Contacting Two Or More Solid Polymers With A Phenolic Reactant; Or Contacting A Solid Polymer With A Phenolic Reactant And Subsequently Contacting The Treated Polymer With An Additional Solid Polymer Patents (Class 525/133)
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Patent number: 7087678Abstract: A resin composition comprising 3 to 80 parts by weight of a resol type phenolic resin or 3 to 150 parts by weight of a polyhydric phenol, based on 100 parts by weight of a copolymer (A) of an epoxy group-containing monomer and an ?-olefin, a powder of the resin composition, a laminate having a layer containing the resin composition, and producing method of the laminate.Type: GrantFiled: September 16, 2004Date of Patent: August 8, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Kohsuke Ohtani, Hikaru Shimizu
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Patent number: 7056973Abstract: A high flow polyphenylene ether resin composition comprises a blend of at least two polyphenylene ether resins, a first resin having an intrinsic viscosity of at least 0.3 dl/g, and a second resin having an intrinsic viscosity of less than 0.17 dl/g and preferably having a particle size of at least about 100 ?m. Fiber reinforced and flame retarded compositions exhibit high HDT values.Type: GrantFiled: April 9, 2003Date of Patent: June 6, 2006Assignee: General ElectricInventor: Nirajkumar Patel
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Patent number: 7041732Abstract: A compatible blend of polycarbonate resin with a vinyl (co)polymer blending partner is disclosed. The preparation of inventive blend comprise reactive blending of polycarbonate, a vinyl (co)polymer and a novel compatibilizer in the presence of a transesterification catalyst and under conditions of time and temperature designed to promote transesterification. The compatibilizer is the polymerized reaction product of at least one vinyl monomer that contains no hydroxy groups and a hydroxyl containing monomer conforming to (I) where R denotes H or C1–C4 alkyl, R1 denotes H, Cl, Br, C1–C4 alkyl, cyclohexyl, or C1–C4 alkoxy, a is 0 or 1, b is 0 or 1, c is 0 or 1, n is an integer of 0 to 4 and X is an OH group. The compatible blends of the invention are characterized by their improved properties.Type: GrantFiled: December 8, 2003Date of Patent: May 9, 2006Assignee: Bayer MaterialScience LLCInventors: Daniel H. Bolton, Pierre Moulinie, David M. Derikart, Nicanor Kohncke
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Patent number: 7022777Abstract: A moldable thermosetting composition comprises a poly(arylene ether), a thermosetting resin, a toughening agent, and an amine cure agent. The compositions may be conveniently prepared without solvents, and the poly(arylene ether) may be provided in the form of an easily dissolved solid concentrate with the thermosetting resin.Type: GrantFiled: June 28, 2001Date of Patent: April 4, 2006Assignee: General ElectricInventors: Michael John Davis, James Estel Tracy
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Patent number: 6995212Abstract: A flame-retardant thermoplastic molding composition is disclosed. The composition contains aromatic polycarbonate resin and sufficient amounts of poly(tetrafluoroethylene) and sulfo-modified polyester, that are effective to impart to the composition flame resistance that in accordance with UL-94 standard is rated V-0 at 1/16? thick specimens.Type: GrantFiled: August 8, 2003Date of Patent: February 7, 2006Assignee: Bayer MaterialScience LLCInventors: James Y. J. Chung, Winfried G. Paul
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Patent number: 6989190Abstract: Disclosed is a transparent/translucent molding composition and process for making prepared from an impact modifier and a resin blend of polycarbonate and a cycloaliphatic polyester having a matching index of refraction.Type: GrantFiled: February 24, 2003Date of Patent: January 24, 2006Assignee: General Electric CompanyInventors: Satish Kumar Gaggar, Johannes Jacobus de Moor, Paul Honigfort, Gabrie Hoogland, Mark van Heeringen, Eelco M. S. van Hamersveld
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Patent number: 6949279Abstract: The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as ?-methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.Type: GrantFiled: May 29, 2003Date of Patent: September 27, 2005Assignee: General Electric CompanyInventors: Ramesh Hariharan, Gary Charles Davis, Marc Brian Wisnudel
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Patent number: 6875812Abstract: An object of the present invention is to provide an agent serving both as a compatibilizer and an impact strength-imparting agent, which is freed from layer separation phenomenon and capable of improving compatibility to a polyphenylene ether and/or a polyolefin without detriment to weld tensile strength and low temperature impact strength. Another object is to provide a resin composition, which is obtained by blending the agent serving both as a compatibilizer and an impact strength-imparting agent with other thermoplastic resin, and which is superior in its impact resistance, particularly impact strength at low temperature, heat resistance and processability.Type: GrantFiled: July 29, 2003Date of Patent: April 5, 2005Assignee: Asahi Kasei Kabushiki KaishaInventors: Yoshikuni Akiyama, Minoru Sakata, Goro Yamamoto
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Patent number: 6866798Abstract: The present invention relates to a polyamide composition comprising (A) polyamide, (B) polyphenylene ether, and (C) an ethylene-?-olefin copolymer prepared using a single site catalyst. The resin composition of the present invention can provide a polyamide composition having excellent impact resistance and excellent surface smoothness, and displaying only small dimensional changes after water absorption.Type: GrantFiled: January 24, 2003Date of Patent: March 15, 2005Assignee: Asahi Kasei Kabushiki KaishaInventors: Takaaki Miyoshi, Junichi Nakahashi
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Patent number: 6841215Abstract: A heat resistant pipe is formed from a composition comprising polyphenylene ether resin and polystyrene resin. Pipes made from this composition possess superior thermal and pressure resistance. Their impact resistance and thermal expansion characteristics permit them to be utilized advantageously in all environments and during all seasons with little risk of failure.Type: GrantFiled: August 23, 2002Date of Patent: January 11, 2005Assignee: General ElectricInventors: Takuro Kitamura, Shigeru Kurioka, Masaru Sato
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Patent number: 6838500Abstract: An adhesive composition and tapes utilizing the adhesive compositions are disclosed. A tape utilizing the adhesive composition of the present invention particularly suitable for use in closure systems associated with air ducts and air connectors is disclosed. A composition particularly suitable for use as an antioxidant in adhesive compositions is disclosed.Type: GrantFiled: February 7, 2002Date of Patent: January 4, 2005Inventors: Stuart D. Carlisle, Jerry M. Serra
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Patent number: 6825275Abstract: A rubber composition for adhering to steel cords, having excellent heat-resistant adhesion and moist heat-resistant adhesion, as well as initial adhesion, and performance at a level comparable to or higher than that of the related art in resistance to rubber fracture, is made from components (A) and (B), which are blended to 100 weight parts of rubber components containing natural rubber and/or diene synthetic rubber, wherein component (A) is a mixture of a compound containing nickel and a compound containing molybdenum; or a compound containing nickel and molybdenum simultaneously, in a metal-converted amount of 0.01 to 10 weight parts; and component (B) is a mixture of (b1), which is 0.2 to 20 weight parts of hexamethylenetetramine or a melamine derivative, and (b2), which is 0.1 to 10 weight parts of at least one selected from the group consisting of phenol resins, resorcin, resorcin derivatives, and cresol resins.Type: GrantFiled: May 24, 2001Date of Patent: November 30, 2004Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Seiji Hatano, Hirofumi Hayashi
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Patent number: 6815488Abstract: A process for producing a thermoplastic resin composition is disclosed and comprises melt-kneading a resin composition containing from 40 to 90 parts by weight of (A) a polyamide resin, from 5 to 50 parts by weight of (B) a polyphenylene ether resin, from 5 to 30 parts by weight of (C) an aromatic vinyl compound-aliphatic hydrocarbon copolymer and from 0 to 30 parts by weight of (D) a polyolefin resin, per 100 parts by weight in total of the components (A), (B), (C) and (D), and further containing from 0.01 to 1.5 parts by weight of (E) an &agr;,&bgr;-unsaturated carboxylic acid or a derivative thereof per 100 parts by weight of the component (B), wherein the components (B), (C) and (E) are added from the upstream end of a melt-kneading machine and the component (A) is added part-way through the melt-kneading machine.Type: GrantFiled: March 15, 2002Date of Patent: November 9, 2004Assignee: Ube Industries, Ltd.Inventor: Ken Nakamura
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Composition and method for improving the surface adhesion of resin compositions to polyurethane foam
Publication number: 20040214952Abstract: A resin composition for improving adhesion with polyurethane foam is disclosed which comprises:Type: ApplicationFiled: April 22, 2003Publication date: October 28, 2004Applicant: General Electric CompanyInventors: Ganesh Kannan, Vijay Ramchandra Mhetar, Mark Denniston, Mark Lewis -
Patent number: 6808810Abstract: A resin composition comprising 3 to 80 parts by weight of a resol type phenolic resin or 3 to 150 parts by weight of a polyhydric phenol, based on 100 parts by weight of a copolymer (Å) of an epoxy group-containing monomer and an &agr;-olefin, a powder of the resin composition, a laminate having a layer containing the resin composition, and producing method of the laminate.Type: GrantFiled: December 19, 2001Date of Patent: October 26, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Kohsuke Ohtani, Hikaru Shimizu
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Patent number: 6809159Abstract: High flow polyphenylene ether formulations are obtained with the addition of dendritic polymers. High flow is also obtained with the addition of dendritic polymers to flame retardant polyphenylene ether formulations.Type: GrantFiled: April 16, 2002Date of Patent: October 26, 2004Assignee: General Electric CompanyInventor: Adeyinka Adedeji
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Publication number: 20040162390Abstract: The present invention is directed to blends of a copolymer and a polyolefin rubber having good mechanical properties. According to the present invention, the polymer blend can be obtained by a one-stage melt compounding process.Type: ApplicationFiled: December 3, 2003Publication date: August 19, 2004Inventors: Werner Obrecht, Norbert Steinhauser, Mario Vierle, Oskar Nuyken
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Patent number: 6765062Abstract: Polymer blends, in particular polyphenylene ether-polyamide blends, are effectively compatibilized by incorporating under blending conditions certain oligomers, cooligomers, polymers and copolymers of narrow molecular weight distribution that are prepared under free radical polymerization conditions with glycidyl-functionalized nitroxyl initiators. The oligomers, cooligomers, polymers and copolymers contain at least one oxyamine group and at least one glycidyl-containing initiator group. The polymer blends have excellent mechanical properties.Type: GrantFiled: July 10, 2002Date of Patent: July 20, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Hui Chin, James Botkin, Francesco Fuso, Wiebke Wunderlich
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Patent number: 6737478Abstract: The invention relates to rubber compounds comprising at least one double bond-containing rubber, additions of rubber gels, phenolic resin adducts or phenol/formaldehyde condensation products, such as resols or novolaks, and optionally, further fillers and rubber auxiliary substances, and the vulcanizates and molded rubber articles produced from them. The rubber compounds according to the present invention are characterized in the uncrosslinked state by good processability (compound viscosity ML 1+4/100° C.<60 ME) and in the vulcanized state by Shore-A hardness values/23° C.>60, high impact resilience values E/23° C.>60% and a low specific density. The vulcanizates are suitable for the production of industrial rubber articles and for various tire components, such as roll coverings, conveyor belt coverings, belts, spinning cops, seals, golf ball cores, shoe soles and bead compounds, tire carcasses, subtread compounds and tire sidewalls.Type: GrantFiled: October 16, 2001Date of Patent: May 18, 2004Assignee: Bayer AktiengesellschaftInventors: Werner Obrecht, Anthony Sumner
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Patent number: 6696153Abstract: An adhesive composition that can be used to bond textile fibers adhesively to a cross-linkable rubber composition, textile fibers sized by means of the said adhesive composition, a composite of the textile fibers and a cross-linked rubber composition that is permeable to light, and a tire body whose sidewalls are made from the composite are disclosed. The adhesive composition is made from an aqueous thermosetting phenolic adhesive containing at least one diene elastomer and at least one organic pigment. This adhesive composition is the reaction product the aqueous thermosetting phenolic adhesive and an aqueous pigmentary dispersion containing the organic pigment.Type: GrantFiled: October 3, 2001Date of Patent: February 24, 2004Assignee: Michelin Recherche et Technique S.A.Inventors: Aurélie Joseph, Michelle Chassagny, Marius Roux
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Patent number: 6689474Abstract: The present invention provides compositions comprising (a) a thermally stable polymer comprising resorcinol arylate polyester chain members substantially free of anhydride linkages linking at least two mers of the polymer chain, and (b) at least one auxiliary stabilizer additive selected from the group consisting of 2,2′-(1,4-phenylene)bis(4H-3,1-benzoxazin-4-one) and 1,3-bis[(2-cyano-3,3-diphenylacryloyl)oxy]-2,2-bis[[(2-cyano-3,3-diphenylacryloyl)oxy]methyl]propane. Both multilayer and unitary articles comprising the composition are also provided.Type: GrantFiled: December 5, 2002Date of Patent: February 10, 2004Assignee: General Electric CompanyInventors: James Edward Pickett, Joseph Anthony Suriano, Steven Thomas Rice, Xiangyang Li, Paul Dean Sybert
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Patent number: 6686418Abstract: A process for reducing the heat evolution on dynamic stressing of vulcanised rubber products, using for this purpose, in vulcanizable rubber mixtures, mixtures made from non-selfcuring novolaks A and from unetherified or partially etherified triazine resins B, as a combination of reinforcing resin and curing agent.Type: GrantFiled: May 22, 2001Date of Patent: February 3, 2004Assignee: Solutia Germany GmbH & Co. KGInventors: Siegfried Wallenwein, Frank Scholl, Helmut Eckes
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Patent number: 6670420Abstract: A compatible blend of polycarbonate resin with a vinyl (co)polymer blending partner is disclosed. The preparation of inventive blend comprise reactive blending of polycarbonate, a vinyl (co)polymer and a novel compatibilizer in the presence of a transesterification catalyst and under conditions of time and temperature designed to promote transesterification. The compatibilizer is the polymerized reaction product of at least one vinyl monomer that contains no hydroxy groups and a hydroxyl containing monomer conforming to (I) where R denotes H or C1-C4 alkyl, R1 denotes H, Cl, Br, C1-C4 alkyl, cyclohexyl, or C1-C4 alkoxy, a is 0 or 1, b is 0 or 1, c is 0 or 1, n is an integer of 0 to 4 and X is an OH group. The compatible blends of the invention are characterized by their improved properties.Type: GrantFiled: January 18, 2002Date of Patent: December 30, 2003Assignee: Bayer CorporationInventors: Daniel H. Bolton, Pierre Moulinie, David M. Derikart, Nicanor Kohncke
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Patent number: 6662840Abstract: The present invention relates to a rubber stock for bead wire compounds comprising (A) based on 100 parts by weight of rubber (1) from about 5 to about 40 weight percent of a carboxylated acrylonitrile-diene rubber having an acrylonitrile content ranging from about 15 to 45 percent by weight; and (2) from about 60 to about 95 weight percent of a non-carboxylated rubber selected from the group consisting of natural rubber, polyisoprene, polybutadiene, styrene-butadiene rubber, styrene-isoprene-butadiene rubber, styrene-isoprene rubber, isoprene-butadiene rubber and mixtures thereof; (B) from about 0.1 to about 10 phr of a methylene acceptor; and (C) from about 0.1 to about 10 phr of a methylene donor.Type: GrantFiled: February 8, 2002Date of Patent: December 16, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Georges Marcel Victor Thielen, Filomeno Gennaro Corvasce
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Patent number: 6664366Abstract: Thermally stable polymers comprising chain members derived from at least one 1,3-dihydroxybenzene moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of anhydride linkages linking at least two mers of the polymer chain, are prepared using an interfacial method comprising the steps of: (a) combining at least one 1,3-dihydroxybenzene moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; (b) adding to the mixture from (a) a controlled stoichiometric ratio of at least one acid chloride and at least one base while maintaining the pH between about 4 and about 8.5, and (c) adjusting the pH of the reaction mixture to a value in the range of about 7 and about 9 following complete addition of acid chloride, and stirring the reaction mixture for a time sufficient to destroy any anhydride linkages in the polymer chain.Type: GrantFiled: March 25, 2002Date of Patent: December 16, 2003Assignee: General Electric CompanyInventors: James Manio Silva, David Michel Dardaris, Gregory Allen O'Neil, Joseph Anthony Suriano
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Patent number: 6660789Abstract: A polyester composition comprising (A) 30 to 95 parts by weight of a polybutylene terephthalate resin containing a polybutylene terephthalate-isophthalate copolymer in which the content of an isophthalic acid ingredient to the entire dicarboxylic acid ingredient is 5 to 20 mol %, (B) 1 to 30 parts by weight of a polycarbonate resin, (C) 3 to 20 parts by weight of an elastomer and (D) 15 to 30 parts by weight of a fibrous reinforcing material, and (E) 0.1 to 3 parts by weight of a silicone compound, wherein the total amount for (A)-(D) is 100 parts by weight, the composition being used for insert molding.Type: GrantFiled: March 21, 2002Date of Patent: December 9, 2003Assignees: Toray Industries, Inc., Denso CorporationInventors: Tomoyuki Uno, Takashi Sugata, Akira Hirai, Tetsuya Hirose, Hiroyuki Yamazaki, Kazuo Kato
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Patent number: 6630527Abstract: Disclosed herein is a UV stabilized composition, comprising a polyester resin and a polycarbonate resin; an impact modifier; and an additive composition comprising a hindered amine light stabilizer and another UV absorber. Such compositions find utility in the manufacture of automobile components, for example.Type: GrantFiled: October 19, 2001Date of Patent: October 7, 2003Assignee: General Electric CompanyInventors: Jean R. Pierre, Peter H. Th. Vollenberg
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Patent number: 6620885Abstract: A copolymer having segments of polyphenylene ether, styrene and/or acrylonitrile, a method for making the copolymer, and a blend of the copolymer with a styrenic resin are provided. The polyphenylene ether segments are derived from polyphenylene ether polymers having at least one end cap that a pair of unsaturated aliphatic carbon atoms, i.e. a carbon—carbon double bond. The copolymer is miscible with styrene/acrylonitrile copolymers.Type: GrantFiled: August 30, 2001Date of Patent: September 16, 2003Assignee: General Electric CompanyInventors: Hua Guo, Narsi Devanathan, Charles Lewis
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Patent number: 6610442Abstract: The present invention relates to a resin composition comprising 5 to 60 parts by weight of a polyphenylene ether resin and 40 to 95 parts by weight of a crystalline polypropylene resin, and further containing a hydrogenation product of an aromatic vinyl compound-conjugated diene copolymer in an amount of 1 to 30 parts by weight based on 100 parts by weight of said polyphenylene ether resin and crystalline polypropylene resin combined, said crystalline polypropylene resin forming a continuous phase while said polyphenylene ether resin forming a disperse phase, the ratio of the weighted average inter-particle-wall distance (Lw) to the added average inter-particle-wall distance (Ln) of said disperse phase, Lw/Ln, being 1.0 to 3.0.Type: GrantFiled: June 4, 2001Date of Patent: August 26, 2003Assignee: Mitsubishi Engineering-Plastics CorporationInventors: Yoshihiro Kurasawa, Naoto Obayashi
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Patent number: 6610409Abstract: Multilayer articles are disclosed which comprise: a substrate layer comprising at least one thermoplastic polymer, thermoset polymer, cellulosic material, glass, or metal, and at least one coating layer thereon, said coating layer comprising at least one stabilizer additive and a thermally stable polymer comprising resorcinol arylate polyester chain members substantially free of anhydride linkages linking at least two mers of the polymer chain, prepared by an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.Type: GrantFiled: July 18, 2001Date of Patent: August 26, 2003Assignee: General Electric CompanyInventors: James Edward Pickett, Joseph Anthony Suriano, Steven Thomas Rice, Xiangyang Li
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Patent number: 6608166Abstract: A three dimensional copolymer network of polyphenylene ether segments and styrenic resins such as styrene/acrylonitrile copolymers provide articles of high heat reesistance and dielectric properties suitable for use in electronic components. Methods for preparing the copolymers employ polyphenylene ether polymers with end caps having at least one pair of unsaturated aliphatic carbon atoms, i.e. carbon-carbon double bond, and polymerize styrene monomers and acrylonitrile monomers or styrene/acrylonitrile copolymers or both in the presence of these polyphenylene ether polymers.Type: GrantFiled: August 30, 2001Date of Patent: August 19, 2003Assignee: General Electric CompanyInventors: Hua Guo, Manuel Cavazos, John B. Yates, III
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Patent number: 6599979Abstract: A polymer composition containing carboxyl group which is excellent in water solubility, thickening properties and flow characteristics. This composition comprises (A) a cross-linked polymer comprising (a) an &agr;,&bgr;-unsaturated carboxylic acid and (b) a compound having at least two ethylenically unsaturated groups, and (B) at least one polymer selected from among polymers comprising vinylpyrrolidone as an essential monomer and polyethylene oxide.Type: GrantFiled: November 15, 1999Date of Patent: July 29, 2003Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Masato Fujikake, Shinji Kobayashi, Shigeki Hamamoto, Mitsutaka Tabata, Tomoki Kawakita
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Patent number: 6596843Abstract: Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: interfacial method for preparing polymers comprising resorcinol arylate polyester chain members substantially free of anhydride linkages linking at least two mers of the polymer chain, comprising the steps of: (a) preparing an aqueous solution comprising at least one resorcinol moiety, said solution having a pH less than or equal to about 5; (b) after step (a), preparing a mixture comprising the resorcinol moiety, at least one catalyst and at least one organic solvent substantially immiscible with water; and (c) adding to the mixture from (b) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.Type: GrantFiled: September 28, 2001Date of Patent: July 22, 2003Assignee: General Electric CompanyInventors: Daniel Joseph Brunelle, Paul Dean Sybert, Gregory Allen O'Neil, Joseph Anthony Suriano, Tiberiu Mircea Siclovan, Zhaohui Su
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Publication number: 20030130421Abstract: A resin composite covered piping material is provided having high heat resistance and excellent flame retardation property, anti-corrosion property, chemical resistance, insulation property and sufficiently high adhesion property with steel material and moreover, is highly economical.Type: ApplicationFiled: December 13, 2002Publication date: July 10, 2003Applicant: General Electric CompanyInventor: Sho Sato
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Patent number: 6579942Abstract: Melt fabricable compositions of at least 50 wt % polytetrafluoroethylene are provided, wherein the composition contains polyaryletherketone and optionally part of the polytetrafluoroethylene is PTFE micropowder.Type: GrantFiled: March 12, 2001Date of Patent: June 17, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Jacob Lahijani
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Patent number: 6576700Abstract: A high flow polyphenylene ether resin composition with improved HDT values and flame retardance comprising a blend of at least two polyphenylene ether resins, a first resin having an intrinsic viscosity of at least 0.3 dl/g, and a second resin having an intrinsic viscosity of less than 0.25 dl/g and preferably having a particle size of at least about 100 &mgr;m. The composition preferably contains less than 30 wt % of the low viscosity polyphenylene ether based on the weight of the total composition. Fiber reinforced and flame retarded compositions also exhibit high HDT values.Type: GrantFiled: April 12, 2000Date of Patent: June 10, 2003Assignee: General Electric CompanyInventor: Nirajkumar Patel
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Patent number: 6575859Abstract: A belt tension adjusting device has a stationary fulcrum shaft, an arm pivotally supported on the fulcrum shaft through a slide bearing formed of a synthetic resin, a tension pulley mounted on the arm at one end thereof for tensioning a belt, and a damper having a piston rod abutting the arm on the other end thereof. The tension pulley is pressed against the belt by pivoting the arm under the force of the piston rod, thereby adjusting the tension of the belt. The inner peripheral surface of said slide bearing, which is in slide contact with said fulcrum shaft, is formed so as to have a surface roughness RA of not more than 6.3 &mgr;m. The slide bearing is formed of a resin composition comprising 65-85 vol % of a thermoplastic polyimide resin, an aromatic polyether ketone resin or a mixture of the resins, and 15-35 vol % of a tetrafluoroethylene resin.Type: GrantFiled: February 20, 2001Date of Patent: June 10, 2003Assignee: NTN CorporationInventors: Kouya Ohira, Masaki Egami
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Patent number: 6538065Abstract: Block copolyestercarbonates substantially free of anhydride linkages linking at least two mers of the polymer chain may be prepared by a method which comprises the steps of: (A) preparing a hydroxy-terminated polyester intermediate in a molten reaction mixture comprising at least one 1,3-dihydroxybenzene moiety and at least one aromatic dicarboxylic acid diarylester under transesterification conditions, said polyester intermediate having a degree of polymerization of at least 4; and (B) conducting a reaction of said polyester intermediate with a carbonate precursor in a two-phase system comprising an aqueous phase and a water-immiscible organic solvent. Articles comprising the copolyestercarbonates are another aspect of the invention.Type: GrantFiled: July 26, 2001Date of Patent: March 25, 2003Assignee: General Electric CompanyInventors: Joseph Anthony Suriano, Tiberiu Mircea Siclovan, Gregory Allen O'Neil, Daniel Joseph Brunelle, Jimmy Lynn Webb
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Patent number: 6531529Abstract: This invention is a flame-retardant, anti-dripping polyamide composition comprising a high temperature polyphthalamide, a halogen-containing organic compound, and an anti-drip effective amount of an anti-drip component comprising a polymer formed from at least one ethylenically unsaturated monomer and at least one carboxylic acid containing monomer.Type: GrantFiled: December 18, 2000Date of Patent: March 11, 2003Assignee: Solvay Advanced Polymers, L.L.C.Inventors: Bruce H. Bersted, Mark G. Reichmann
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Patent number: 6509412Abstract: A soft gel composition includes a hydrogenated block copolymer, a polyphenylene ether, substantially amorphous polyolefin or hydrogenated polydiene, and a compatibilizer blended in respective proportions sufficient to provide the composition with a Shore A hardness of no more than about 30 and a service temperature of up to about 150° C.Type: GrantFiled: September 29, 2000Date of Patent: January 21, 2003Assignee: Bridgestone CorporationInventor: James E. Hall
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Publication number: 20020193520Abstract: The present invention relates to a rubber stock for bead wire compounds comprisingType: ApplicationFiled: February 8, 2002Publication date: December 19, 2002Inventors: Georges Marcel Victor Thielen, Filomeno Gennaro Corvasce
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Patent number: 6485806Abstract: Multilayered moldings, which comprise a laminate structure of (A) a layer of a polyphenylene sulfide resin (hereinafter referred to as PPS resin) composition and (B) a layer of a thermoplastic resin except PPS resins and which are characterized in that the PPS resin composition constituting the layer (A) comprises (A1) 100 parts by weight of a PPS resin, (A2) from 1 to 80 parts by weight of a thermoplastic resin having at least one functional group selected from epoxy groups, acid anhydride groups, carboxyl group and its salts, and carboxylate groups, and (A3) from 5 to 80 parts by weight of a thermoplastic resin that is similar in kind to the thermoplastic resin constituting the layer (B), have good hot water resistance, antifreeze resistance, chemical resistance, heat resistance, abrasion resistance, gas permeation resistance and interlayer adhesion.Type: GrantFiled: November 5, 1997Date of Patent: November 26, 2002Assignee: Toray Industries, Inc.Inventors: Masaru Tateyama, Kazufumi Matsui, Sachio Shimizu, Kazuya Ohno, Norio Shimasaki, Atsushi Ishio, Kazuhiko Kobayashi
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Patent number: 6486246Abstract: A hot melt adhesive polyolefin composition having a viscosity from 7,000 to less than 500,000 mPa·sec, at 190° C. including (by weight): I) 5-85% of a crystalline propylene polymer selected from a propylene homopolymer and a copolymer of propylene and ethylene or a C4-C10 &agr;-olefin or blends thereof, having an isotactic index from 80 to 98%; II) 5-85% of an heterophasic polyolefin composition including: (i) a crystalline propylene polymer and (ii) and an amorphous copolymer of ethylene and propylene or a C4-C10 &agr;-olefin or blends thereof, containing less than 40% of ethylene; III) 10-75% of a material selected from aliphatic hydrocarbon resins, terpene/phenolic resin, polyterpenes, rosin, rosin esters and blends thereof; and optionally IV) a mineral paraffinic or naphthalenic oil, an amorphous poly(&agr;-olefin) having low molecular weight or a mixture thereof.Type: GrantFiled: October 4, 1999Date of Patent: November 26, 2002Assignee: Montell Technology Company BVInventor: Jean Marc Vion
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Patent number: 6476125Abstract: A fluorine-containing polymer alloy comprising a grafted fluorine-containing polymer (a) and a polymer (c) containing no fluorine atom, said grafted fluorine-containing polymer (a) comprising a fluorine-containing polymer (d) having hydrogen atoms bonded to carbon atoms of its main chain and a grafting compound having a linking group capable of grafting to the fluorine-containing polymer (d) and a functional group capable of providing an adhesive property, grafted to the fluorine-containing polymer (d).Type: GrantFiled: August 21, 1996Date of Patent: November 5, 2002Assignee: Asahi Glass Company Ltd.Inventors: Jun-ichi Iura, Eiichi Nishi, Masataka Yokota
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Publication number: 20020161119Abstract: The invention relates to rubber compounds comprising at least one double bond-containing rubber, additions of rubber gels, phenolic resin adducts or phenol/formaldehyde condensation products, such as resols or novolaks, and optionally, further fillers and rubber auxiliary substances, and the vulcanizates and molded rubber articles produced from them The rubber compounds according to the present invention are characterized in the uncrosslinked state by good processability (compound viscosity ML 1+4/100° C.<60 ME) and in the vulcanized state by Shore-A hardness values/23° C.>60, high impact resilience values E/23° C.>60% and a low specific density. The vulcanizates are suitable for the production of industrial rubber articles and for various tire components, such as roll coverings, conveyor belt coverings, belts, spinning cops, seals, golf ball cores, shoe soles and bead compounds, tire carcasses, subtread compounds and tire sidewalls.Type: ApplicationFiled: October 16, 2001Publication date: October 31, 2002Inventors: Werner Obrecht, Anthony Sumner
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Patent number: 6469098Abstract: Disclosed is a resin composition containing the following components (A), and (B) or optionally, (C), (D), and (E): (A) an atactic polystyrene or a mixture of an atactic polystyrene and a rubber-like elastic substance: 30 to 95 parts by weight; (B) a syndiotactic polystyrene having a melting point of not higher than 255° C.: 70 to 5 parts by weight; (C) a polyphenylene ether having an intrinsic viscosity of 0.5 deciliter/g or less as measured in chloroform at 25° C.; (D) an inorganic filler; and (E) a polymer having compatibility or affinity with components (A) and (B) and having a polar group. The styrene resin composition exhibits improved solvent resistance and remarkable impact resistance. The composition of the invention is produced by kneading the components within a resin temperature range between the melting point of component (B) and 270° C.Type: GrantFiled: September 13, 2000Date of Patent: October 22, 2002Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Akihiko Okada, Takuma Aoyama
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Publication number: 20020151652Abstract: High flow polyphenylene ether formulations are obtained with the addition of dendritic polymers. High flow is also obtained with the addition of dendritic polymers to flame retardant polyphenylene ether formulations.Type: ApplicationFiled: April 16, 2002Publication date: October 17, 2002Inventor: Adeyinka Adedeji
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Patent number: 6458443Abstract: The invention concerns a stain resist composition comprising: (a) a component selected from the group consisting of (1) an anionically modified phenol formaldehyde polymer comprising a phenol moiety and a formaldehyde moiety, (2) a naphthalene condensate, (3) a lignin sulfonate, (4) a phenol sulfonate derivative, a mixture thereof and (5) a (meth)acrylic polymer comprising residues of acrylic or methacrylic acid; and (b) a polyester.Type: GrantFiled: July 24, 1998Date of Patent: October 1, 2002Assignee: Arrow Engineering, Inc.Inventors: Robert B. Collier, J. Todd Mull
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Patent number: 6455636Abstract: There is disclosed a thermoplastic resin composition comprising; (i) 30 to 94% by weight of a polypropylene (A), (ii) 5 to 69% by weight of a polyphenylene ether (B), and (iii) 1 to 50% by weight of a copolymer (C), provided that a total weight of the components (A), (B) and (C) is 100% by weight, wherein the copolymer (C) has a molar ratio of a structural unit derived from the &agr;-olefin represented by the following formula (I) to a structural unit derived from ethylene of not less than (0.8/(3n+2)/1, CH2=CH—(CH2)nCH2CH3 (I) wherein n is an integer of 0 to 10.Type: GrantFiled: January 16, 2001Date of Patent: September 24, 2002Assignee: Sumitomo Chemical Company, LimitedInventor: Takashi Sanada
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Patent number: 6448334Abstract: Translucent polycarbonate compositions include an aromatic polycarbonate, a cycloaliphatic polyester, and a polyolefin. The compositions have excellent optical characteristics and superior physical properties, particularly low-temperature impact strength, compared to translucent polycarbonate-polyester blends requiring inorganic fillers.Type: GrantFiled: December 19, 2000Date of Patent: September 10, 2002Assignee: General Electric CompanyInventors: Hendrik Verhoogt, Gabrie Hoogland, Mark van Heeringen, Bart Peter Gerard Hendrix