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| Number | Title | Issue Date |
| 8173828 | Halogen substituted heteroatom-containing metallocene compounds for olefin polymerization Halogen substituted metallocene compounds are described and comprise one or more monocyclic or polycyclic ligands that are pi-bonded to the metal atom and include at least one halogen substituent directly bonded to an sp2 carbon atom at a bondable ring po... | 05/08/2012 |
| 8163854 | Preparation of supported silyl-capped silica-bound anion activators and associated catalysts A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same... | 04/24/2012 |
| 8163853 | Metallocene-substituted pyridyl amines, their metal complexes, and processes for production and use thereof This invention relates to new transition metal complexes for use in olefin polymerization and oligomerization. The active complex is a pyridine amide having a metallocenyl substituent as part of the ligand structure. The invention also relates to novel precursors fo... | 04/24/2012 |
| 8119725 | Fiber reinforced polypropylene composite interior trim cover panels A fiber reinforced polypropylene composite interior trim cover panel. The interior trim cover panel is molded from a composition comprising at least 30 wt % polypropylene based resin, from 10 to 60 wt % organic fiber, from 0 to 40 wt % inorganic filler, and optional... | 02/21/2012 |
| 8080493 | Heteropolyanions with late transition metal addenda atoms and process for their preparation The invention relates to polyoxometalates represented by the formula (An)m+ [M13X8RqOy]m− or solvates thereof, wherein A represents a cation, n is the number of the cations, m is the char... | 12/20/2011 |
| 8022005 | Halogen substituted heterocyclic heteroatom containing ligands-alumoxane activation of metallocenes This invention relates to an activator, catalyst system, and the use thereof. In one aspect, the catalyst system includes one or more polymerization catalysts and at least one activator. The activator comprises one or more heterocyclic heteroatom containing ligands ... | 09/20/2011 |
| 8008412 | Polymer production at supersolution conditions This invention relates to a process to polymerize olefins comprising contacting propylene, at a temperature of 65° C. to 150° C. and a pressure of 1.72 to 34.5 MPa, with: 1) a catalyst system comprising one or more activators and one or more nonmetallocene metal-c... | 08/30/2011 |
| 8003725 | Plasticized hetero-phase polyolefin blends This invention relates to hetero-phase polyolefin compositions comprising: a) 30 to 99.7 wt % of a polypropylene-based TPO comprising at least 50 wt % propylene and at least 10 wt % ethylene, and b) 0.1 to 20 wt % of one or more non-functionalized plasticizer, and c... | 08/23/2011 |
| 7998579 | Polypropylene based fibers and nonwovens The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin, a non-functionalized hydrocarbon plasticizer and a slip agent. ... | 08/16/2011 |
| 7989670 | Process to produce high viscosity fluids This invention relates to processes to produce liquid poly-alpha-olefins (PAOs) having a kinematic viscosity at 100° C. of more than 20 cSt in the presence of a metallocene catalyst with a non-coordinating anion activator and hydrogen. ... | 08/02/2011 |
| 7985801 | Fibers and nonwovens from plasticized polyolefin compositions The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer. ... | 07/26/2011 |
| 7981984 | Polymerization process This invention relates to a process to polymerize olefins comprising contacting a catalyst or catalyst system with olefin(s) in the presence of a fluorocarbon at a temperature above the onset melting point of the polymer. This invention also relates to a solu... | 07/19/2011 |
| 7951872 | Heterogeneous polymer blend with continuous elastomeric phase and process of making the same A heterogeneous polymer blend comprises a dispersed phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a continuous phase comprising a second polymer different from the first polymer. The second polymer has a crystallinity of l... | 05/31/2011 |
| 7928164 | Homogeneous polymer blend and process of making the same A homogeneous polymer blend comprises a thermoplastic first polymer having a crystallinity of at least 30%; and a second polymer having a crystallinity of more than 5% and being at least partially cross-linked. ... | 04/19/2011 |
| 7923491 | Graphite nanocomposites Elastomeric compositions comprising graphite nanoparticles (preferably graphene nanoparticles) and methods for making same. Such compositions are useful for tire innertubes and tire innerliners. ... | 04/12/2011 |
| 7875670 | Articles from plasticized polyolefin compositions The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer. ... | 01/25/2011 |
| 7871953 | Late transition metal catalysts for olefin oligomerizations As series of novel late transition metal catalysts for olefin oligomerization have been invented. The catalyst system includes a Group 8, 9 or 10 transition metal and an activator. The catalysts demonstrate high activity and selectivity for linear α-olefins. Prefer... | 01/18/2011 |
| 7858817 | Metallocene-substituted pyridyl amines, their metal complexes, and processes for production and use thereof This invention relates to new transition metal complexes for use in olefin polymerization and oligomerization. The active complex is a pyridine amide having a metallocenyl substituent as part of the ligand structure. The invention also relates to novel precursors fo... | 12/28/2010 |
| 7858814 | Ru-containing polyoxotungstates and process for their preparation The invention relates to polyoxometalates represented by the formula (An)m+ [Ru2L2(XW11O39)2WO2]m− or solvates thereof, wherein A is a cation, n is the number of the... | 12/28/2010 |
| 7858736 | Polymer recovery method This invention relates to a process comprising contacting an polymerization reactor effluent with a fluorinated hydrocarbon and thereafter recovering olefin polymer, where the fluorinated hydrocarbon is present at 5 volume % to 99 volume % based upon the volume of t... | 12/28/2010 |
| 7820868 | Transition metal substituted polyoxometalates and process for their preparation This invention relates to polyoxometalates represented by the formula (An)m+[My(H2O)pXzZ2W18O66]m−1 or solvates thereof, wherein A represents a cation act... | 10/26/2010 |
| 7812104 | Production of propylene-based polymers In a process for producing a propylene-based olefin homopolymer or copolymer, a monomer composition comprising propylene is contacted with a polymerization catalyst system under homogeneous polymerization conditions (such as solution, supersolution or supercritical ... | 10/12/2010 |
| 7799882 | Polymerization process This invention relates to a multiple phase polymerization process to produce polyolefins comprising contacting olefins and a homogeneous catalyst or catalyst system at a temperature between the melting point of the dry polymer and 80° C. below the melting point of ... | 09/21/2010 |
| 7799879 | Catalyst system and process for olefin polymerization The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+[Y]−, wherein [Y]− is a non-coordinating... | 09/21/2010 |
| 7795366 | Modified polyethylene compositions The present invention relates to a composition comprising more than 25 weight % (based on the weight of the composition) of one or more ethylene polymers having an Mw of 20,000 g/mole or more and at least 0.1 weight % of a liquid hydrocarbon modifier wher... | 09/14/2010 |
| 7767773 | Catalyst compounds are use thereof This invention relates to a transition metal catalyst compound represented by the structure: wherein: each X is, independently, a hydride, a halogen, a hydrocarbyl, a substituted hydrocarbyl, a halocarbyl, or a substituted ... | 08/03/2010 |
| 7763562 | Heteroatom bridged metallocene compounds for olefin polymerization This invention relates to a transition metal compound represented by the formula: wherein M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is: ... | 07/27/2010 |
| 7759415 | Method to make an article comprising polymer concentrate This invention relates to a method to make an article comprising the steps of combining a semi-amorphous polymer having a heat of fusion of less than 70 J/g with a plasticizer and optionally one or more additives, to produce a polymer concentrate, combining the poly... | 07/20/2010 |
| 7745544 | Catalytic epoxidation and hydroxylation of olefin/diene copolymers Disclosed are processes for preparing an epoxidized and/or hydroxylated α-olefin/diene copolymer materials such as ethylene/dicyclopentadiene. These processes comprise contacting in a reaction medium a) a copolymeric precursor component with b) a hydrogen peroxide ... | 06/29/2010 |
| 7741420 | Polymer production at supercritical conditions This invention relates to a process to polymerize olefins comprising contacting, under supercritical conditions, olefin monomers with a catalyst compound, an activator, optional comonomer, and optional hydrocarbon diluent or solvent. ... | 06/22/2010 |
| 7741417 | Preparation of polymerization catalyst activators utilizing indole-modified silica supports A process for polymerizing propylene is provided. The process comprises contacting propylene and optionally one or more monomers with a catalyst system comprising a bis-indenyl Group 4 metallocene compound supported on silica, the silica treated with one or more org... | 06/22/2010 |
| 7741240 | Transition metal compounds for olefin polymerization and oligomerization This invention relates to new transition metal catalyst compounds represented by the formula (I): where: M and M′ are, independently, a group 8, 9, 10 or 11 transition metal, preferably Ni, Co, Pd, Cu or Fe; | 06/22/2010 |
| 7723447 | Polymerization processes The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent. ... | 05/25/2010 |
| 7700699 | Polymerization process This invention is directed to processes of making polymer in the presence of a fluorinated hydrocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and allows for the ... | 04/20/2010 |
| 7683129 | Films from polymer blends This invention relates to a film comprising a heterogeneous blend of: 1) from 60 to 99 wt % of one or more semi-crystalline polymers; and 2) from 1 to 40 wt % of one or more semi-amorphous polymers; where the blend has: an MFR of 0.5 to 100 dg/min, a haze of 20% or ... | 03/23/2010 |
| 7662895 | Syndiotactic propylene elastomers Disclosed herein is an elastomeric composition comprising propylene, the composition further comprising a peak melting point temperature below about 110° C., a tensile set of 40% or less, and greater than or equal to about 60% [r]dyads, based on the total number of... | 02/16/2010 |
| 7662892 | Impact copolymers This invention relates to a continuous process to prepare olefin impact copolymers comprising producing a semi-crystalline olefin polymer in a first reactor and then transferring the reactor contents to a second reactor where a low crystallinity olefin polymer is pr... | 02/16/2010 |
| 7662885 | Method to make an article comprising polymer concentrate This invention relates to a method to make an article comprising the steps of combining a semi-amorphous polymer having a heat of fusion of less than 70 J/g with a plasticizer and optionally one or more additives, to produce a polymer concentrate, combining the poly... | 02/16/2010 |
| 7652094 | Plasticized polyolefin compositions The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized plasticizer; wherein the non-functionalized plasticizer may comprise C6 to C200 paraffins (including branched and normal paraf... | 01/26/2010 |
| 7652093 | Plasticized polyolefin compositions The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer. ... | 01/26/2010 |
