Patents Examined by Jeffrey Lenihan
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Patent number: 8158725Abstract: A method for preparing a functionalized polymer, the method comprising providing a reactive polymer, where the reactive polymer includes a carbon anion, an oxygen anion, a sulfur anion, or a nitrogen anion, reacting the reactive polymer with carbon disulfide to form a polymer including a dithio carboxyl group, and reacting the polymer including the dithio carboxyl group with a blocking agent.Type: GrantFiled: August 22, 2006Date of Patent: April 17, 2012Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, William L. Hergenrother
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Patent number: 8138269Abstract: Isotactic polypropylene ethylene-propylene copolymer blends and in-line processes for producing them. The blends may have between 1 and 50 wt % of isotactic polypropylene with a melt flow rate of between 0.5 and 20,000 g/10 min and a melting peak temperature of 145° C. or higher, and wherein the difference between the DSC peak melting and the peak crystallization temperatures is less than or equal to 0.5333 times the melting peak temperature minus 41.333° C., and between 50 and 99 wt % of ethylene-propylene copolymer including between 10 wt % and 20 wt % randomly distributed ethylene with a melt flow rate of between 0.5 and 20,000 g/10 min, wherein the copolymer is polymerized by a bulk homogeneous polymerization process, and wherein the total regio defects in the continuous propylene segments of the copolymer is between 40 and 150% greater than a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process.Type: GrantFiled: December 18, 2008Date of Patent: March 20, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Gabor Kiss, Patrick Brant, Robert Patrick Reynolds, Jr., Aspy K. Mehta, Manika Varma-Nair, John W. Chu, Steven P. Rucker
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Patent number: 8129473Abstract: A polymer blend includes a first random copolymer of propylene and one or more C2-C20 ?-olefins other than propylene having a melting point of above 116° C. and up to about 145° C. and which constitutes from about 60 weight percent to about 95 weight percent of the composition, and a second random copolymer of propylene and one or more C2-C20 ?-olefins other than propylene having a melting point of from about 70° C. to no more than 116° C. and which constitutes from about 5 weight percent to about 40 weight percent of the composition. The polymer blend includes a xylene soluble fraction having a weight average molecular weight of above about 100 kg/mol and an intrinsic viscosity of above about 1.0 dl/g.Type: GrantFiled: May 10, 2004Date of Patent: March 6, 2012Assignee: Lummus Novolen Technology GmbHInventors: Ralph-Dieter Maier, Vassilios Galiatsatos, Dean Anthony Roessner, Susan Patricia Setty
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Patent number: 8124693Abstract: Various novel block cationomers comprising polyisobutylene (PIB) and poly(2-dimethylamino)ethyl methacrylate) (PDMAEMA) segments have been synthesized and characterized. The specific targets were various molecular weight diblocks (PDMAEMA+) and triblocks (PDMAEMA+-b-PIB-b-PDMAEMA+) with the PIB blocks in the DPn=50-200 (Mn=3,000-9,000 g/mol) range connected to blocks of PDMAEMA+ cations in the DPn=5-20 range. The overall synthetic strategy for the preparation of these block cationomers comprised four steps: 1) Synthesis by living cationic polymerization of mono- and di-allyltelechelic polyisobutylenes, 2) End group transformation to obtain PIBs fitted with termini capable of mediating the atom transfer radical polymerization (ATRP) of DMAEMA, 3) ATRP of DMAEMA and 4) Quaternization of PDMAEMA to PDMAEMA+I? by CH3I. Kinetic and model experiments provided guidance to develop convenient synthesis methods.Type: GrantFiled: November 28, 2006Date of Patent: February 28, 2012Assignee: The University of AkronInventors: Joseph P. Kennedy, Zheng Fang
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Patent number: 8106129Abstract: The invention relates to a method for producing meth)acrylate-based ABA triblock copolymers in which the A blocks are amine-functionalized.Type: GrantFiled: April 12, 2007Date of Patent: January 31, 2012Assignee: Evonik Röhm GmbHInventors: Sven Balk, Gerd Loehden, Christine Miess, Christine Troemer, Monika Maerz
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Patent number: 8076421Abstract: Film layers made from formulated polymer compositions are disclosed. Film layers made from such formulated compositions have surprisingly good (for example, low) water vapor transmission rates and are particularly useful for packaging dry goods such as cereal. The polymer compositions preferably have at least one homogeneous ethylene homopolymer and at least one heterogeneously branched ethylene polymer. The homogeneous ethylene homopolymer has a molecular weight much higher than that of the heterogeneously branched ethylene polymer, although the density of each is preferably higher than about 0.95 g/cm3.Type: GrantFiled: March 18, 2005Date of Patent: December 13, 2011Assignee: Dow Global Technologies LLCInventors: Mridula Kapur, David A. Eversdyk, Wenbin Liang, Kenneth S. Laverdure, David T. Gillespie
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Patent number: 8063149Abstract: A polymer blend including: (i) a fluoroolefin polymer prepared by a process, including contacting in a first reaction zone an initiator, 2,3,3,3-tetrafluoro-1-propene, and optionally, at least one first ethylenically unsaturated comonomer capable of copolymerizing therewith, wherein contacting is carried out at a first temperature, pressure and length of time sufficient to produce the fluoroolefin polymer; and (ii) an acrylic polymer prepared by a process, including contacting in a second reaction zone an initiator, at least one acrylic monomer selected from the group consisting of: acrylic acid, methacrylic acid, acrylate ester, methacrylate ester, and a mixture thereof, and optionally, at least one second ethylenically unsaturated comonomer capable of copolymerizing therewith, wherein contacting is carried out at a second temperature, pressure and length of time sufficient to produce the acrylic polymer. Processes for preparing the polymer blends are also provided.Type: GrantFiled: December 19, 2007Date of Patent: November 22, 2011Assignee: Honeywell International Inc.Inventors: George J Samuels, Gregory J Shafer
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Patent number: 8063139Abstract: A method comprising preparing a reaction mixture comprising a styrene monomer, an antioxidant, and a reaction rate improving additive, contacting the reaction mixture with an antioxidant reactive compound, and placing the reaction mixture under conditions suitable for polymerization of the styrene monomer to a styrenic polymer wherein the polymerization occurs at an overall reaction rate that is increased by equal to or less than 20% when compared to an otherwise similar polymerization process carried out in the absence of the reaction rate improving additive A method comprising preparing a reaction mixture comprising a styrene monomer, an elastomer, an antioxidant, a sodium or calcium salt of an organic acid, and an initiator; and placing the reaction mixture under conditions suitable for polymerization of the styrene monomer to a styrenic polymer, wherein the sodium or calcium salt of an organic acid protects the initiator such that the polymerization is carried out at a reaction rate greater than would othType: GrantFiled: January 22, 2009Date of Patent: November 22, 2011Assignee: Fina Technology IncInventor: David Knoeppel
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Patent number: 8063140Abstract: A moisture-curable, graft-modified resin composition includes at least one thermoplastic polymer (i) and at least one silyl group containing polymer (ii) possessing at least one hydrolyzable silyl group that is bonded to the polymer through a linking group containing at least one heteroatom selected from the group consisting of oxygen and nitrogen, each of polymers (i) and (ii) having grafted thereto at least one same or different silane (iii) which, prior to being grafted, possesses at least one reactive carbon-carbon unsaturated bond.Type: GrantFiled: June 13, 2007Date of Patent: November 22, 2011Assignee: Momentive Performance Materials Inc.Inventors: Philbert E. Ramdatt, Roy M. Griswold, Eric R. Pohl
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Patent number: 8058350Abstract: A composition comprising: a) 50% to 90% of a propylene (co)polymer having: (i) a polydispersity index >3, (ii) melt flow rate >1 dg/min, and (iii) fraction soluble in xylene at 25° C. >1%, b) 5% to 25% of an ethylene/?-olefin copolymer having: (i) ethylene content over 50% but under 92% by mol, (ii) intrinsic viscosityover 1.2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, and (iv) enthalpy of fusion under 62 J/g; c) 5% to 25% of a propylene/ethylene copolymer having: (i) propylene content over 50% but under 92% by mol, (ii) intrinsic viscosity over 2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, (iv) product of reactivity ratios r1×r2 u nder 2, and (v) enthalpy of fusion under 45 J/g; wherein the weight ratio between component b and the sum of components b) and c) is 0.5 to 0.9.Type: GrantFiled: November 3, 2004Date of Patent: November 15, 2011Assignee: Basell Poliolefine Italia, s.r.l.Inventors: Dominic A. Berta, Giampaolo Pellegatti
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Patent number: 8053527Abstract: A melt-mixed composition of non-melt flowable polytetrafluoroethylene (PTFE) and melt-fabricable perfluoropolymer is provided that exhibits thixotropy at increasing shear rate in the molten state and high elongation at break even at PTFE concentrations well above 4 wt %, based on the combined weight of the PTFE and the perfluoropolymer, e.g. at least 200% up to at least 30 wt % PTFE, the composition also exhibiting the structure of a dispersion of submicrometer-size particles of the PTFE in a continuous phase of the melt-fabricable perfluoropolymer.Type: GrantFiled: January 12, 2010Date of Patent: November 8, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Heidi Elizabeth Burch, Sundar Kilnagar Venkataraman, Ralph Munson Aten
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Patent number: 8043424Abstract: Aqueous coating composition comprising an oxidatively drying resin and an alkali-soluble acrylate having an acid number of at least 15 mg KOH/g in a content of at least 1.5 wt. %. Optionally a second acrylate can also be used, such as a polyurethane acrylate.Type: GrantFiled: May 30, 2006Date of Patent: October 25, 2011Assignee: Akzo Nobel Coatings International B.V.Inventors: Detlef Thiel, Irene Buss
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Patent number: 8034879Abstract: The invention relates to a process for preparing CABAC or ACBCA pentablock copolymers based on (meth)acrylate with an OH functionalization of the A blocks.Type: GrantFiled: August 11, 2008Date of Patent: October 11, 2011Assignees: Evonik Roehm GmbH, Henkel AG&Co. HGAAInventors: Sven Balk, Gerd Loehden, Holger Kautz, Volker Erb, Uwe Franken, Georg Kinzelmann, Thomas Moeller
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Patent number: 8026305Abstract: Polymer articles and processes of forming the same are described herein. The processes generally include providing an ethylene based polymer, blending the ethylene based polymer with a modifier to form modified polyethylene and forming the modified polyethylene into a polymer article, wherein the polymer article exhibits a haze that is at least about 10% less than a polymer article prepared with a similarly modified polyethylene.Type: GrantFiled: October 1, 2008Date of Patent: September 27, 2011Assignee: Fina Technology IncInventors: Michael McLeod, John Ashbaugh, Cyril Chevillard, Gerhard Guenther, Ruby L. Curtis, Jay Nguyen, Juan Aguirre, Raleigh McBride, Ben Hicks
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Patent number: 8022154Abstract: This invention relates to an ethylene polymer comprising ethylene and up to 5 mole % of at least one comonomer, wherein the ethylene polymer has an Mw, of 10,000 to 50,000, an Mw/Mn of between 1.5 to 4.5, a density of at least 0.925 g/cc, an unsaturation level of less than 1 per 1000 carbons, a melting point of at least 120° C., a Tc of greater than Z° C., where Z=0.501×(density in kg/m3)?367, and a Brookfield viscosity o at 140° C. of 100,000 mPas or more.Type: GrantFiled: November 6, 2008Date of Patent: September 20, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna J. Crowther, Kuangyao Brian Peng
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Patent number: 8013063Abstract: The present invention relates to acryl-silicone hybrid impact modifiers, the method of their manufacture, and vinyl chloride resin compositions containing the above. The acryl-silicone hybrid impact modifier of the present invention contains a seed obtained through emulsion copolymerization of vinyl monomers and hydrophilic monomers; an acryl-silicone hybrid rubber core covering the seed in which a polyorganosiloxane rubber phase is dispersed locally onto the inner part and surface of the acrylic rubber core containing alkyl acrylate polymers and a shell covering the above rubber core and containing alkyl methacrylate polymers. Thermoplastic resins containing the above, particularly by being added to vinyl chloride resins, they have effects of granting superior impact resistance, weatherability, and high gloss.Type: GrantFiled: May 13, 2004Date of Patent: September 6, 2011Assignee: LG Chem, Ltd.Inventors: Kwang-jin Lee, Jeong-heon Ahn, Hye-kyong Lee
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Patent number: 8008397Abstract: Provided are a rubber latex having a multi-layer structure, wherein an inner-layer rubber latex has a refractive index greater than that of an outer-layer rubber latex, a graft copolymer prepared from the rubber latex, a polyvinyl chloride (PVC) resin blend containing the graft copolymer, and a method of preparing the rubber latex. The PVC resin blend containing the graft copolymer including the rubber latex according to the present invention has improved color property and low-temperature impact strength than conventional PVC resins.Type: GrantFiled: August 8, 2006Date of Patent: August 30, 2011Assignee: LG Chem, Ltd.Inventors: Yoon Ho Kim, Wonsuk Jang, Geon Soo Kim
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Patent number: 7989551Abstract: A process for the polymerization of one or more addition polymerizable monomers to form a copolymer comprising multiple regions or segments of differentiated polymer composition or properties comprising contacting an addition polymerizable monomer or mixture of monomers under addition polymerization conditions with a composition comprising at least one olefin polymerization catalyst, a cocatalyst and a chain shuttling agent, said process being characterized by formation of at least some of the growing polymer chains under differentiated process conditions such that two or more blocks or segments formed within at least some of the resulting polymer are chemically or physically distinguishable.Type: GrantFiled: January 30, 2006Date of Patent: August 2, 2011Assignee: Dow Global Technologies LLCInventors: Daniel J. Arriola, Edmund M. Carnahan, Marilyn Bokota, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel, Pamela J. Stirn
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Patent number: 7981967Abstract: The invention is directed to a composition suitable for high gloss air quenched blown films. The films are comprised of from 2 to 15 percent by weight of a substantially isotactic propylene-based copolymer having a melt flow rate of at least 5 g/10 minutes and having from 8 to 21 mole percent units derived from an alpha olefin; and from 85 to 98 percent by weight of an ethylene-based copolymer having a melt index of from 0.1 to 9 g/10 minutes. An air quenched blown film made from the inventive composition exhibits a value for gloss greater than the value for gloss exhibited by an air quenched blown film made solely from the ethylene-based copolymer.Type: GrantFiled: April 13, 2006Date of Patent: July 19, 2011Assignee: Dow Global Technologies LLCInventors: Li-Min Tau, Shaun Parkinson, Jesus Nieto
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Patent number: 7981966Abstract: There is obtained a rubber composition excellent in processability of unvulcanized compounded rubber, excellent in wear resistance and wet skid resistance of vulcanized rubber, low in rolling resistance, and suitable for tire applications, particularly for tire tread applications in which importance is given to low fuel consumption and safety. A rubber composition mainly comprising (I) 0.5 to 35% by weight of a conjugated diene-based (co)polymer rubber having an amino group and an alkoxysilyl group on a polymer chain and having a weight average molecular weight of 1,000 to 90,000, and (II) 99.5 to 65% by weight of a conjugated diene-based (co)polymer rubber having a weight average molecular weight of 100,000 to 2,000,000 (with the proviso that (I)+(II)=100% by weight).Type: GrantFiled: March 2, 2005Date of Patent: July 19, 2011Assignee: JSR CorporationInventors: Naokazu Kobayashi, Kouta Taniguchi, Toshihiro Tadaki