With A Polycarboxylic Acid Or Derivative And A Polyamine Or The Corresponding Salt Thereof; Or With A Lactam; Or With An Aminocarboxylic Acid; Or With The Corresponding Polymers; And Wherein The Monomer Or Polymer Was Derived From At Least One Saturated Reactant Patents (Class 525/178)
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Patent number: 7662884Abstract: It is an object of the present invention, which has been made in view of the above-mentioned state of the art, to provide a cement admixture capable of improving the water-reducing ability of cement compositions and the like and enhancing the strength and durability of hardened products produced therefrom and further capable of adjusting the viscosity of such compositions so as to facilitate the works at the sites of handling the same, as well as a method of producing such cement additive. A cement admixture comprising a polycarboxylic acid polymer and a nitrogen atom-containing compound having non-amide bond, wherein the mass ratio (A/B) between the mass (A) of said polycarboxylic acid polymer and the mass (B) of said nitrogen atom-containing compound having non-amide bond satisfies the relation 200>(A/B)>1.Type: GrantFiled: April 23, 2003Date of Patent: February 16, 2010Assignee: Nippon Shokubai Co., Ltd.Inventors: Tsutomu Yuasa, Hiromichi Tanaka, Noboru Sakamoto, Tomotaka Nishikawa, Hiroko Izukashi, Toru Uno, Tsuyoshi Hirata, Tomiyasu Ueta, Yoshiyuki Onda
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Patent number: 7595285Abstract: A sliding member formed of a resinous material is in sliding contact with a steel member in an automotive internal combustion engine. The resinous material includes a thermoplastic resin composition which includes a fluororesin in an amount ranging from 5 to 40 parts by weight, and a thermoplastic resin other than the fluororesin, in an amount ranging from 95 to 60 parts by weight. The fluororesin contains crosslink formed between at least a part of carbon atoms forming part of a molecule chain of the fluororesin and at least a part of carbon atoms forming part another molecular chain of the fluororesin, and active end group formed at least a part of the molecule chain of the fluororesin.Type: GrantFiled: October 16, 2003Date of Patent: September 29, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Tomohito Ota, Tomihito Hashimoto
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Patent number: 7592464Abstract: Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, wherein the phenolphthalein material comprises greater than or equal to 99 weight percent phenolphthalein, based on the total weight of the phenolphthalein material; quenching the reaction mixture and treating the quenched reaction mixture to obtain a first solid. The first solid is purified by a combination of techniques to produce a solid comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine with sufficient purity to be used as a monomer in the synthesis of clear polymers.Type: GrantFiled: March 30, 2007Date of Patent: September 22, 2009Assignee: SABIC Innovative Plastics IP BVInventors: Rajshekhar Basale, Hyacinth Mary Bastian, Balakrishnan Ganesan, Venkata Rama Narayanan Ganapathy Bhotla, Gurram Kishan, Pushpa Narayanan, Swaminathan Shubashree, Ravindra Vikram Singh
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Patent number: 7585914Abstract: The present invention provides a thermoplastic composition which may be unvulcanized or vulcanized. The thermoplastic composition can be a blend of a thermoplastic engineering resin, a halogenated terpolymer of a C4 to C7 isomonoolefin, a para-alkylstyrene, and a multiolefin. The engineering resin can be a polyamide, such as nylon 6/66 copolymers for example. The isomonoolefin can be an isobutylene for example. The multiolefin can be a C4 to C14 diene, such as isoprene for example.Type: GrantFiled: November 9, 2005Date of Patent: September 8, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Andy Haishung Tsou, David Yen-Lung Chung
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Publication number: 20090221754Abstract: A controlled molecular weight polymer of styrene is provided having bromine substituted thereon. Control of molecular weight is achieved by the use of alph?-methyl styrene dimer as a chain transfer agent. The brominated polymer of styrene is useful as a flame retardant, particularly for polyamides giving improved properties including color retention after molding.Type: ApplicationFiled: May 18, 2009Publication date: September 3, 2009Applicant: Chemtura CorporationInventors: Wayne Meyer, Jennifer L. Bohan, Larry D. Timberlake, James D. Siebecker
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Patent number: 7572839Abstract: A seal ring (10) of the present invention seals operating oil hermetically and is attached to an annular seal ring groove (16) provided on an outer circumference of a shaft member (12). The seal ring (10) includes fluororesin, modified fluororesin formed by being irradiated with an ionizing radiation in a range from 1 kGy to 10 MGy inclusive in a state of being heated up to a melting point thereof or higher under an inert gas atmosphere with an oxygen partial pressure of 1.33 kPa or less, and synthetic resin having a surface energy ranging from +0 N/cm to 20˜10?5 N/cm inclusive of that of the operating oil.Type: GrantFiled: September 29, 2004Date of Patent: August 11, 2009Assignees: Nissan Motor Co., Ltd., Hitachi Cable, Ltd.Inventors: Tomohito Ota, Tomihito Hashimoto, Yasuaki Yamamoto, Hiroo Kusano
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Patent number: 7560514Abstract: A thermoplastic elastomer composition comprising a dynamically vulcanized blend of (A) a partially cured halogenated isobutylene elastomer and (B) a polyamide, wherein a tensile modulus at 100% elongation of the halogenated isobutylene elastomer dispersed in the polyamide matrix is less than 0.60 MPa.Type: GrantFiled: March 6, 2003Date of Patent: July 14, 2009Assignees: ExxonMobil Chemical Patents Inc., The Yokohama Rubber Co., Ltd.Inventors: Yoshihiro Soeda, Andy Haishung Tsou, Yoshiaki Hashimura, Hiroyuki Kaidou, Jerry Willie Ball
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Patent number: 7553912Abstract: A resin comprises a resin containing a vulcanization-activating agent, or crosslinkable group-containing resin (e.g., a resin having an unsaturated bond). Moreover, a composite dispersion may be formed by a combination of a specific resin and rubber [e.g., (a) a combination of a resin, and an unvulcanized rubber containing a vulcanizing agent and a vulcanization-activating agent at a specific ratio; (b) a combination of a polyamide-series resin, and an unvulcanized rubber containing a vulcanizing agent and a polyalkenylene at a specific ratio; (c) a combination of a resin and a silicone-series unvulcanized rubber; and (d) a combination of a polyphenylene ether-series resin containing a polyalkenylene, and an unvulcanized rubber containing a sulfur or sulfur-containing organic compound as a vulcanizing agent].Type: GrantFiled: July 4, 2003Date of Patent: June 30, 2009Assignee: Daicel-Evonik Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda
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Publication number: 20090143534Abstract: Multilayered pellets are provided that contain an ethylene-vinyl alcohol copolymer (EVOH) and a polyamide resin and that have excellent thermal stability during pelletizing and melt molding. The multilayered pellets each are composed of at least two resin layers and include a resin layer A whose main component is EVOH and a resin layer B whose main component is a polyamide resin. In the multilayered pellets, at least 70 mol % of all the terminals of the polyamide resin are blocked by units each containing an imide structure.Type: ApplicationFiled: September 2, 2005Publication date: June 4, 2009Applicant: KURARAY CO. LTD.Inventor: Syukiti Kawamura
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Patent number: 7538158Abstract: A thermoplastic elastomer composition having improved mechanical properties and fatigue resistance comprising (A) a halogenated isobutylene elastomer, (B) polyamide and (C) an amine component selected from tertiary amines and secondary diamines, wherein the elastomers are dispersed as a domain in a continuous phase of the polyamide.Type: GrantFiled: March 6, 2003Date of Patent: May 26, 2009Assignees: ExxonMobil Chemical Patents Inc., The Yokohama Rubber Co., Ltd.Inventors: Andy Haishung Tsou, Yoshihiro Soeda, Hsien-Chang Wang, Matthew Brian Measmer
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Patent number: 7537840Abstract: A hot melt adhesive composition that includes thermoplastic polyamide, adhesion promoter that includes at least one acid group, and wax having a melting point greater than 82° C.Type: GrantFiled: August 5, 2004Date of Patent: May 26, 2009Assignee: H.B. Licensing & Financing, Inc.Inventor: Richard A. Miller
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Patent number: 7531113Abstract: The present invention provides an abrasion resistant composition comprising fluoropolymer and an effective amount of micropulp to increase the abrasion resistance of an article such as a film formed from the composition by at least 25% as compared to film formed from the fluoropolymer by itself. In an especially preferred embodiment, the composition also contains an effective amount of pigment to further increase the abrasion resistance of film formed from the composition as compared to film formed from the fluoropolymer by itself. The invention is especially useful for films formed on a fuser roll.Type: GrantFiled: May 26, 2005Date of Patent: May 12, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Arnold Frances, Laurence Waino McKeen, Osamu Hayakawa, Arnold Lewis Montgomery Service
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Patent number: 7521508Abstract: Two-phase or single-phase admixtures of a plastic and an elastomer, two or more thermoplastics, or two or more elastomers are irradiated (preferably with electron beam radiation) to cross-link the thermoplastic and, in the case of elastomer and thermoplastic admixtures, generate bi-modal molecules having moieties derived from both the elastomer and the thermoplastic.Type: GrantFiled: June 30, 2004Date of Patent: April 21, 2009Assignee: Freudenberg-NOK General PartnershipInventors: Edward Hosung Park, Francis Joseph Walker
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Patent number: 7514524Abstract: Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, wherein the phenolphthalein material comprises greater than or equal to 95 weight percent phenolphthalein, based on the total weight of phenolphthalein material; quenching the reaction mixture and treating the quenched reaction mixture to obtain a first solid. The first solid is then triturated with a trituration solvent and washed to obtain a second solid, wherein the second solid comprises greater than or equal to 97 weight percent 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine, based on the total weight of the second solid. The second solid may be polymerized to form a polycarbonate.Type: GrantFiled: March 30, 2007Date of Patent: April 7, 2009Assignee: SABIC Innovative Plastics IP B.V.Inventors: Rajshekhar Basale, Balakrishnan Ganesan, Venkata Rama Narayanan Ganapathy Bholta, Gurram Kishan, Surendra Kulkarni, Pradeep Nadkarni, Suresh Shanmugam, Ravindra Vikram Singh
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Patent number: 7511115Abstract: Embodiments of the present invention may provide a method of preparing biodegradable polyester polymer materials both in a filament type and a sheet type using a compressed gas. The method of the present invention comprises the following steps: 1) preparing biodegradable polyester polymers through a solution-state polymerization process of a cyclic monomer using a compressed gas as a reaction solvent in the presence of a catalyst; 2) performing a flash-spinning process of the biodegradable polyester polymers prepared above to form a polymer material in a filament type; and 3) performing a calendering process of the polymer material in a filament type prepared above to form a polymer material in a point-bonded sheet type.Type: GrantFiled: February 13, 2007Date of Patent: March 31, 2009Assignee: Korea Institute of Science & TechnologyInventors: Soo Hyun Kim, Sang Heon Kim, Cheol Soo Yoon, Se Yoon Kim, Hang Soo Lee
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Patent number: 7507474Abstract: The invention relates to thermoplastic compositions comprising a polymer matrix and an additive which modifies the rheological behavior of the matrix in the molten state. The purpose of the invention is to provide a preferably non-reactive additive which can be dispersed in the matrix and which can be used to obtain a good compromise in terms of rheological properties/mechanical properties. According to the invention, the additive is a hyperbranched polymer which is functionalized by R<2> radicals, R<2> being a radical of the following type: substituted or non-substituted hydrocarbon, of the silicon type, linear or branched alkyl, aromatic, arylalkyl, alkylaryl or cycloaliphatic, which can comprise one or more unsaturations and/or one or more heteroatoms.Type: GrantFiled: December 16, 2002Date of Patent: March 24, 2009Assignee: RhodianylInventors: Joël Varlet, Florence Clement, Franck Touraud, Sandrine Rochat, Natalia Scherbakoff
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Patent number: 7495056Abstract: The present invention provides: a novel water-absorbing agent, which exhibits an excellent absorption capacity under a load (AAP), gel layer liquid permeation rate under a load (FRUP), saline flow conductivity (SFC), and shape-maintaining property and ball burst strength (BBS) of a swollen water-absorbing agent aggregate, and excellent persistency of these effects for a long time. The water-absorbing agent, which comprises a polymer obtained by a process including the steps of polymerizing and then crosslinking a monomer including acrylic acid and/or a salt thereof, with the water-absorbing agent being characterized by: (1) exhibiting a free swelling capacity of not less than 23 g/g (GV), a gel deformation of not more than 12.5 cm under a short-time load (0.5 hrPT), and a gel deformation deterioration of not more than 3.Type: GrantFiled: June 9, 2006Date of Patent: February 24, 2009Assignee: Nippon Shokubai Co., Ltd.Inventors: Kazushi Torii, Toshimasa Kitayama, Nobuyuki Harada
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Publication number: 20090008051Abstract: They are mixtures of (a) from 1 to 99.9% by weight of a water-soluble epihalohydrin-crosslinked polyamidoamine and (b) from 0.1 to 20% by weight of at least one other cationic polymer.Type: ApplicationFiled: July 7, 2008Publication date: January 8, 2009Applicant: BASF AktiengesellschaftInventors: Ellen KRUGER, Martin Wendker, Stefan Frenzel, Claus Bottcher
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Publication number: 20080312379Abstract: The invention relates to a process for compounding polycondensates selected from the group consisting of polyamide, polyester and polycarbonate, in the presence of an epoxy-containing styrene and/or (meth)acrylic monomer, of a bisphenol A epoxide or of an epoxy-containing natural oil or fatty acid ester, which comprises carrying out the compounding at temperatures less than/equal to 220° C. and in the presence of an activator selected from the group consisting of: zinc, titanium compound and C1-C12-alkyltriphenylphosphonium halide.Type: ApplicationFiled: February 15, 2006Publication date: December 18, 2008Applicant: BASF AktiengesellschaftInventors: Dietrich Scherzer, Andreas Eipper, Carsten Weiss, Motonori Yamamoto, Gabriel Skupin, Uwe Witt
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Publication number: 20080275187Abstract: A thermoplastic elastomer composition possessing superior air impermeability, excellent durability and flexibility. In particular, the composition includes (A) at least one halogenated isobutylene-containing elastomer; and (B) at least one nylon resin having a melting point of about 170° C. to about 260° C.; and (C) a low molecular weight polymeric nylon plasticizer; wherein: (1) the at least one elastomer is present as a dispersed phase of small vulcanized particles in a continuous nylon phase; and (2) the elastomer particles are formed by dynamic vulcanization. Use of a low molecular weight nylon plasticizer provides for improved mixing and rubber dispersion while retaining the high levels of impermeability achievable by the use of nylon resin and halogenated isobutylene-containing elastomer in a dynamically vulcanized composition. Such compositions are particularly useful in applications such as tire innerliners and barrier films or layers as well as hoses.Type: ApplicationFiled: October 27, 2005Publication date: November 6, 2008Applicants: EXXONMOBIL CHEMICAL PATENTS INC., THE YOKOHAMA RUBBER CO., LTD.Inventors: Andy Haishung Tsou, Yoshihiro Soeda, Yuichi Hara, Matthew Brian Measmer
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Publication number: 20080255310Abstract: A thermoplastic elastomer composition having excellent durability and flexibility while possessing superior air impermeability. In particular, a process for producing a thermoplastic elastomer composition having high rubber content by multistage addition of at least one vulcanizable rubber component, in which the time required to substantially cure the at least one rubber component preferably is less the mixer residence time. Such compositions are particularly useful in applications such as tire innerliners and barrier films or layers.Type: ApplicationFiled: October 27, 2005Publication date: October 16, 2008Applicants: EXXONMOBIL CHEMICLAL PATENTS INC., THE YOKOHAMA RUBBER CO., LTD.Inventors: Andy Haishung Tsou, Yoshihiro Soeda, Yuichi Hara, Matthew Brian Measmer
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Patent number: 7425594Abstract: A copolymer and a process of making the copolymer are disclosed. The copolymer is produced from reacting a glycidyl ester and/or ether with a polyol comprising a functionality of at least 2 wherein at least 50% by weight of the copolymer comprises a minimum of 3n+X repeating units, wherein n is a monomer unit and X is a monomer unit and/or other reactant. The copolymer may also include less than 50% of the polymeric units having the same molecular weight. The present invention is further directed to processes for preparing the copolymer and to coating compositions employing the copolymer.Type: GrantFiled: November 23, 2005Date of Patent: September 16, 2008Assignee: PPG Industries Ohio, Inc.Inventors: Jonathan T. Martz, Stephen J. Thomas
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Publication number: 20080220271Abstract: The invention relates to the use of a thermoplastic composition in a nanostructured form, said composition essentially comprising a grafted copolymer with polyamide blocks, consisting of a polyolefin trunk selected from the maleic ethylene anhydride and maleic alkyl anhydride ethylene (meth)acrylate copolymers, and at least one polyamide graft, for the thermal protection of a substrate, at a temperature higher than 150° C. The invention is characterised in that at least one layer of said composition is deposited on the substrate. According to a preferred embodiment, the coating layer is deposited by coextrusion on the substrate layer, especially for obtaining tubes or pipes used in petrol lines.Type: ApplicationFiled: February 10, 2006Publication date: September 11, 2008Applicant: Arkema FranceInventors: Martin Baumert, Jean-Jacques Flat, Nicolas Amouroux
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Patent number: 7411022Abstract: A method is provided for making a reinforced polymer electrolyte membrane, such as may be used in electrolytic cells such as fuel cells, by mixing a sulfonate- or sulfonyl halide-functional polymer with a bisamidine compound and subsequently trimerizing the amidine groups of the bisamidine compound to form triazine linkages. The sulfonyl halide or sulfonate groups may then be converted to sulfonic acid groups, yielding a polymer electrolyte reinforced with a polytriazine.Type: GrantFiled: July 27, 2007Date of Patent: August 12, 2008Assignee: 3M Innovative Properties CompanyInventors: Miguel A. Guerra, Michael A. Yandrasits
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Publication number: 20080188587Abstract: A blend of nanocomposites is disclosed, with a polyolefin nanocomposite preferably serving as a continuous phase and a polyamide nanocomposite preferably serving as a discontinuous phase. The exfoliated nanoclay in both nanocomposites contributes stiffness, toughness and flame retardancy to the blend. Other optional ingredients include conventional essentially halogen-free flame retardants, intumescent essentially halogen-free flame retardants, and other typical polymer compounding additives. The compound can be processed as a thermoplastic into any practical article needing stiff, tough, and flame retardancy properties.Type: ApplicationFiled: December 22, 2005Publication date: August 7, 2008Applicant: PolyOne CorporationInventor: Roger W. Avakian
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Patent number: 7368503Abstract: This invention relates to a blend of biodegradable polymers comprising: (A) about 5% to about 95% by weight of at least one flexible biodegradable polymer (A) having a glass transition less than about 0° C., (B) about 5% to about 95% by weight of at least one rigid biodegradable polymer (B) having a glass transition greater than about 10° C., and (C) about 0.25 to about 10 weight % of at least one compatibilizer (C), said percentages being based on the total weight of the polymer blend; where the polymer blend has a higher zero shear melt viscosity than polymers (A) and (B) separately.Type: GrantFiled: November 30, 2004Date of Patent: May 6, 2008Assignee: Eastman Chemical CompanyInventor: Wesley Raymond Hale
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Patent number: 7348397Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composition which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: GrantFiled: November 14, 2006Date of Patent: March 25, 2008Assignee: Arkema FranceInventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Publication number: 20080045657Abstract: The invention provides a method of obtaining a compatible resin blend from at least two incompatible resins which are not conventionally blended with each other. The blend of an incompatible resins is dissolved at a molecular level by being melted and sheared under a high shearing rate by rotating a screw without adding a compatibilizer or the like.Type: ApplicationFiled: August 17, 2006Publication date: February 21, 2008Applicant: NAT'L INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hiroshi Shimizu, Yongjin Li, Toshiyuki Imoto, Akira Kaito, Hironari Sano
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Publication number: 20080044666Abstract: The present invention provides a resin composition comprising an amine-neutralized ethylene acid copolymer. These resin compositions copolymers may be characterized by enhanced adhesiveness and reduced crystallinity. Also provided are shaped articles, multilayer films or sheets, and laminate articles comprising the resin composition.Type: ApplicationFiled: August 17, 2006Publication date: February 21, 2008Inventors: Jerrel C. Anderson, Richard A. Hayes
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Patent number: 7323513Abstract: The thermoplastic resin composition of the invention comprises (A) 50 to 97% by weight of a polyolefin, (B) 2 to 45% by weight of a polyamide resin comprising a diamine component and a dicarboxylic acid component and (C) 1 to 45% by weight of a modified polyolefin and/or styrene copolymer. The polyamide resin is specified by that at least 70 mol % of the diamine component is a constitutional unit derived from m-xylylenediamine and at least 70 mol % of the dicarboxylic acid component is a constitutional unit derived from a C4-C20 straight-chain ?,?-aliphatic dicarboxylic acid and isophthalic acid in a molar ratio of 3:7 to 10:0. With such a chemical component, the thermoplastic resin composition exhibits excellent fuel barrier properties, heat resistance and moldability.Type: GrantFiled: December 22, 2004Date of Patent: January 29, 2008Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Kazunobu Maruo, Kazunobu Sato, Masashi Kurokawa
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Patent number: 7317053Abstract: The present invention relates to aqueous compositions comprising component (A) which comprises at least one water-soluble component comprising at least one functional group that undergoes a crosslinking reaction, preferably upon drying and/or heating; component (B) which comprises at least one film-forming material, preferably a latex material; and component (C) which comprises at least one component that provides at least one of moisture and/or water barrier properties and/or vapor barrier properties greater than that provided by the combination of components (A) and (B) alone.Type: GrantFiled: July 10, 2000Date of Patent: January 8, 2008Assignee: Hercules IncorporatedInventors: Robert A. Gelman, Matthew B. Howle, Andrea Keys, William W. Maslanka, Jeffrey I. Melzer, Michael T. Raab, Richard A. Stuhrke, Robert G. Szewczyk
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Patent number: 7309738Abstract: The invention provides polymer blends containing polyhydroxyamide and one or more flammable polymers. The polymer blends are flame retardant and have improved durability and heat stability compared to the flammable polymer portion of the blends. Articles containing the polymer blends are also provided.Type: GrantFiled: October 6, 2004Date of Patent: December 18, 2007Assignee: United States of America as Represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Martha K. Williams, Trent M. Smith
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Publication number: 20070238833Abstract: A composition is disclosed which comprises a polyamide, a modifier, and optionally an ABS copolymer, a compatibilizer, or both wherein the modifier includes ethylene copolymer, crosslinked ethylene copolymer, ionomer derived from the ethylene copolymer, crosslinked ionomer derived from the ethylene copolymer, poly(meth)acrylate, or combinations of two or more thereof. The ethylene copolymer can comprise repeat units derived from ethylene, at least one alkyl acrylate or (meth)acrylic acid, and optionally an acid cure site.Type: ApplicationFiled: April 3, 2007Publication date: October 11, 2007Inventors: Christian Leboeuf, Chun Sing Wong
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Patent number: 7259208Abstract: A method is provided for making a reinforced polymer electrolyte membrane, such as may be used in electrolytic cells such as fuel cells, by mixing a sulfonate- or sulfonyl halide-functional polymer with a bisamidine compound and subsequently trimerizing the amidine groups of the bisamidine compound to form triazine linkages. The sulfonyl halide or sulfonate groups may then be converted to sulfonic acid groups, yielding a polymer electrolyte reinforced with a polytriazine.Type: GrantFiled: November 13, 2003Date of Patent: August 21, 2007Assignee: 3M Innovative Properties CompanyInventors: Miguel A. Guerra, Michael A. Yandrasits
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Publication number: 20070179218Abstract: The invention relates to a blend of one or more biopolymers with one or more acrylic copolymers, for the purpose of improving the properties of the biopolymer(s). The biopolymer composition comprises 30-99.9 weight percent of biopolymer(s) and 0.1 to 15 weight percent of one or more acrylic copolymers.Type: ApplicationFiled: December 14, 2006Publication date: August 2, 2007Inventors: Jeffrey Brake, Sri Seshadri
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Patent number: 7250487Abstract: The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group chosen from functional groups (1) to (5) wherein A denotes oxygen, sulphur or NH and X is any unit; the hydrogen bonds in the supramolecular polymer being formed between two identical or different functional groups chosen from the functional groups (1) to (5). The inventive polymers can be used alone, i.e. in the form of a composition which is essentially made from said polymers and, optionally, stabilizers, antioxidants, etc. or in the form of a mixture with other polymers or other products.Type: GrantFiled: January 15, 2003Date of Patent: July 31, 2007Assignee: Arkema FranceInventors: Francois-Genes Tournilhac, Corinne Soulie-Ziakovic, Ludwik Leibler, Laurent Lachaize
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Patent number: 7247369Abstract: Microporous articles formed by thermally induced phase separation from a diluent in combination with a thermoplastic polymer and a fluorochemical additive providing novel fluid repellent articles. Such articles are useful in clothing, barrier membranes, optical films in electronic devices (such as light reflective and dispersive films), and protective garments.Type: GrantFiled: February 3, 2005Date of Patent: July 24, 2007Assignee: 3M Innovative Properties CompanyInventors: James S. Mrozinski, Chetan P. Jariwala
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Patent number: 7195818Abstract: A sealable multi-layer opaque film. In particular, a sealable multi-layer opaque film that is moisture permeable and water resistant. The sealable multi-layer opaque film is an oriented multilayer film with a core layer comprising an orientation-enhancing polymer, a polypropylene homopolymer and a beta crystal nucleator of polypropylene and at least one sealable skin layer.Type: GrantFiled: May 1, 2002Date of Patent: March 27, 2007Assignee: ExxonMobil Oil CorporationInventors: Dan-Cheng Kong, Michael D. Cleckner
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Patent number: 7169853Abstract: Amino acid functionalized polymers useful for graft copolymerization prepared by reacting a mixture containing, for chain transfer, a thio-substituted amino acid and an ethylenically unsaturated monomer.Type: GrantFiled: December 23, 2003Date of Patent: January 30, 2007Assignee: University of Florida Research Foundation, Inc.Inventors: Anthony B. Brennan, Michael P. Zamora, Christopher Batich, Kenneth B. Wagener
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Patent number: 7160978Abstract: A method of making amide polymers with improved back-bone rigidity, stability and/or planarity through the promotion of intra-molecular interactions is disclosed. Amide polymers, in accordance with the embodiments of the invention, are formed using aromatic dicarboxylic acids and heterocyclic diamine precursors or reactive amino-acid heterocyclic precursors. The heterocyclic precursors used in the present invention have heterocyclic structures that include hetero-atoms in a position that is beta relative to one or more reactive amine groups. Preferably, the hetero-atoms are nitrogen atoms. In accordance with further embodiments, precursors include functional groups that promote inter-molecular interactions, intra-molecular interactions and/or enhance solubility of the amide polymers formed.Type: GrantFiled: February 27, 2004Date of Patent: January 9, 2007Inventor: Steven W. Fowkes
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Patent number: 7153905Abstract: Hyperbranched dendron (HD) polymers are synthesized using low molecular weight polyethyleneimine (BPEI-L) as a core and used for gene delivery. The obtained polymers display low toxicity and efficient gene delivery at low nitrogen-to-phosphate (N/P) ratios. Using successive attachment of ethyleneimine moieties to a PEI core, the polymer has a lower relative ratio of linear-to-branched structures than in the core PEI. The more extensive branching enables the polymer to condense plasmid DNA into nanostructure complexes with a size of less than or equal to about 100 nm. The complexes are stable and efficient in transfecting cells in the presence of serum. Bioluminescent imaging of in vivo gene expression using a luciferase reporter gene performed in live mice showed gene expression in the liver and in submandibular lymph nodes.Type: GrantFiled: March 22, 2004Date of Patent: December 26, 2006Assignee: The General Hospital CorporationInventors: Pallab Banerjee, Wilfried Reichardt, Ralph Weissleder, Alexei Bogdanov
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Patent number: 7151136Abstract: The invention relates to a polyamide-based thermoplastic composition comprising, by weight: 50 to 98 parts of a polyamide (A1) nondiamine; 0.2 to 40 parts, preferably 0.2 to 9 parts, of a polyamide (A2) diamine, said polyamide (A2) being different from the polyamide (A1) and the ratio by mass (A2)/(A1) being less than 1; 1 to 60 parts, preferably 1 to 30 parts, of a reactive impact modifier (B) or of a blend of modifiers comprising at least one reactive impact modifier (B) or of a blend (B?) comprising at least one impact modifier and at least one reactive modifier. It also relates to an impact modifier composition and to the process for the preparation of a thermoplastic composition according to the invention using such an impact modifier composition.Type: GrantFiled: April 3, 2001Date of Patent: December 19, 2006Assignee: ArkemaInventors: Thibaut Montanari, Philippe Bussi, Alain Bouilloux
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Patent number: 7144957Abstract: The present invention relates to polymer mixtures comprising hydrogel forming polymers capable of absorbing aqueous fluids, having different pH values and each being preparable by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof, their preparation, use and hygiene articles containing same. More particularly, the invention relates to 2-component polymer mixtures comprising polymers having a pH range from acidic to neutral.Type: GrantFiled: September 26, 2002Date of Patent: December 5, 2006Assignee: BASF AktiengesellschaftInventors: Rüdiger Funk, Norbert Herfert, Mariola Wanior
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Patent number: 7109258Abstract: A polymeric material with antistatic properties, characterised by comprising a dispersion of ions within a polymeric matrix containing heteroatoms.Type: GrantFiled: January 5, 2000Date of Patent: September 19, 2006Assignees: Cryvet S.R.L.Inventors: Gualtiero Valeri, Vito Di Noto
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Patent number: 7045185Abstract: A composition comprising by weight: 70 to 96% of at least one polyamide chosen from PA-11, PA-12, aliphatic polyamides resulting from the condensation of an aliphatic diamine having from 6 to 12 carbon atoms and an aliphatic diacid having from 9 to 12 carbon atoms, and 11/12 copolyamides having either more than 90% of nylon-11 units or more than 90% of nylon-12 units; 4 to 10% of a plasticizer; 0 to 25% of an NBR or H-NBR elastomer; and the sum of the amount of plasticizer and the amount of elastomer is between 4 and 30%; can be manufactured by melt-blending the various constituents using standard techniques for thermoplastics. The composition is particularly useful for pipes used in the operation of offshore oil and gas fields. They exhibit very good ageing resistance. They are also useful for simpler pipes in motor vehicles, these compositions withstanding the ageing caused by the temperature under the bonnet of motor vehicles and the nature of the fluids transported.Type: GrantFiled: December 16, 2004Date of Patent: May 16, 2006Assignee: ArkemaInventors: Bernard Jacques, Bernard Pees, Michael Werth
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Patent number: 7030190Abstract: A thermoplastic resin composition material 1 includes a resin portion (a) 2 made of a thermoplastic resin (A); elastomer portions (b) 3 made of a thermoplastic elastomer (B) having substantially no compatibility with the thermoplastic resin (A) and having a glass transition temperature of lower than or equal to ?40° C.; and polymer portions (c) 4 made of a high polymer (C) having substantially no compatibility with the thermoplastic resin (A) and the thermoplastic elastomer (B), having a glass transition temperature or crystallization temperature of lower than or equal to ?50° C., and having a viscosity at 40° C. of 0.1 to 200000 cP. The material has a structure in which the elastomer portions (b) 3 are dispersed in the resin portion (a) 2, and the polymer portions (c) 4 are dispersed in the elastomer portions (b) 3. Accordingly, low-temperature impact resistance can significantly be improved without deterioration in the other inherent excellent physical properties of the thermoplastic resin.Type: GrantFiled: February 26, 2002Date of Patent: April 18, 2006Assignee: Daicel-Degussa Ltd.Inventors: Naoki Wakita, Hiroaki Arita
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Patent number: 7026036Abstract: Single coat coating systems (22), as well as articles coated with such non-stick coating systems, are provided. The single coat system includes a fluoropolymer copolymer (14a), such as fluoropolymer terpolymer including tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride monomers, with fluoropolymer copolymers are referred to collectively as THV. The single coat system exhibits excellent substrates adhesion and release properties, is resistant to separation failure at the interface between the binder (12) and fluoropolymer components (14a), and exhibits adhesion to smooth substrates (16). The single coat system may also include a high level of fillers to provide increased damage resistance without compromising the above benefits.Type: GrantFiled: August 16, 2001Date of Patent: April 11, 2006Assignee: Whitford CorporationInventors: Lawrence D. Leech, Daniel C. Chung, Michael W. Miller
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Patent number: 7026026Abstract: Balloons for use on medical devices such as catheter balloons are formed from polymer blend products which include a liquid crystal polymer (LCP), a crystallizable thermoplastic polymer, especially thermoplastic polyesters such as PET, and a compatabilizer. The compatabilizer may be an ethylene-maleic anhydride copolymer, an ethylene-methyl acrylate copolymer, an ethylene-methyl acrylate copolymer, an ethylene-methyl acrylate-maleic anhydride terpolymer, an ethylene-methyl-methacrylic acid terpolymer, an acrylic rubber, an ethylene-ethyl acrylate-glycidyl methacrylate terpolymer or a mixture of two or more such polymers.Type: GrantFiled: December 16, 2002Date of Patent: April 11, 2006Assignee: Boston Scientific Scimed, Inc.Inventors: David A. Ferrera, George C. Michaels, Ralph J. Barry, Lixiao Wang, Jianhua Chen
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Patent number: 6984694Abstract: The invention provides chain extenders made from epoxy-functional (meth)acrylic monomers and styrenic and/or (meth)acrylic monomers. The invention further provides polymeric compositions made from the chain extenders and plastic articles made from the compositions. Finally, the invention provides methods of using the chain extenders to improve the properties of virgin, recycled, and reprocessed condensation polymers.Type: GrantFiled: January 15, 2003Date of Patent: January 10, 2006Assignee: Johnson Polymer, LLCInventors: William George Blasius, Jr., Gary A. Deeter, Marco A. Villalobos
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Patent number: 6966999Abstract: Oriented films are prepared. A thermoplastic vulcanizate, prepared by mixing at least 20 wt % of a thermoset rubber by weight of the total composition into a thermoplastic polymer are disclosed. After the mixture is prepared the thermoset rubber is entrained as discrete particles within the continuous thermoplastic polymer phase. The resulting composite is subjected to a stress either by pulling, blow molding, or any other film-forming process as is known in the art. This stress causes the continuous phase polymer molecules to become aligned or oriented in the direction in which the stress was applied, thus creating the oriented thermoplastic vulcanizate of the invention. This material has improved gas permeability and improved flexibility properties.Type: GrantFiled: July 2, 2001Date of Patent: November 22, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventors: Andy H. Tsou, Ilan Duvdevani, Hsien-Chang Wang