Polymer Substrate Derived From An Unsaturated Carboxylic Acid Ester Patents (Class 525/85)
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Patent number: 7514502Abstract: The present invention relates to an acrylonitrile (ASA) type thermoplastic resin composition with excellent weatherability and appearance properties, and more particularly, to an acrylate-styrene-acrylonitrile type thermoplastic resin composition comprising a) an acrylate-styrene-acrylonitrile graft copolymer; b) a butadienc-acrylonitrile methylmethacrylate graft copolymer; c) a copolymer of aromatic vinyl compound and vinylcyanide compound; and d) an alkyl acrylate copolymer, which has remarkably improved appearance properties such as scratch resistance, color (color stability) and gloss as well as excellent basic properties and weatherability.Type: GrantFiled: November 6, 2003Date of Patent: April 7, 2009Assignee: LG Chem, Ltd.Inventors: Dong-sung Kim, Chan-hong Lee, Seong-lyong Kim, Han-jong You
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Publication number: 20090086319Abstract: The present invention provides an optical film that includes i) a (meth)acrylic resin, and 5 to 45 parts by weight of ii) a graft copolymer, prepared by grafting a (meth)acrylic resin onto a copolymer of (meth)acrylic rubber and aromatic vinyl compound, based on 100 parts by weight of the i) (meth)acrylic resin, and an electronic device including the optical film.Type: ApplicationFiled: October 1, 2008Publication date: April 2, 2009Applicant: LG Chem, Ltd.Inventors: Tae-Bin Ahn, Yong-Yeon Hwang, Min-Jung Kim, Jae-Hyun Jeong, Ki-Heon Song
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Publication number: 20090043047Abstract: A resin composition having good scratch resistance includes about 5 to about 50 parts by weight of core-shell graft resin (A) and about 95 to about 50 parts by weight of resin (B) which includes about 40 to about 100% by weight of (meth)acrylic acid alkyl ester. The outer shell of the core-shell graft resin (A) comprises (meth)acrylic acid alkyl ester.Type: ApplicationFiled: October 17, 2008Publication date: February 12, 2009Applicant: Cheil Industries Inc.Inventors: Doo Han HA, Bong Jae JEONG
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Publication number: 20080308967Abstract: The present invention relates to processing of thermoplastic polymers, for example to injection molding and extrusion. More particularly the present invention relates to extrusion of polyolefin resins, especially polyethylene resin, and could be used in manufacture of polymer profile, isolating jacketing at electrical cable, polymer tube and film in blown film process. The present invention is directed to increase rate of defect free extrusion. Other objects of the present invention are: to lower cost of the used additives, to lower amount of additives during extrusion of polymer melts with fillers, to simplify design of equipment, which is used for processing of polymeric materials, to save energy, which is necessary for processing, to improve product appearance and its mechanical performances.Type: ApplicationFiled: October 21, 2004Publication date: December 18, 2008Inventor: Oleg Leonidovich Kulikov
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Publication number: 20080269413Abstract: Disclosed is a resin composition having excellent impact resistance and resistance to whitening by impact without deteriorating excellent transparency of a methacrylic resin. Specifically, an impact resistance modifier composed of a multilayered polymer having at least three layers, namely an innermost-layer polymer derived from an alkyl methacrylate, an intermediate-layer polymer derived from an alkyl acrylate and an outer-layer polymer having its Tg within the range of 20 to 80° C., wherein mass average particle diameter of the intermediate-layer polymer is 200 to 300 nm and the mass ratio of each layer is within an appropriate range, is blended with a methacrylic resin.Type: ApplicationFiled: March 28, 2005Publication date: October 30, 2008Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Toshio Nagasaka, Toshimi Yanai, Hiroki Hatakeyama
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Patent number: 7432320Abstract: There is provided a vinyl chloride resin composition, which is excellent in processability and can produce a processed article having excellent physical property or a formed molding having excellent property. A processing aid having specific viscosity of at least 0.5 is combined with a vinyl chloride resin, wherein the aid is obtained by polymerizing 1 to 50 parts by weight of a monomer mixture (B) comprising 0 to 49% by weight of methyl methacrylate, 51 to 100% by weight of at least one monomer selected from the group consisting of a methacrylate ester except methyl methacrylate and an acrylate ester, and 0 to 20% by weight of a vinyl monomer copolymerizable therewith, in the presence of a latex of a (co)polymer having specific viscosity of at least ?sp 0.Type: GrantFiled: December 10, 2003Date of Patent: October 7, 2008Assignee: Kaneka CorporationInventors: Noriko Sakashita, Yasuhiro Miki, Akira Takaki
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Patent number: 7420016Abstract: In order, in the case of a moulding composition for the production of sanitary-ware components, comprising a methyl-methacrylate-based syrup and from 50 to 85%, expressed in terms of the moulding composition, of an inorganic filler, to obtain an improvement in the scratch-proofness and the abrasion resistance of the shaped components which are obtained therefrom, it is proposed that the composition furthermore comprise elastomer particles or elastomer particle aggregates having a particle size <100 ?m in an amount in the range of 5% by weight to <20% by weight, expressed in terms of the mass of the syrup.Type: GrantFiled: August 11, 2006Date of Patent: September 2, 2008Assignee: BLANCO GmbH + Co KGInventors: Andreas Hajek, Thomas Heck, Stefan Harke, Thomas Wilhelm
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Patent number: 7417088Abstract: The present invention relates to a thermoplastic resin composition, more precisely, a thermoplastic resin composition with enhanced impact resistance, gloss, weather resistance and scratch resistance, compared with the conventional thermoplastic resin compositions, by containing an acrylate-styrene-acrylonitrile (ASA) graft copolymer, an aromatic vinyl compound and vinyl cyan compound copolymer, an alkyl methacrylate/aromatic vinyl compound/vinyl cyan compound terpolymer and a di-block copolymer (aromatic vinyl compound/vinyl cyan compound—alkyl methacrylate/aromatic vinyl compound/vinyl cyan compound).Type: GrantFiled: August 29, 2006Date of Patent: August 26, 2008Assignee: LG Chem, Ltd.Inventors: Tae-bin Ahn, Hyun-taek O, Jung-tae Park, Min-jung Kim, Keun-hoon Yoo
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Patent number: 7396877Abstract: Disclosed is a resin composition comprising (A) 100 parts by weight of a base resin comprising a rubber-modified styrene-containing graft copolymer and a styrene-containing copolymer; (B) 0.5-8 parts by weight of an acrylic rubber graft copolymer resin having an average particle size of 0.1-0.5 ?m; and (C) 0.5-8 parts by weight of a graft copolymer resin comprising an ethylene ?-olefinic copolymer rubber having an average particle size of 0.1-0.8 ?m. The thermoplastic resin composition of the present invention greatly improves chemical resistance to insulating materials, such as urethane foam, or foaming agent compounds, such as freon (CFC-11, HCFC-141b, HFC-245fa, HFC-245eb, HFC-245ca, HFC-356mffm) and cyclopentane and offers superior impact strength, whiteness and processability. It can be useful for extrusion sheets of refrigerator interiors.Type: GrantFiled: October 12, 2005Date of Patent: July 8, 2008Assignee: LG Chem, Ltd.Inventors: Sung-je Cha, Sung-tae Ahn, Dong-chul Kim, Yun-kyoung Cho
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Publication number: 20080156424Abstract: Process for improvement of the elasticity of a colored polymer system, which is composed of a matrix and of discrete polymer particles distributed in accordance with a defined spatial lattice structure in the matrix, and which is obtained by filming of an emulsion polymer with core/shell structure, where the emulsion polymer is obtainable via polymerization of monomers in at least one first stage (monomers of the core) and subsequent polymerization of monomers in at least one further, second stage (monomers of the shell), which comprises using monomers whose glass transition temperature is below 0° C. as at least 5% by weight of the monomers of the core.Type: ApplicationFiled: May 16, 2006Publication date: July 3, 2008Inventors: Reinhold J. Leyrer, Stephan Altmann, Oihana Elizalde
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Patent number: 7354970Abstract: A novel polyvinyl chloride copolymer paste resin comprising a copolymer of a vinyl chloride monomer and a macromonomer of the present invention can be synthesized with high productivity, and can provides a plastisol having high gelation properties, storage stability, superior tensile properties in low-temperature working conditions and heat resistance.Type: GrantFiled: June 10, 2003Date of Patent: April 8, 2008Assignee: Kaneka CorporationInventors: Mitsuyoshi Kuwahata, Shinbe Matsuzaki, Toshihito Kawauchi, Nobuki Toba
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Patent number: 7338706Abstract: A resin composition for capstock, comprising 100 to 30 parts by weight of an impact resistance modifier having a multilayer structure, and 0 to 70 parts by weight of a methyl methacrylate (co)polymer containing 50 to 100% by weight of methyl methacrylate and 50 to 0% by weight of a monomer which is copolymerizable therewith, wherein the total amount of the impact resistance modifier and the methyl methacrylate (co)polymer is 100 parts by weight, wherein the outer layer of said impact resistance modifier and/or said methyl methacrylate copolymer is copolymerized with 0.5 to 40% by weight of a reactive monomer based on the total amount of the impact resistance modifier and the methyl methacrylate (co)polymer as a polymer component, and wherein the homopolymer of said reactive monomer has an SP value of 9.8 (cal/cm3)/1/2 or more.Type: GrantFiled: April 23, 2002Date of Patent: March 4, 2008Assignees: Kaneka Corporation, Kaneka Texas CorporationInventors: Riichi Nishimura, Takahiko Sugaya
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Patent number: 7307135Abstract: A high-reactivity liquid polyurethane composition which contains at least one uretdione group and cures at a low baking temperature can be used for producing plastics, particularly surface coatings and adhesives. The polyurethane composition contains A) at least one curing agent which contains at least one uretdione group and is obtained from i) an aliphatic polyisocyanate, a (cyclo)aliphatic polyisocyanate, a cycloaliphatic polyisocyanate or mixtures thereof, and ii) at least one hydroxyl-containing compound, the curing agent having a free NCO content of less than 5% by weight and a uretdione content of from 1 to 18% by weight; and B) at least one catalyst.Type: GrantFiled: October 6, 2004Date of Patent: December 11, 2007Assignee: Degussa AGInventor: Emmanouil Spyrou
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Patent number: 7294399Abstract: Disclosed is an improved weatherable thermoplastic composition. The composition is comprised of a copolymer of an alkyl acrylate or alkyl methacrylate and (methyl)methacrylate and a multi-stage, sequentially-polymerized impact modifier polymer. The copolymer is characterized by greater than 15 weight percent alkyl acrylate content. The multi-stage, sequentially-polymerized impact modifier is characterized by an elastomer stage, which is 55 percent by weight or greater of the impact modifier composition and is minimally crosslinked. The thermoplastic composition can be used in a wide range of film, sheet, or molded applications.Type: GrantFiled: March 24, 2003Date of Patent: November 13, 2007Assignee: Arkema FranceInventors: Robert A. Wanat, Charles C. Crabb, Dennis J. Labanoski
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Patent number: 7294654Abstract: A heterogenous hybrid thermally regenerable salt sorbent resin is formed from a hybrid precursor resin. The hybrid precursor resin is formed by intimately mixing a dry, solid crosslinked macroporous copolymer with a solution containing a polyunsaturated monomer, a monoethylenically unsaturated monomer containing a haloalkyl group and a polymerization initiator, followed by heating to cause polymerization. The hybrid precursor resin is then treated with a weak base, then subjected to hydrolysis conditions to form, respectively, weak base groups and weak acid groups to produce the hybrid thermally regenerable salt sorbent resin.Type: GrantFiled: March 29, 2005Date of Patent: November 13, 2007Assignee: Novation Environmental Technologies, Inc.Inventors: Roger E. Johnson, Gerald Colombo
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Patent number: 7217763Abstract: The present invention relates to acrylonitrile-butadiene-styrene copolymer transparent resin having superior chemical resistance and transparency and preparation thereof, and particularly to acrylonitrile-butadiene-styrene copolymer transparent resin having superior chemical resistance and transparency by graft-copolymerzing on a) conjugated diene rubber latex, b) methacrylate alkylester or acrylate alkylester compound, c) aromatic vinyl compound and d) vinyl cyanide compound, and preparation thereof. In addition, according to the present invention, chemical resistance and ESCR can be further improved by further adding e) polyester-amide copolymer to the acrylonitrile-butadiene-styrene copolymer transparent resin.Type: GrantFiled: October 24, 2002Date of Patent: May 15, 2007Assignee: LG Chem, Ltd.Inventors: Jeong-Su Choi, Sung-Hee Kim, Hyoung-Min Bahn, Keun-Hoon Yoo
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Patent number: 7179852Abstract: The invention relates to a novel impact-resistance modifier, constructed from a core-shell 1 and a shell 2, whereby the core is plastically deformable. The invention is characterised by excellent mechanical properties obtained by a low content of impact-resistance modifier.Type: GrantFiled: July 26, 2001Date of Patent: February 20, 2007Assignee: Roehm GmbH & Co. KGInventors: Klaus Schultes, Thomas Suefke, Reiner Mueller, Thomas Arndt, Goerg Michler, Joachim Laatsch
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Patent number: 7157520Abstract: A powdery linear polymer having a narrow particle size distribution with little dusting and excellent in anti-blocking property is recovered from a latex of a linear polymer containing a large proportion (35–75 wt. %) of soft polymer (S) component through a two-step coagulation process including a first (moderate coagulation) step causing 70–98 wt. % of the coagulation. The linear polymer in the latex has a multilayer structure comprising a linear polymer (S) having a glass transition temperature below 40° C. and a linear polymer (H) having a higher glass transition temperature disposed in totally at least two layers and containing 35–75 wt. %, as a whole, of the linear polymer (S) with the proviso that the linear polymer (S) cannot be contained in excess of 30 wt. % in an outermost layer of the multilayer structure.Type: GrantFiled: August 28, 2002Date of Patent: January 2, 2007Assignee: Rohm and Haas CompanyInventors: Atsuhiro Higuchi, Yasuhiro Suzuki
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Patent number: 7071265Abstract: A method of producing a non-crosslinked polymer particle having in a side chain thereof a succinimidoxycarbonyl group represented by the following structural formula (1): the method comprising the step of using an initiator to polymerize a polymerizable monomer (A) containing a succinimidoxycarbonyl group represented by the above structural formula (1) and a polymerizable monomer (B) containing one polymerizable moiety in the monomer in a non-aqueous solvent in the presence of a macromolecular dispersion stabilizer. In this process the non-aqueous solvent is a solvent in which the polymerizable monomer (A) and the polymerizable monomer (B) are soluble and the non-crosslinked polymer particle is insoluble.Type: GrantFiled: March 18, 2003Date of Patent: July 4, 2006Assignee: Fuji Xerox Co., Ltd.Inventors: Chisato Urano, Yoshihiro Inaba, Masato Mikami, Takako Kobayashi
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Patent number: 7064163Abstract: A method for producing polyolefin-based adhesive resins having improved physical and optical properties and the improved adhesive resins thereby produced, eliminates at least one reheating and melting of polyolefin polymer, comprises polymerizing a monomer composition of at least one olefin, mixing the polymerization product without pelletizing the polyolefin polymer with at least one graft polymer or copolymer in a heated mixing device at a temperature above the melting point of the components, and recovering the resulting polyolefin-based adhesive resin.Type: GrantFiled: July 2, 2003Date of Patent: June 20, 2006Assignee: MSI Technology LLCInventor: Mitsuzo Shida
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Patent number: 7001949Abstract: An aqueous coating composition comprising a comb copolymer is disclosed. A method of forming a coating from the aqueous coating composition, and a coating formed by that method are also disclosed, as is a method of forming the comb copolymer. The comb copolymer is characterized in that aqueous dispersions of the comb copolymer have a Hard/Soft Balance Advantage value of at least 25%. The aqueous coating composition is capable of producing coatings having an excellent balance of hard and soft properties.Type: GrantFiled: September 13, 2001Date of Patent: February 21, 2006Assignee: Rohm and Haas CompanyInventors: David M. Fasano, Karl A. Bromm, Willie Lau, Jack C. Thibeault, David A. Larson, Paul R. Van Rheenen
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Patent number: 6982299Abstract: A low gloss thermoplastic molding composition comprising a grafted acrylate rubber (ASA) and a process for its preparation are disclosed. The composition contains an effective amount of a gloss-reducing agent that is the reaction product of (i) compound having two or more maleic anhydride groups per molecule and (ii) compound having two or more terminal primary amine groups per molecule. The incorporation of the gloss reducing agent in the inventive composition may be by blending the reaction product or, in the alternative, blending the reactants (i) and (ii) in the molten ASA under process conditions designed to bring about the in situ formation of the inventive gloss reducing agent.Type: GrantFiled: August 29, 2002Date of Patent: January 3, 2006Assignees: Lanxess Corporation, Bayer AktiengesellschaftInventors: Moh-Ching Oliver Chang, Allen R. Padwa, Chuan-Ju Chen, Daniel Dufour
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Patent number: 6861475Abstract: The present invention, a powder composition for making powder coatings comprising one or more than one curable polymer or resin and an agglomerate of a core-shell polymer, wherein the agglomerate of a core-shell polymer has an average particle size of from 5 to 190 microns, preferably from 10 to 127 microns. The powders in accordance with the present invention provide a cured powder coating that is flexible, smooth, and which may be applied in a thickness of only from 0.3 to 8 mils. In a preferred embodiment of making a powder in accordance with the present invention, the agglomerate is cryoground to form a reduced agglomerate prior to adding it into a powder as a post-blend or a powder-forming mixture as a preblend. The preferred core-shell polymer for use in accordance with the present invention comprises an acrylic impact modifier having a poly(methyl methacrylate) shell and a poly(butyl acrylate) core.Type: GrantFiled: December 18, 2002Date of Patent: March 1, 2005Assignee: Rohm and Haas CompanyInventors: Casmir Stanislaus Ilenda, Michael Louis Spera, Gordon Tullos, Andrew T. Daly
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Patent number: 6849689Abstract: Rubber-reinforced thermoplastic resins containing a copolymer resin (A1) obtained by polymerizing a vinyl monomer (b1) in the presence of an acrylic rubber-like polymer (a), or a mixture of copolymer resin (A1) and a (co)polymer (A2) of a vinyl monomer (b2). Acrylic rubber-like polymer (a) contains 50 to 98% by weight of acrylic rubber-like polymer particles (a1) which have a particle size of less than 350 nm and 2 to 50% by weight of acrylic rubber-like polymer particles (a2) which have a particle size of not less than 350 nm. The amount of the acrylic rubber-like polymer (a) is 5 to 80% by weight based on the rubber-reinforced thermoplastic resin.Type: GrantFiled: March 26, 2002Date of Patent: February 1, 2005Assignee: Techno Polymer Co., Ltd.Inventors: Gou Yamada, Hiromu Akatsuka, Takashi Kurata
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Patent number: 6849687Abstract: A thermoplastic molding composition comprising a grafted acrylate rubber (ASA) and a gloss reducing agent and a process for making the same are disclosed. The gloss reducing agent is the reaction product of (i) an epoxidized grafted rubber having two or more epoxy groups in its graft phase and (ii) a compound having two or more terminal primary amine groups per molecule The gloss reducing agent may be either incorporated in ASA as the reaction product of (i) and (ii) or, in the altemative, formed upon the reaction of (i) with (ii) in the course of the thermal processing of the a blend containing ASA, (i) and (ii).Type: GrantFiled: August 1, 2002Date of Patent: February 1, 2005Assignee: Bayer Polymers LLCInventors: Moh-Ching Oliver Chang, Allen R. Padwa, Norma I. Santiago
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Patent number: 6844396Abstract: An acrylic resin composition with excellent impact resistance, weatherability, processability and low gloss is provided. The acrylic resin composition comprises, (A) 10 to 40 parts by weight of a high molecular weight acrylic (co)polymer which is a one-step or multi-step polymer containing 72 to 100% by weight of methyl methacrylate and 0 to 28% by weight of a copolymerizable monomer, the (co)polymer having a specific viscosity of at least 0.5 (solvent: toluene, concentration: 0.4%, temperature: 30° C.), wherein a polymer layer obtained in one of the steps contains at least 72% by weight of methyl methacrylate, has a specific viscosity of at least 0.5 and makes up at least 55% by weight of the total weight of the high molecular weight acrylic (co)polymer (A); (B) 0 to 80 parts by weight of an acrylic (co)polymer containing 50 to 100% by weight of methyl methacrylate and 0 to 50% by weight of a copolymerizable monomer, the acrylic (co)polymer having a specific viscosity of less than 0.Type: GrantFiled: August 28, 2002Date of Patent: January 18, 2005Assignees: Kaneka Corporation, Kaneka Texas CorporationInventors: Takahiko Sugaya, Riichi Nishimura, Kazuhisa Tajima
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Patent number: 6833409Abstract: An impact strength modifier comprises an acrylic rubber graft copolymer (I) obtained by graft-polymerizing a polyalkyl (meth)acrylate composite rubber (A) with a vinyl monomer (B), and a compound (II) which has a sulfonic acid group or a sulfuric acid group and also has two or more benzene ring skeletons, or a salt thereof. The polyalkyl (meth)acrylate composite rubber (A) contains two or more acrylic rubber components each having a different glass transition temperature, and the respective acrylic rubber components have 20% by weight or less of a monomer having two or more unsaturated bonds in a molecule. The compound (II) preferably has two or more benzene ring skeletons, and a particle size distribution of the polyalkyl (meth)acrylate composite rubber (A) is preferably a polydisperse distribution in which two or more peaks exist within a specific range.Type: GrantFiled: October 21, 2002Date of Patent: December 21, 2004Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Keiji Nakamura, Masakazu Ito
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Publication number: 20040249073Abstract: The invention provides a rubber-modified copolymer resin which is excellent in transparency, impact resistance and rigidity and which has little dependency of the transparency on molding conditions, and a rubber-modified copolymer resin composition which has the above characteristics and which has high practical strength.Type: ApplicationFiled: April 12, 2004Publication date: December 9, 2004Inventors: Jun Takahashi, Jun Nakamoto, Hideki Watanabe
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Patent number: 6812282Abstract: A low gloss thermoplastic composition suitable for making article having low gloss and a process for its preparation are disclosed. The composition contains (I) a resinous component that includes (a) a (co)polyalkyl (meth)acrylate rubber characterized that it contains no grafted phase, (b) a poly(vinyl aromatic-co-nitrile)-grafted (co)polyalkyl (meth)acrylate rubber, and (c) a poly(vinylaromatic-co-nitrile), and (II) a gloss-reducing agent that is the reaction product of (d) a compound having two or more maleic anhydride groups per molecule, and (e) a compound having two or more terminal primary amine groups per molecule, with the proviso that the total of the maleic anhydride groups per molecule and the terminal primary amine functional groups per molecule is greater than 4.Type: GrantFiled: September 10, 2002Date of Patent: November 2, 2004Assignee: Bayer Polymers LLCInventors: Moh-Ching Oliver Chang, Yin-Shen Chang
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Patent number: 6806320Abstract: Described are melt-processable block copolymers and compositions, embodiments of which may be useful in applications such as pressure sensitive adhesive (PSA) or heat-activatable adhesive, comprising polymeric end block and polymeric B block, wherein end block comprises copolymer and the B block comprises homopolymer or copolymer.Type: GrantFiled: November 15, 2002Date of Patent: October 19, 2004Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, JingJing Ma, Ashish K. Khandpur, Francois C. D'Haese, Jianhui Xia, Lang N. Nguyen
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Patent number: 6784246Abstract: Disclosed are compositions and processes for preparing polymeric materials having polymerizable units derived from at least one C8 to C30 alkyl (meth)acrylate monomer, and at least one chain branching unit. The presence of the chain branching unit suprisingly results in the polymeric composition having non-gelled polymer chains. The polymeric compositions are useful as additives for improving the melt strength of thermoplastic resins.Type: GrantFiled: February 25, 2002Date of Patent: August 31, 2004Assignee: Rohm and Haas CompanyInventors: Carlos Alfonso Cruz, Eugene Patrick Dougherty
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Patent number: 6773821Abstract: An acrylic resin composition suitable for the preparation of capstock for siding panels and having excellent impact resistance, weatherability and processability and a low gloss, which comprises 30 to 100% by weight of an impact modifier having a multilayer structure and 0 to 70% by weight of a methyl methacrylate homopolymer or copolymer and whose MFI (melt flow index measured according to ASTM D-1238 at 230° C. and a load of 3.8 kg) is not more than 0.35 g/10 minutes.Type: GrantFiled: December 28, 2001Date of Patent: August 10, 2004Assignees: Kaneka Corporation, Kaneka Texas CorporationInventors: Kazuhisa Tajima, Riichi Nishimura, Takahiko Sugaya
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Patent number: 6720386Abstract: Rubber modified weatherable styrenic blends with improved transparency and colorability are disclosed. A matrix phase of poly(alkyl alkylacrylate) and vinyl carboxylic acid ester-vinyl aromatic-vinyl cyanide terpolymer is combined with a rubbery graft phase of a poly(alkyl acrylate) rubber substrate grafted with a vinyl aromatic-vinyl cyanide superstrate copolymer to provide acrylate-styrene-acrylonitrile type (ASA) compositions.Type: GrantFiled: February 28, 2002Date of Patent: April 13, 2004Assignee: General Electric CompanyInventors: Satish Kumar Gaggar, Kwan Hongladarom
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Patent number: 6716917Abstract: A rubber-reinforced styrene transparent resin composition contains a styrene copolymer reinforced with a rubber polymer, wherein the monomer composition of an acetone soluble resin component contained in the resin composition contains 5 to 70% by weight of aromatic vinyl monomer (a1), 30 to 95% by weight of unsaturated carboxylic acid alkyl ester monomer (a2), 0 to 50% by weight of vinyl cyanide monomer (a3), and 0 to 50% by weight of another monomer copolymerizable with these monomers, and the acid value of the acetone soluble resin component is 0.01 to 1 mgKOH/g.Type: GrantFiled: July 26, 2001Date of Patent: April 6, 2004Assignee: Toray Industries, Inc.Inventors: Ryota Kido, Hiroshi Shibata, Hajime Takamura, Akihiro Ohmura, Yoshiyuki Yamamoto
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Publication number: 20040024122Abstract: A thermoplastic molding composition comprising a grafted acrylate rubber (ASA) and a gloss reducing agent and a process for making the same are disclosed. The gloss reducing agent is the reaction product of (i) an epoxidized grafted rubber having two or more epoxy groups in its graft phase and (ii) a compound having two or more terminal primary amine groups per molecule The gloss reducing agent may be either incorporated in ASA as the reaction product of (i) and (ii) or, in the alternative, formed upon the reaction of (i) with (ii) in the course of the thermal processing of the a blend containing ASA, (i) and (ii).Type: ApplicationFiled: August 1, 2002Publication date: February 5, 2004Inventors: Moh-Ching Oliver Chang, Allen R. Padwa, Norma I. Santiago
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Publication number: 20040006179Abstract: A cured elastomeric rubber composition with a reduced coefficient of friction and a relatively high surface energy is disclosed. The composition comprises an elastomeric rubber with polar functional groups grafted to the polymer backbone. The polar functional groups can include amide, amine urethane, ester or silane functional groups. The elastomeric rubber may be any relatively non-polar elastomeric rubber such as EPDM or polyisoprene. Also incorporated into the rubber composition are various rubber additives including for example, carbon black, processing oils, curatives, and clay filler. The incorporation of various functional groups in the rubber compositions effectively reduces the coefficient of friction of the resulting cured rubber component.Type: ApplicationFiled: July 1, 2002Publication date: January 8, 2004Applicant: Cooper Technology Services LLCInventor: Hans-Joachim Graf
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Patent number: 6663953Abstract: A Fresnel lens base sheet is provided which is suitable for the formation of a lens layer of an ultraviolet-cured resin and has excellent impact resistance and environmental resistance. The Fresnel lens base sheet comprises a specific rubber-modified styrene resin comprising a rubber-like elastic material as dispersed particles and a copolymer of a styrene monomer with an acrylic (methacrylic) ester monomer as a continuous phase.Type: GrantFiled: February 14, 2002Date of Patent: December 16, 2003Assignees: Asahi Kasei Kabushiki Kaisha, Dai Nippon Printing Co., Ltd.Inventors: Shunji Kamiya, Makoto Honda, Keiji Hanamoto
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Patent number: 6646046Abstract: A pressure-sensitive adhesive composition comprising a water-soluble polymer A, a water-insoluble component B, a water-incompatible solvent C that dissolves the water-insoluble component B and is incompatible with water, a water-soluble plasticizer D, and water, wherein the pressure-sensitive adhesive composition in a dry state has water solubility according to Technical Association of The Pulp and Paper Industry Useful Method 213 (TAPPI UM 213). Also disclosed are a method for producing a pressure-sensitive adhesive composition according to the present invention, comprising the steps of: preliminarily preparing a true nonaqueous solution of a water-insoluble component B in a water-incompatible solvent C, and mixing the true nonaqueous solution with an aqueous solution of at least one member selected from the group consisting of a water-soluble polymer A and a water-soluble plasticizer D, and a pressure-sensitive adhesive and a pressure-sensitive adhesive tape that use the composition.Type: GrantFiled: December 6, 2001Date of Patent: November 11, 2003Assignees: Permachel, Nitto Denko CorporationInventors: Svetlana I. Contrada, Koichi Nakamura, David R. Hamblin, Jr.
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Patent number: 6632880Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about (a) 10-70% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having (i) a core of gelled polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stabilizer polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC (gel permeation chromatography) using polystyrene as the standard; wherein the core, the stabilizer polymeric component, or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having isocyanate groups attached thereto that are capable of reacting with component (b); (b) 30-90% by weight, based on the weight of the bType: GrantFiled: July 9, 2001Date of Patent: October 14, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi
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Patent number: 6593404Abstract: The present invention relates to flame-retardant thermoplastic resin compositions. More particularly, the present invention relates to the thermoplastic resin compositions which comprise a polycarbonate, a styrene containing graft copolymer, a styrene containing copolymer, a mixture of alkyl substituted, preferably t-butyl substituted, monophosphate esters, a phosphate ester compound, and a fluorinated polyolefin, whose stress cracking resistance and flame retardancy are improved.Type: GrantFiled: September 29, 2000Date of Patent: July 15, 2003Assignee: Cheil Industries, Inc.Inventors: Jun Hyuk Shin, Sam Joo Yang, Young Kil Chang
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Patent number: 6555245Abstract: An acrylic resin composition suitable for the preparation of capstock for siding panels and having excellent impact resistance, weatherability and processability and a low gloss, which comprises 30 to 100% by weight of an impact modifier having a multilayer structure and 0 to 70% by weight of a methyl methacrylate homopolymer or copolymer and whose MFI (melt flow index measured according to ASTM D-1238 at 230° C. and a load of 3.8 kg) is no more than 0.2 g/10 minutes.Type: GrantFiled: December 20, 2000Date of Patent: April 29, 2003Assignees: Kaneka Corporation, Kaneka Texas CorporationInventors: Kazuhisa Tajima, Riichi Nishimura, Takahiko Sugaya
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Patent number: 6531543Abstract: Thermoplastic molding compositions, comprising (A) from 20 to 99% by weight of at least one graft copolymer, (B) from 1 to 80% by weight of a copolymer obtained from at least one alpha-olefin and from at least one polar comonomer, with the proviso that the monomers used are not vinyl acetate or any vinylaromatic monomer, and (C) from 0 to 80% by weight of a thermoplastic polymer, obtained by polymerizing a monomer mixture, of (c1) from 50 to 100% by weight of at least one vinylaromatic monomer and/or of a C1-C8-alkyl (meth)acrylate, and (c2) 0 to 50% by weight of at least one monofunctional comonomer, and (D) from 0.5 to 30% by weight of a (co)polymer made from (d1) from 50 to 100% by weight of isobutene and (d2) from 0 to 50% by weight of one or more other monomers, process of preparing same and their uses.Type: GrantFiled: August 9, 2001Date of Patent: March 11, 2003Assignee: BASF AktiengesellschaftInventors: Norbert Güntherberg, Martin Weber, Gerhard Lindenschmidt, Hans Peter Rath
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Patent number: 6525135Abstract: This invention provide a methacrylic resin modifier, which gives impact resistance and high transparency under wide ranges of molding conditions. More particularly, it provides a methacrylic resin modifier and a polymer processability modifier, which comprises a blend of an impact resistance modifier, wherein weight ratio of the impact resistance modifier and polymer processability modifier is from 95/5 to 80/20 and the polymer processability modifier has a specific viscosity of from 2.5 to 5.0 when measured in its 0.4% by weight toluene solution at 30° C.Type: GrantFiled: September 12, 2000Date of Patent: February 25, 2003Assignee: Kaneka CorporationInventors: Norio Nagata, Katsumi Yamaguchi, Akira Takaki
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Patent number: 6518361Abstract: Thermoplastic molding compositions are made from A) from 20 to 98% by weight of a particulate graft polymer and a non-elastomeric graft shell B) from 0.5 to 78.5% by weight of a thermoplastic styrene polymer or copolymer C) from 1 to 79% by weight of a second styrene copolymer and D) from 0.5 to 30% by weight of an isobutene polymer.Type: GrantFiled: October 3, 2000Date of Patent: February 11, 2003Assignee: BASF AktiengesellschaftInventors: Norbert Güntherberg, Martin Weber, Gerhard Lindenschmidt, Hans Peter Rath
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Patent number: 6515079Abstract: In a process for preparing thermoplastic molding compositions by a) polymerizing, in aqueous emulsion, dienes, C1-C12-alkyl acrylates or mixtures of these, where from 0 to 30% by weight of these monomers may have been replaced by other copolymerizable monomers, and where from 0 to 10 by weight of these monomers may have been replaced by crosslinking monomers, to give a rubber latex with a glass transition temperature below −10° C.Type: GrantFiled: December 12, 2000Date of Patent: February 4, 2003Assignee: BASF AktiengesellschaftInventors: Graham Edmund McKee, Falko Ramsteiner, Peter Barghoorn, Michael Breulmann, Norbert Niessner
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Patent number: 6509097Abstract: An acrylic film with excellent flexibility is easy to process and has 70 to 95 parts by weight of an acrylic rubber-containing polymer (A) and to 30 parts by weight of an acrylic-based thermoplastic polymer (B) and having a total amount of (A) and (B) of 100 parts by weight; a gel content of 50 to 70% by weight; and elongation at break in one direction of 180% or more. The acrylic rubber-containing polymer (A) has an elastic copolymer having a monomer unit whose polymer has a glass transition temperature of more than 65° C. The acrylic-based thermoplastic polymer (B) has a glass transition temperature of 65° C. or less and a weight average molecular weight of 100,000 to 300,000.Type: GrantFiled: March 16, 2000Date of Patent: January 21, 2003Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroki Hatakeyama, Kazuaki Hayashida, Yukio Kitaike
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Patent number: 6488596Abstract: A golf ball having a coating layer which is excellent in resistance to impact, scuffing and abrasion without increasing the thickness of the layer. The coating layer has a hardness of 21 to 60 N/mm2, which is calculated by the following expression (1): Hardness=(test load)/{26.43×(penetration depth (mm))2} (1) wherein the test load is 3 mN.Type: GrantFiled: November 9, 1999Date of Patent: December 3, 2002Assignee: Sumitomo Rubber Industries, LimitedInventors: Kiyoto Maruoka, Naoki Kato
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Publication number: 20020177658Abstract: An acrylic resin composition suitable for the preparation of capstock for siding panels and having excellent impact resistance, weatherability and processability and a low gloss, which comprises 30 to 100% by weight of an impact modifier having a multilayer structure and 0 to 70% by weight of a methyl methacrylate homopolymer or copolymer and whose MFI (melt flow index measured according to ASTM D-1238 at 230° C. and a load of 3.8 kg) is no more than 0.2 g/10 minutes.Type: ApplicationFiled: December 20, 2000Publication date: November 28, 2002Applicant: KANEKA CORPORATION,Inventors: Kazuhisa Tajima, Riichi Nishimura, Takahiko Sugaya
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Patent number: 6486234Abstract: The present invention relates to an impact strength modifier capable of imparting both excellent weathering resistance and impact resistance, and to a resin composition comprising the impact strength modifier and a thermoplastic resin, particularly a rigid vinyl chloride resin. Since this impact strength modifier comprises, as a principal component, an acrylic rubber graft copolymer which is obtained by graft polymerization of a polyalkyl (meth)acrylate (A) rubber containing a plurality of acrylic rubber components composed of a specific monomer as a principal component, and a vinyl monomer (B), it is made possible to improve the impact resistance, particularly impact resistance at low temperatures, of the resin and to satisfactorily maintain the weathering resistance by adding a small amount of the impact strength modifier to the resin. This impact strength modifier is particularly suited for incorporation into a rigid vinyl chloride resin.Type: GrantFiled: January 12, 2001Date of Patent: November 26, 2002Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Keiji Nakamura, Masakazu Ito, Akira Nakata
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Patent number: 6455634Abstract: The present invention relates to a blend of at least one (meth)acrylate polymer and at least one amorphous propylene-derived polymer, and an optional tackifier that provide pressure sensitive adhesive compositions in which improved peel adhesion to at least one of low and relatively high surface energy substrates can be achieved.Type: GrantFiled: December 29, 2000Date of Patent: September 24, 2002Assignee: 3M Innovative Properties CompanyInventors: Ashish K. Khandpur, Eugene G. Joseph, Greggory S. Bennett