Elemental Metal Or Metal Compound Not Containing Silicon Dnrm Patents (Class 524/779)
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Patent number: 7902292Abstract: The present invention relates to two-component paint, which comprises: a first liquid comprising at least one colloidal metal solution which includes at least colloidal metal particles with a sulfur compound of low molecular weight on the particle surfaces and a dispersion medium, the solution containing not less than 1 wt. % of the colloidal metal particles and has a pH of 8-14, and a second liquid comprising at least a curable resin component.Type: GrantFiled: December 20, 2006Date of Patent: March 8, 2011Assignee: Ishihara Sangyo Kaisha, Ltd.Inventor: Masanori Tomonari
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Patent number: 7897675Abstract: The present invention relates to a process for producing a colloidal metal solution, which comprises a first step of forming colloidal metal particles with a sulfur compound of low molecular weight on the particle surfaces in a solution, a second step of adjusting the solution to a pH of not more than 5, thereby aggregating the colloidal metal particles and recovering the colloidal metal particles by filtration, and a third step of dispersing the recovered colloidal metal particles into a dispersion medium at a pH of 8-14.Type: GrantFiled: December 20, 2006Date of Patent: March 1, 2011Assignee: Ishihara Sangyo Kaisha, Ltd.Inventor: Masanori Tomonari
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Publication number: 20100324211Abstract: The object of the invention is a method for the dispersion of reactive monomers, wherein a monomer emulsion (8) is fed at a first pressure through a dispersion jet (7) and a second dispersion (9) is fed laterally behind the dispersion jet at a second pressure that is less than the first pressure, both the emulsion and the dispersion being dispersed with one another in a mixing chamber. Using the method, nanoparticle-laden monomer emulsions may be produced that, after polymerization, produce polymer-coated nanoparticles.Type: ApplicationFiled: March 20, 2008Publication date: December 23, 2010Applicant: EVONIK DEGUSSA GMBHInventors: Andreas Huether, Sebastian Roos, Oliver Ruscitti, Heike Schuchmann, Karsten Koehler, Caroline Sauter, Freddy Aguilar
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Patent number: 7855241Abstract: The invention includes embodiments that relate to a method of improving the abrasion resistance of a plastic article. The method comprises: (a) providing a composition comprising at least one e-beam active nanoparticle compound and at least one thermoplastic polymeric material; (b) forming an article from the composition of step (a); and (c) exposing the article formed in step (b) to an electron beam source. The invention also includes embodiments that relate to an article comprising an abrasion resistant surface.Type: GrantFiled: October 18, 2005Date of Patent: December 21, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Ryo Tamaki, Steven Thomas Rice, Hieu Minh Duong
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Publication number: 20100317797Abstract: The invention relates to a method for the production of high-molecular homo- and Copolyesters of L-, D- and D,L-lactic acids that comprises the process steps of i) the polycondensation of a lactic acid or polytransesterification of esters thereof to a polymeric lactic acid, ii) the cyclizing depolymerization of the polymeric lactic acid to dilactides, and iii) the ring-opening polymerization of the dilactides or mixtures thereof with suitable comonomers, characterized in that in at least one of the process steps i) to iii), a particulate catalyst and/or a particulate stabilizer, each having an average particle diameter of 1 to 100 nm, is/are used in a heterogeneous reaction mixture.Type: ApplicationFiled: November 14, 2008Publication date: December 16, 2010Applicant: JUNGBUNZLAUER AUSTRIA AGInventors: Gerald Rafler, Jutta Rafler, Andreas Windsperger, Robert Edlauer, Josef Gass
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Publication number: 20100218982Abstract: It is an object of the present invention to provide an epoxy resin composition containing an epoxy compound, a low-molecular-weight phenol-modified polyphenylene ether and a cyanate compound as essential components, the epoxy resin composition having excellent dielectric characteristics and exhibiting high heat resistance while maintaining flame retardancy. To achieve this object, the epoxy resin composition of the present invention is a thermosetting resin composition composed of a resin varnish containing (A) an epoxy compound having a number-average molecular weight of 1000 or less and containing at least two epoxy groups in the molecule without containing any halogen atoms, (B) a polyphenylene ether having a number-average molecular weight of 5000 or less, (C) a cyanate ester compound, (D) a curing catalyst and (E) a halogen flame retardant, wherein all of the components (A) to (C) are dissolved in the resin varnish, while the component (E) is dispersed without being dissolved in the resin varnish.Type: ApplicationFiled: June 30, 2008Publication date: September 2, 2010Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Hiroaki Fujiwara, Masao Imai, Yuki Kitai
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Patent number: 7772296Abstract: The present invention provides novel antimicrobial polyurethane compositions having excellent mechanical and biocompatibility properties, and methods to prepare them. The antimicrobial polyurethane compositions include a homogenous distribution of silver ions by incorporating this antimicrobial agent into the composition prior to the complete polymerization of the polyurethane. In preferred embodiments, the silver ion is associated with a carrier, such as zirconium phosphate or soluble glass powder. The present invention also includes components made from the antimicrobial polyurethane compositions, such as medical devices.Type: GrantFiled: June 8, 2007Date of Patent: August 10, 2010Assignee: Advansource Biomaterials CorporationInventors: Harold Elbridge Garey, Jr., Andrew Martin Reed
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Publication number: 20100152324Abstract: The present invention relates to a polyamide-based composition stabilized with respect to light and/or heat comprising at least one stabilizer exhibiting at least one hindered amine functional group. The invention also relates to yarns, fibres, filaments and/or articles obtained from this composition.Type: ApplicationFiled: March 1, 2010Publication date: June 17, 2010Applicant: RHODIANYLInventors: Véronique Bossennec, Thierry Georges Charbonneaux
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Publication number: 20100148666Abstract: An encapsulant composition is provided. The encapsulant composition includes at least one silicone resin monomer and at least one resin monomer selected from the group consisting of acrylic resin monomers and epoxy resin monomers, a filler of about 0.1-15 wt % of the encapsulant composition, and an initiator. The invention also provides a method for fabricating an encapsulant material.Type: ApplicationFiled: December 16, 2009Publication date: June 17, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Lung-Chang Liu, Ming-Hua Chung, Tsung-Ju Hsu, Chih-Fen Chang, Jen-Hao Chen
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Patent number: 7723430Abstract: Provided is a thin film having self-supporting properties and having excellent strength, durability and flexibility and a method for manufacturing the thin film. A thin film having an interpenetrating net-work layer and having a film thickness of 500 nm or less, the interpenetrating net-work layer being constituted of at least a metal oxide and an organic polymer.Type: GrantFiled: December 13, 2006Date of Patent: May 25, 2010Assignee: RikenInventors: Toyoki Kunitake, Richard Vendamme
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Patent number: 7692032Abstract: The present invention relates to a thermal conductive silicone composition containing a siloxane which contains a hydrolytic group represented by the formula (1): where R1 is a group containing an alkoxysilyl group having 1 to 4 carbon atoms, R2 is a siloxy represented by the following formula (2) or a monovalent hydrocarbon group having 6 to 18 carbon atoms, X is a divalent hydrocarbon group having 2 to 10 carbon atoms, a and b are integers of 1 or more, c is an integer of 0 or more, the sum of a+b+c is an integer of 4 or more, R3 is a monovalent hydrocarbon group having 1 to 6 carbon atoms or a hydrogen atom, provided that R3s may be the same as or different from each other; R4 is a monovalent hydrocarbon group having 1 to 12 carbon atoms, Y is a group selected from a methyl group, a vinyl group and R1, and d is an integer of 2 to 500.Type: GrantFiled: September 29, 2004Date of Patent: April 6, 2010Assignee: Momentive Performance Materials Japan LLCInventor: Chisato Hoshino
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Patent number: 7662324Abstract: In an exemplary embodiment, the present method includes the stops of providing a polymer resin to be processed: blending particulate boron nitride (BN) and a fluorine-containing polymer with said polymer resin to provide a resin blend: heating said resin blend to obtain a desired flowability value: and processing said resin blend into a desired shape.Type: GrantFiled: April 30, 2002Date of Patent: February 16, 2010Assignee: Saint-Gobain Ceramics & Plastics, IncInventors: Eugene A. Pruss, Thomas M. Clere, Stuart K. Randa
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Publication number: 20100036052Abstract: A process is proposed for preparing polymers filled with nanoscale metal oxides and comprises the following steps: a) preparing a nanosuspension of one or more crystalline metal oxides, hydroxides or oxide hydroxides by heating a suspension of one or more compounds comprising the corresponding metals in a first polymerizable compound to a temperature greater than the boiling point of water under process pressure and less than the boiling temperature of the first polymerizable compound and also less than the temperature at which the polymerization of the first polymerizable compound commences, ?in the presence of water in an amount corresponding to 1 to 10 oxygen atoms per metal atom of the compound or compounds comprising the corresponding metals, and b) polymerizing the first polymerizable compound under pressure and temperature conditions typical for the first polymerizable compound.Type: ApplicationFiled: November 5, 2007Publication date: February 11, 2010Applicant: BASF SEInventors: Andrey Karpov, Hartmut Hibst, Claudia Mettlach, Lionel Gehringer, Motonori Yamamoto, Berend Eling, Hans-Helmut Goertz
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Patent number: 7557157Abstract: Compounds containing a lanthanide rare earth element or yttrium are effective catalysts for the polymerization of macrocyclic polyester oligomers. The catalysts are stable at elevated temperatures, and the polymerization is rapid, resulting in high monomer conversion, high molecular weight, and a mechanically sound material.Type: GrantFiled: November 9, 2005Date of Patent: July 7, 2009Assignee: E. I. du Pont de Nemours and CompanyInventor: David T. Williamson
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Patent number: 7550531Abstract: Metal amide and metal alkoxide species have been found to catalyze the ring opening polymerization of macrocyclic polyester oligomers. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material.Type: GrantFiled: November 9, 2005Date of Patent: June 23, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Wilson Tam, David T. Williamson
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Patent number: 7514493Abstract: A method for containing at least a portion of radioisotopes, radionuclides, heavy metal or combination thereof contaminating a substrate wherein a containment composition is applied to the substrate. The ingredients within the containment composition interact with the contaminants on the surface of the substrate until the containment composition has polymerized to a water insoluble form containing at least a portion of the contaminates enmeshed therein. The dried composition is removed from the contaminated surface removing with the composition at least a portion of the contaminate.Type: GrantFiled: October 27, 2004Date of Patent: April 7, 2009Assignee: Sandia CorporationInventors: Robert C. Moore, Mark D. Tucker, Joseph A. Jones
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Patent number: 7514499Abstract: N-heterocyclic carbenes are effective catalysts for the ring opening polymerization of cyclic amides. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material.Type: GrantFiled: November 9, 2005Date of Patent: April 7, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Wilson Tam, David T. Williamson
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Patent number: 7488772Abstract: Mixtures or adducts of N-heterocyclic carbenes with metal amides or metal alkoxides are effective catalysts for the polymerization of macrocyclic polyester oligomers. The catalysts are stable at polymerization temperatures, and the polymerization is rapid, resulting in high monomer conversion, high molecular weight, and a mechanically sound material.Type: GrantFiled: November 9, 2005Date of Patent: February 10, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Wilson Tam, David T. Williamson
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Patent number: 7439317Abstract: An amorphous polyester chip having superior processing ability is characterized by a moisture content of not more than 300 ppm and a fine particle content of not more than 500 ppm. A preferred embodiment is a copolymerized polyester chip comprising a main repeating unit consisting of ethylene terephthalate, and 1,4-dimethylene-cyclohexane terephthalate or neopentyl terephthalate, wherein the glycol component of the copolymerized polyester has a specific composition of 50 to 85 mol % of ethylene glycol, 12 to 45 mol % of 1,4-cyclohexanedimethanol or neopentyl glycol and 1.5 to 7.0 mol % of diethylene glycol. Such amorphous polyester chip can be obtained by cooling an amorphous polyester obtained by melt polymerization, cutting the polyester to give a chip, feeding the chip in a treatment tank, drying the chip and removing fine particles.Type: GrantFiled: June 30, 2004Date of Patent: October 21, 2008Assignee: Toyo Boseki Kabushiki KaishaInventors: Keisuke Suzuki, Hiroki Fukuda, Hideki Shimizu, Tsuyoshi Matsunaga
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Patent number: 7425604Abstract: Electrically conductive preformed compositions comprising sulfur-containing polymers in shaped form and the use of preformed compositions in shaped form to seal apertures are disclosed. The preformed compositions can be used to seal an aperture having EMI/RFI shielding effectiveness.Type: GrantFiled: October 24, 2006Date of Patent: September 16, 2008Assignee: PPG Industries Ohio, Inc.Inventors: Michael A. Cosman, Adrian Balladares
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Patent number: 7402630Abstract: A curative composition comprising a cation and an anion of the formula Anq?Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+ is an organo onium, and Aq? is an anion, provided that at least one Aq? is selected from the formula: wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R? groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R? can be the same as R, with the proviso that R? cannot be halo. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.Type: GrantFiled: December 16, 2004Date of Patent: July 22, 2008Assignee: 3M Innovative Properties CompanyInventors: Werner M. A. Grootaert, Eric W. Adair, Miguel A. Guerra
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Publication number: 20080103241Abstract: A resin composition comprising: a tri-functional or more (meth)acrylate having an alkoxysilyl group; and at least one of a metal oxide fine particle having a hydroxyl group on a surface thereof and a metalalkoxide, wherein the tri-functional or more (meth)acrylate having the alkoxysilyl group and the at least one of the metal oxide fine particle having the hydroxyl group on the surface thereof and the metal alkoxide covalently bind, and the production method thereof.Type: ApplicationFiled: October 31, 2007Publication date: May 1, 2008Applicant: NIDEK CO., LTD.Inventors: Naohide ISOGAI, Takeshi FUJITA, Yasuharu YAMADA
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Patent number: 7342062Abstract: Monoazo metal complex compound containing composition, the incidence of skin sensitization in a skin sensitization potential test based on the maximization method of said composition being not more than 20% and method for producing said composition which comprises a step for removing impurity substances using an alcoholic organic solvent; charge control agent comprising said composition and toner containing said charge control agent; coloring agent containing said composition and colored thermoplastic resin composition containing said coloring agent.Type: GrantFiled: November 12, 2003Date of Patent: March 11, 2008Assignee: Orient Chemical Industries, LtdInventors: Akihiro Tada, Tohru Tsuruhara
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Patent number: 7342068Abstract: Aqueous polyurethane dispersions comprising polyurethane polymer and methods for making and using same are disclosed herein. In one aspect of the present invention, aqueous polyurethane dispersions, comprising a polyurethane polymer having a weight average molecular weight ranging from 20,000 to 80,000, are prepared by controlling the weight average molecular weight of the polymer by reacting the isocyanate terminated prepolymer with at least one chain terminating agent; and/or maintaining a N/COOH molar ratio of amine in the neutralizing agent to acid functional group in the isocyanate reactive compound to from about 0.5:1 to about 1:1.Type: GrantFiled: November 18, 2003Date of Patent: March 11, 2008Assignee: Air Products and Chemicals, Inc.Inventors: Eric Howard Klingenberg, Shafiq Nisarali Fazel
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Patent number: 7324343Abstract: The present invention provides a thermally conductive holder for holding a heat-generating component. The thermally conductive holder comprising a material formed from a thermally conductive composition. The thermally conductive composition includes a silicone rubber; and a thermally conductive filler in a range of 40 to 70 percent by volume with respect to total volume of the silicone rubber and the thermally conductive filler. From 35 to 100 percent by volume of the thermally conductive filler is composed of magnesium oxide of 5 ?m or less in average particle size. Said material has a hardness in a range of 20 to 70 as measured by a Type A durometer in conformity with ISO 7619.Type: GrantFiled: July 20, 2004Date of Patent: January 29, 2008Assignee: Polymatech Co., Ltd.Inventor: Kouya Takahashi
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Publication number: 20070221886Abstract: The invention provides a kind of polymer grafted long afterglow phosphor which composed of alkali earth aluminate phosphor grafted by polymer through coordination bond and a method for producing the same. The method for producing a polymer grafted phosphor comprise two steps: the alkali earth aluminate activated by rare earth ions is coordinated with difunctional ligand to form a coordinated long afterglow phosphor; The coordinated long afterglow phosphor was dispersed in organic solvent at 40˜130° C., the ligand was initiated by initiator and could copolymerize with other polymerizable monomer to form the polymer grafted long afterglow phosphor. The formed phosphors have good water resistance and luminescent properties. They can be widely used in fields of luminescent coatings, paints and plastics.Type: ApplicationFiled: August 22, 2006Publication date: September 27, 2007Applicant: Dalian University of TechnologyInventors: Shufen Zhang, Suli Wu, Jinzong Yang
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Patent number: 7179853Abstract: Disclosed are a resin dispersion and a cationic electrodeposition coating composition including the same, in which the dried coating film of the electrodeposition paint is lead-free and has an epoxy-acrylic double-layered structure for displaying excellent properties, and in which an organic solvent content can be minimized. A resin dispersion of a cationic electrodeposition includes an aqueous dispersion prepared by the following processes. The resin dispersion includes a cationic electrodeposition resin, deionized water, an acid for neutralization, a reaction product of manganese phosphate and an acid diluted in an deionized water to 10%, and a cationic surfactant.Type: GrantFiled: January 12, 2004Date of Patent: February 20, 2007Assignee: DPI Co., Ltd.Inventors: Hoon Chung, Seung-Jae Baek, Jong-Myung Hong, Ki-Myong Song
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Patent number: 7157507Abstract: A photocurable silver composition is provided which comprises an ultraviolet light curable organic mixture, a photoinitiator, a silver powder, and a silver flake composition. The silver flake composition comprises at least 20% of the weight of the silver powder. The disclosed compositions may be used to produce silver-containing coatings on a variety of different substrates. Related methods are provided.Type: GrantFiled: November 24, 2003Date of Patent: January 2, 2007Assignee: Allied PhotoChemical, Inc.Inventor: Roy C. Krohn
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Patent number: 7157607Abstract: A process of manufacture of polytrimethylene ether glycol comprising: (a) polycondensing reactant comprising diol selected from the group consisting of 1,3-propanediol, 1,3-propanediol dimer and 1,3-propanediol trimer or mixtures thereof in the presence of acid polycondensation catalyst to form polytrimethylene ether glycol; (b) adding water to the polytrimethylene ether glycol to form an aqueous mixture; (c) heating the aqueous mixture to hydrolyze acid esters formed during the acid catalyzed polycondensation; (d) adding to the hydrolyzed aqueous mixture organic solvent that is miscible with polytrimethylene ether glycol to form (i) organic phase containing the polytrimethylene ether glycol and residual acid polycondensation catalyst from the polycondensing and (ii) aqueous phase; (e) separating the aqueous phase and the organic phase; (f) adding base to the separated organic phase to neutralize the residual acid polycondensation catalyst by forming salts of the residual acid polycondensation catalyst; (gType: GrantFiled: August 16, 2005Date of Patent: January 2, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Hari Babu Sunkara, Howard C. Ng, Wei Zheng
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Patent number: 7153573Abstract: The invention provides a polymer composite particle having superb blending stability even in a W/O emulsion cosmetic, a highly effective ultraviolet protection effect and a good feeling in use. The invention also relates to a method of producing the polymer composite particle and a cosmetic composition containing the polymer composite particle. A preferred polymer composite particle contains a metal oxide coated with a silicone and/or fluorine compound and has an average particle diameter of 1 ?m or less, wherein the polymer composite particle is obtained by polymerizing a crosslinking agent with a vinyl monomer contained in an amount of 25% by weight based on 100% by weight of the sum of total of all the monomers and crosslinking agent and wherein the vinyl monomer has a solubility parameter calculated by the Fedors method of less than about 8.9. A preferred cosmetic composition may contain (A) a microparticle metal oxide having an average primary particle diameter of from 0.001 to 0.Type: GrantFiled: July 31, 2003Date of Patent: December 26, 2006Assignee: Kao CorporationInventors: Makoto Tsuji, Hiromi Nambu, Makoto Inoue, Satoshi Sugawara, Yukio Inomata
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Patent number: 7101961Abstract: The present invention provides a method for preparation of poly(o-phenylenediamine) nano-belt comprising mixing aqueous solutions of o-phenylenediamine and of oxidant in a mole ratio of 1:0.1–1 under stirring; standing for 0.5–2 hrs at room temperature; and obtaining poly(o-phenylenediamine) nano-belt. The method is suitable for large-scale production. In the absence of template and surfactant, aqueous solutions of o-phenylenediamine and of oxidant are mixed in a specified mole ratio and thus obtain a poly(o-phenylenediamine) nano-belt with length of several hundred micrometers, width of several hundred nanometers and thickness of tens nanometers. The method is simple, quick and suitable for large-scale manufacture. The poly(o-phenylenediamine) nano-belt thus prepared possesses excellent semiconductor properties and is one of the most promising conductive polymer materials.Type: GrantFiled: June 10, 2005Date of Patent: September 5, 2006Assignee: Changchun Institute of Applied Chemistry Chinese Academy of SciencesInventors: Erkang Wang, Xuping Sun, Shaojun Dong
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Patent number: 7094830Abstract: A process for preparing an aqueous dispersion of composite particles composed of addition polymer and finely divided inorganic solid is described.Type: GrantFiled: June 14, 2002Date of Patent: August 22, 2006Assignee: BASF AktiengesellschaftInventors: Zhijian Xue, Harm Wiese
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Patent number: 7052765Abstract: A method for manufacturing antibacterial polyester master batches and fibers containing nano-silver particles, the method includes the acts of: mixing a reducing agent, glycol and a silver precursor together to compose a first mixture; esterifying terephthalic acid and glycol to compose a second mixture containing block polymers; mixing the first and second mixtures to make the block polymers further polymerize to achieve a polyester liquid containing nano-silver particles; optionally, cooling the polyester liquid to solidify; and selectively, granulating the solidified polyester to obtain a polyester master batches or melting spinning the polyester to obtain polyester fibers. By reducing the silver ions during polymerizing reaction, the reduced silver particles are separated by polymerized polyester molecules so that the silver particles are evenly distributed inside the polyester master batches without coagulation.Type: GrantFiled: March 9, 2005Date of Patent: May 30, 2006Assignee: Taiwan Textile Research InstituteInventors: Jia-Peng Lin, Yu-Chi Tseng, Huan-Sheng Chien
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Patent number: 7048995Abstract: A polyester resin produced by polycondensing a dicarboxylic acid component containing an aromatic dicarboxylic acid or its ester-forming derivative as the main component and a diol component containing ethylene glycol as the main component in the presence of at least an antimony compound and a phosphorus compound, via an esterification reaction or an ester exchange reaction, which is characterized in that the amount of antimony eluted when immersed in hot water of 95° C. for 60 minutes in the form of particles having a number average particle weight of 24 mg, is not more than 1 ?g per 1 g of the polyester resin, as antimony atoms (Sb).Type: GrantFiled: August 21, 2003Date of Patent: May 23, 2006Assignee: Mitsubishi Chemical CorporationInventors: Yoshihiro Fujimori, Kiyotoshi Fujioka, Masahiro Nukui, Yutaka Yatsugi, Kazuya Nakamichi, Noboru Satou, Toshio Kambe, Hirotsugu Niwa
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Patent number: 7026434Abstract: A composition and a process for producing the composition are disclosed. The composition comprises (1) repeat units derived from a carbonyl compound and a glycol and (2) one or more ultrafine metal oxides. The process can comprise (1) contacting, in the presence of a catalyst and optionally one or more ultrafine metal oxides, a carbonyl compound such as dicarboxylic acid with a glycol under a condition sufficient to produce polyester wherein the glycol can be pretreated with a metal oxide or (2) incorporating an ultrafine metal oxide into or onto polyester. Also disclosed is a process for substantially removing, or reducing the content of, an aldehyde in a glycol which comprises contacting the glycol with at least one metal oxide.Type: GrantFiled: October 15, 2003Date of Patent: April 11, 2006Assignee: E.I. du Pont de Nemours and CompanyInventor: Donald Edward Putzig
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Patent number: 6979752Abstract: A continuous process for converting by transesterification the diester of polytetramethylene ether (PTMEA) to the corresponding polytetramethylene ether glycol (PTMEG). The process is characterized by the fact that the feed, consisting of PTMEA along with an alkanol (preferably methanol) and with an alkali metal oxide, hydroxide or alkoxide catalyst (preferably sodium methaoxide) is made to react in two multistaged reactions in series. In the first reactant, including stages of retention in association with distillation trays of high efficiency, the bulk of conversion is achieved by stripping the alkanol ester formed in the transesterification with vapors of hot alkanol having a reduced content of alkanol ester. The transesterification is completed in the second reaction by stripping the effluent from the first reactor with vapors of hot alkanol almost free of alkanol ester.Type: GrantFiled: October 25, 2000Date of Patent: December 27, 2005Assignee: BASF AktiengesellschaftInventors: Aldo Bertola, Salvatore Cassarino, Myriam Hobe
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Patent number: 6921790Abstract: The present invention is directed to a resin composition superior in barrier properties and also superior in flexibility, secondary processability and interlayer adhesiveness. The present invention is also directed to an environmentally friendly method for producing a resin composition, the method releasing no carboxylic acid such as acetic acid to the peripheral environment. The invention provides an EVOH resin composition (F) which has a content of an alkali metal salt (A), in terms of the alkali metal, of 0.1 to 20 ?mol/g and a content of a carboxyl acid or its salt (C), in terms of carboxylate radical, of 2 ?mol/g or less and which has an ethylene content of 5 to 60 mol % and a saponification degree of from 80 to 99 mol %. In addition, the invention provides a resin composition comprising the EVOH resin composition (F) and an EVOH having an ethylene content of 5 to 60 mol % and a degree of saponification of 99.2 to 100 mol %.Type: GrantFiled: July 22, 2004Date of Patent: July 26, 2005Assignee: Kuraray Co., Ltd.Inventors: Kenji Nakano, Naohiko Uchiumi, Kaoru Ikeda
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Patent number: 6863988Abstract: Monolayer packages comprised of an oxygen scavenging composition suitable for direct contact with package contents and recycle with other polyester bottles are disclosed. The oxygen scavenging composition is comprised of a modified copolymer which is comprised of predominantly polyester segments and an oxygen scavenging amount of oxygen scavenging segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. Use of these oxygen scavenging copolymers in bottles provides a clear and rigid monolayer bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolymers of this invention are over 99 wt % PET and contain less than 50 ppb of extractable components.Type: GrantFiled: October 25, 2001Date of Patent: March 8, 2005Assignee: BP Corporation North America Inc.Inventors: James M. Tibbitt, Paul J. Cahill, George E. Rotter, David P. Sinclair, Gary T. Brooks, Raymond T. Behrends
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Patent number: 6855765Abstract: A two-component polyurethane sealant composition is described. The polyurethane sealant of the invention exhibits improved resistance to degradation by heat and hot water. The composition of the invention includes a novel hindered amine antioxidant.Type: GrantFiled: December 12, 2001Date of Patent: February 15, 2005Assignee: National University of SingaporeInventors: Yit Lin Chew, Suat Hong Goh, Xu Zhou
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Patent number: 6846429Abstract: This invention provides a transparent, paramagnetic polymer composition in which a polymer is completed with sufficient rare earth ions, particularly ions selected from ions in the group of elements 64-69, to provide a polymer with a magnetic mass susceptibility greater than 20×10?6 emu/g measured at 298° K. This invention provides optically responsive devices that employ these transparent, paramagnetic polymers as an element that is responsive to a magnetic field and a means for providing magnetic field. This invention provides transparent labels or markings employing these transparent, paramagnetic polymers.Type: GrantFiled: January 16, 2002Date of Patent: January 25, 2005Assignee: E. I. du Pont de Nemours and CompanyInventor: David M. Dean
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Publication number: 20040229996Abstract: The sprayed polyurethane foil can be demolded rapidly and easily, and has very good tensile strain at break and tear propagation resistance. In essence, the improvements in properties are brought about via a proportion of fumed silica and the omission of amine initiators.Type: ApplicationFiled: March 4, 2004Publication date: November 18, 2004Inventors: Peter Gansen, Guido Hagel
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Publication number: 20040220327Abstract: Electrically conductive preformed compositions comprising sulfur-containing polymers in shaped form and the use of preformed compositions in shaped form to seal apertures are disclosed. The preformed compositions can be used to seal an aperture having EMI/RFI shielding effectiveness.Type: ApplicationFiled: April 30, 2004Publication date: November 4, 2004Applicant: PRC-DeSoto International, Inc.Inventors: Michael A. Cosman, Adrian Balladares
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Patent number: 6774204Abstract: A composition and a process for producing the composition are disclosed. The composition comprises (1) repeat units derived from a carbonyl compound and a glycol and (2) one or more ultrafine metal oxides. The process can comprise (1) contacting, in the presence of a catalyst and optionally one or more ultrafine metal oxides, a carbonyl compound such as dicarboxylic acid with a glycol under a condition sufficient to produce polyester wherein the glycol can be pretreated with a metal oxide or (2) incorporating an ultrafine metal oxide into or onto polyester. Also disclosed is a process for substantially removing, or reducing the content of, an aldehyde in a glycol which comprises contacting the glycol with at least one metal oxide.Type: GrantFiled: September 25, 2002Date of Patent: August 10, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Donald Edward Putzig
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Patent number: 6756440Abstract: A fire resistant resin composition, a method of making the fire resistant resin composition and an electrical wire comprising the fire resistant resin composition are provided. The fire resistant composition includes a halogen-free propylene resin containing propylene as its main monomer component, a halogen-free styrene-based thermoplastic elastomeric resin modified with an unsaturated carboxylic acid or a derivative of such an acid, and a fire resistant metal hydroxide.Type: GrantFiled: December 12, 2001Date of Patent: June 29, 2004Assignees: Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Tatsuya Hase, Takahiko Sugita, Hiroshi Fujimoto, Masashi Sato, Shinichi Matsumoto
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Patent number: 6753438Abstract: The specification describes preparation of materials comprising selected boron anions and processes using them as catalysts for condensation reaction of compounds having silicon-bonded hydroxy or alkoxy groups. Preferred anion compounds comprise borates incorporating quadri-substituted boron in which the substituents include highly halogenated hydrocarbon groups for example pentafluorinated phenyl groups or bis (trifluoromethyl) phenyl groups. Preferred anions are {B(C6F5)4}− and {B(C6(CF3)2H3)4}−.Type: GrantFiled: October 11, 2002Date of Patent: June 22, 2004Assignee: Dow Corning CorporationInventors: Richard Gregory Taylor, Stuart Leadey, Jean De La Croi Habimana
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Patent number: 6746711Abstract: Polymers with biocidal action, process for their preparation and their use The invention relates to polymers consisting essentially of structural units of the formula (1) in which R1 is a C1-C4-alkylene group R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group R4 is methyl or ethyl R5 is hydrogen or methyl and whose molecular weight is between 1000 and 100 000 g/mol, to intermediates for their preparation, to a process for their preparation, and to their use as biocidal coating composition for surfaces and textiles.Type: GrantFiled: January 28, 2003Date of Patent: June 8, 2004Assignee: Clariant GmbHInventors: Gerhard Crass, Uwe Falk, Béla Iván, Gábor Erdödi, Árpád Máthe
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Patent number: 6713601Abstract: Physical properties, such as melting temperature of MPO compositions may be significantly modified by modifying the weight percentage of one or more of the constituent MPOs. For example, removal of a significant portion of the tetramer can afford low melting MPO compositions. In one aspect, the invention is related to a method for modifying a physical property of a MPO composition that includes the steps of (a) providing a composition that has at least two species of MPOs, and (b) changing the weight percentage of at least one species of the MPOs in the composition. In another aspect, the invention is related to a MPO composition that includes at least two species of MPOs where a species of the MPOs having the highest melting temperature is present in an amount less than or equal to 5%.Type: GrantFiled: June 3, 2002Date of Patent: March 30, 2004Assignee: Cyclics CorporationInventor: Peter D. Phelps
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Patent number: 6706396Abstract: The present invention provides processes for producing certain very low inherent viscosity polyesters. Also provided are the low inherent viscosity polyesters in discrete particulate form, and processes for producing the particulate polyesters. The discrete particulate materials are desirable for use in further processes.Type: GrantFiled: October 18, 2002Date of Patent: March 16, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Richard Allen Hayes, Gregory W. Hoffmann
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Patent number: 6706852Abstract: A process for producing a partially ester-exchanged SIPM such as an alkali metal bis(2-hydroxyethyl) 5-sulfoisophthalate produced from an alkali metal dimethyl 5-sulfoisophthalate in an alcohol is disclosed. The partially ester-exchanged SIPM in an alcohol can be used to copolymerize with oligomer of terephthalic acid or dimethyl terephthalate and an alcohol. Also disclosed is a process for controlling the color of a dyeable polyester using a phosphorous compound.Type: GrantFiled: July 2, 2002Date of Patent: March 16, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Jiwen F. Duan, Xianyin Ma
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Patent number: RE40571Abstract: The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity, a process for producing a polyester using the catalyst and a polyester produced thereby. The catalyst comprises a solid titanium compound obtained by dehydro-drying a hydrolyzate obtained by hydrolysis of a titanium halide and which has a molar ratio (OH/Ti) of a hydroxyl group (OH) to titanium (Ti) exceeding 0.09 and less than 4. In the process, the polyester is obtained by polycondensing an aromatic dicarboxylic acid, or an ester-forming derivative thereof, and an aliphatic diol, or ester-forming derivative thereof, in the presence of the catalyst. The resulting polyester has excellent transparency and tint, a titanium content of 1 to 100 ppm, a magnesium content of 1 to 200 ppm and a magnesium to titanium weight ratio of not less than 0.01.Type: GrantFiled: September 16, 2004Date of Patent: November 11, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Takeshi Ohmatsuzawa, Fujito Ehara, Hideshi Hori, Kazuo Toyota, Kenzaburou Fukutani, Junichi Imuta, Akiyoshi Shimizu, Takayuki Onogi, Seiji Noda, Masayuki Sakai, Shoji Hiraoka, Koji Nakamachi, Michio Tsugawa, Satoru Miyazoe