in which R | 01/18/2000 |
