Sulfuric Acid Patents (Class 524/422)
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Patent number: 8957146Abstract: A polyamide resin composition includes (A) polyamide resin, (B) white pigment, and (C) sodium phosphate salt.Type: GrantFiled: June 12, 2013Date of Patent: February 17, 2015Assignee: Cheil Industries Inc.Inventors: In Sik Shim, Jong Cheol Lim, Sun Ho Song, Sang Hwa Lee, Pil Ho Kim
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Publication number: 20140356610Abstract: The present invention concerns fiber made from a polymer comprising imidazole groups, fiber further having: i) a halide anion, the halide anion being present in an amount of 0.05 to 20.1 weight percent, based on weight of fiber; and ii) sulfur, wherein the sulfur is present in the fiber in an amount of 0.05 to 3 weight percent.Type: ApplicationFiled: January 11, 2012Publication date: December 4, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton, David J. Rodini, Andrew J. Sitter
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Patent number: 8859661Abstract: The instant invention is a coating composition, a coated article, and method forming such coated articles. The coating composition comprises (a) a dispersion; and (b) a solution acrylic polymer, an emulsion polymer latex, or combinations thereof. The dispersion comprises at least one or more base polymers selected from the group consisting of an ethylene-based thermoplastic polymer, a propylene-based thermoplastic polymer, and mixtures thereof; at least one or more stabilizing agents; and a fluid medium. A coated article comprises a substrate comprising cellulosic materials; and at least one or more coating layers present on at least one or more surfaces of the substrate. The one or more coating layers may be derived from a coating composition comprising (a) a dispersion; and (b) a solution acrylic polymer, an emulsion polymer latex, or combinations thereof.Type: GrantFiled: November 14, 2008Date of Patent: October 14, 2014Assignee: Dow Global Technologies LLCInventor: Jamel F. Attal
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Patent number: 8809434Abstract: The invention concerns processes for forming a polymer comprising residues of terephthaloyl chloride, paraphenylene diamine, and a salt of formula I wherein A? is a halogen anion, HSO4?, OH?, NO3?, C2H3O2?, or H2PO4?; the process comprising the steps of: a) forming a mixture comprising salt of formula I and paraphenylene diamine in a solvent system comprising an organic solvent and an inorganic salt; and b) adding terephthaloyl chloride to the mixture and allowing the formation of the polymer.Type: GrantFiled: July 27, 2012Date of Patent: August 19, 2014Assignee: EI du Pont de Nemours and CompanyInventor: Kiu-Seung Lee
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Publication number: 20140158316Abstract: Compositions that can be used in a paper material, which may include an anionic polymer, a polyamidoamine epihalohydrin resin, and a stabilizer, are disclosed. Methods for adding the compositions to a paper material are also disclosed.Type: ApplicationFiled: December 5, 2013Publication date: June 12, 2014Inventors: Yuping Luo, Scott Rosencrance
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Publication number: 20140031477Abstract: The invention concerns processes for forming polymer crumb comprising residues of 2-(4-amino phenyl)-5 (6) amino phenyl benzimidazole (DAPBI), paraphenylene diamine (PPD), and terephthaloyl dichloride (TCl), comprising the steps of: i) forming a slurry of b mole percent DAPBI in a solvent system comprising organic solvent and c weight percent of an inorganic salt, wherein the inorganic salt is present in an amount of at least 5 weight present of the organic solvent; ii) contacting the slurry with a less than stoichiometric amount of terephthaloyl chloride to form an prepolymer solution; and iii) contacting the prepolymer solution with y mole percent of PPD and additional TCL to form a polymer solution; wherein the total amount of TCL added in steps ii) and iii) is a stoichiometric amount based on the total amount of DAPBI and PPD added in steps i) and iii); the DAPBI and PPD are added in an amount sufficient for providing a polymer solution having a weight percent solids of 12 percent or greater on a polymerType: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: FREDERICK K. MALLON
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Patent number: 8609784Abstract: A UV-protective water-soluble polyaminoamide comprising UV-absorbing end groups, wherein the polyaminoamide absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, compositions comprising the UV-protective polyaminoamide and methods of treating substrates with the UV-protective polyaminoamide.Type: GrantFiled: August 13, 2009Date of Patent: December 17, 2013Assignee: Nalco CompanyInventors: Yin Hessefort, Mingli Wei, Wayne Carlson
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Publication number: 20130261239Abstract: The invention concerns processes for forming a polymer comprising residues of 2-(4-amino phenyl)-5(6) amino phenyl benzimidazole (DAPBI), paraphenylene diamine (PPD), and terephthaloyl dichloride, comprising the steps of: (a) forming a solution of oligomers having amine end groups from two moles of DAPBI and one mole of terephthaloyl dichloride in a solvent system comprising an organic solvent and an inorganic salt; (b) adding PPD to the solution of oligomers; and (c) adding additional terephthaloyl dichloride to form a polymer.Type: ApplicationFiled: July 27, 2012Publication date: October 3, 2013Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: KIU-SEUNG LEE
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Publication number: 20130203906Abstract: The invention concerns processes for forming a polymer comprising residues of terephthaloyl chloride, paraphenylene diamine, and a salt of formula I wherein A? is a halogen anion, HSO4?, OH?, NO3?, C2H3O2?, or H2PO4?; the process comprising the steps of: a) forming a mixture comprising salt of formula I and paraphenylene diamine in a solvent system comprising an organic solvent and an inorganic salt; and b) adding terephthaloyl chloride to the mixture and allowing the formation of the polymer.Type: ApplicationFiled: July 27, 2012Publication date: August 8, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: KIU-SEUNG LEE
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Publication number: 20130197146Abstract: The invention concerns processes for forming a polymer comprising residues of 2-(4-amino phenyl)-5 (6) amino phenyl benzimidazole (DAPBI), paraphenylene diamine, and terephthaloyl dichloride, comprising the steps of: a) forming a solution of DAPBI and paraphenylene diamine dihydrochloride in a solvent system comprising an organic solvent and an inorganic salt; b) cooling the solution to a temperature of 30° C. or less; c) adding a stoichiometric amount of terephthaloyl dichloride, relative to the total amount of the DAPBI and the paraphenylene diamine dihydrochloride, to the solution; and d) agitating the solution of step c) to form a polymer.Type: ApplicationFiled: July 27, 2012Publication date: August 1, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: KIU-SEUNG LEE
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Publication number: 20130018138Abstract: The invention concerns copolymer crumb derived from the copolymerization of para-phenylenediamine, 5(6)-amino-2-(p-aminophenyl)benzimidazole, and terephthaloyl dichloride having an inherent viscosity of at least 3 dl/g having less than 0.4 mol/Kg of titrate-able acid. In addition, the invention concerns filaments and yarn formed from such polymer crumb and processes for forming the filaments and yarn.Type: ApplicationFiled: January 13, 2012Publication date: January 17, 2013Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: KIU-SEUNG LEE, FREDERICK K. MALLON, CHRISTOPHER WILLIAM NEWTON
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Patent number: 8349933Abstract: A flame retardant composition and method for making flame retardant articles. The flame retardant composition can include a silicone polyetherimide, an fibrillated polytetrafluoroethylene, and a zinc borate. The silicone polyetherimide can be present in an amount of from about 99.6 to about 80.0 percent by weight. The silicone polyetherimide can have from about 5 to about 50 percent by weight dimethyl siloxane units, and less than about 100 ppm amine end groups. The fibrillated polytetrafluoroethylene can be present in an amount of from more than about 1.25 to about 5.0 percent by weight. The fibrillated polytetrafluoroethylene can be encapsulated in a polystyrene, a poly(styrene acrylonitrile), a poly(methyl methacrylate), a polycarbonate, a polyetherimide, a polysulfone, and combinations thereof. The zinc borate can be present in an amount of more than 0 to about 10 percent by weight.Type: GrantFiled: July 21, 2010Date of Patent: January 8, 2013Assignee: Sabic Innovative Plastics IP B.V.Inventors: Yashpal J. Bhandari, Robert Russell Gallucci
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Patent number: 8309642Abstract: A method for dissolving an aramid polymer in sulfuric acid using a double shaft kneader, comprising the steps: dosing the polymer and the solvent into the kneader, mixing the polymer and the solvent to dissolve the polymer in the solvent for obtaining a solution, degassing the solution to obtain a spin dope, and transporting the spin dope out of the kneader, wherein the polymer is an aramid polymer and the solvent is sulfuric acid, and whereby the aramid polymer is dosed into the kneader prior to dosing the sulfuric acid into the kneader.Type: GrantFiled: January 30, 2008Date of Patent: November 13, 2012Assignee: Teijin Aramid B.V.Inventor: Bernardus Maria Koenders
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Publication number: 20120077915Abstract: The present invention provides an aqueous fluororesin dispersion comprising a melt-processable fluororesin which is low in fluorinated surfactant concentration and excellent in dispersion stability even when the concentration of the melt-processable fluororesin is high. The present invention is related to an aqueous fluororesin dispersion comprising a melt-processable fluororesin particle dispersed in an aqueous medium, wherein a concentration of the melt-processable fluororesin is 55 to 75% by mass relative to the aqueous fluororesin dispersion, and a fluorinated surfactant content in the aqueous fluororesin dispersion is not higher than a level corresponding to 100 ppm of the melt-processable fluororesin.Type: ApplicationFiled: December 8, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Chie SAWAUCHI, Nobuhiko TSUDA
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Patent number: 8129460Abstract: A method for producing a spinning solution for producing a polymer fiber, particularly a p-aramid fiber, the polymer being blended with a solvent, mixed, melted, homogenized, and degassed and then discharged, liquid sulfuric acid being used as the solvent and at least the mixing, homogenization, and degassing taking place in a preferably continuously operated single or double cell reactor (1).Type: GrantFiled: May 14, 2008Date of Patent: March 6, 2012Assignee: List Holding AGInventors: Reinhard Geisler, Pierre Liechti, Thomas Isenschmid
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Patent number: 7939547Abstract: The invention provides compounds and pharmaceutical compositions thereof, which are useful for modulating channel activating proteases, and methods for using such compounds to treat, ameliorate or prevent a condition associated with a channel activating protease, including but not limited to prostasin, PRSS22, TMPRSS11 (e.g., TMPRSS11B, TMPRSS11E), TMPRSS2, TMPRSS3, TMPRSS4 (MTSP-2), matriptase (MTSP-1), CAP2, CAP3, trypsin, cathepsin A, or neutrophil elastase.Type: GrantFiled: May 15, 2007Date of Patent: May 10, 2011Assignee: IRM LLCInventors: David C. Tully, Arnab K. Chatterjee, Hank Michael James Petrassi, Badry Bursulaya, Glen Spraggon
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Patent number: 7759414Abstract: Provided are compositions comprising infrared absorptive inorganic nanoparticles and an ethylene copolymer, and methods to produce the compositions. The infrared absorptive inorganic nanoparticles preferably include antimony tin oxide (ATO), indium tin oxide (ITO), lanthanum hexaboride (LaB6), or mixtures thereof. Also provided are polymer blends, polymeric films and sheets, solar control laminates, and processes to produce the polymer blends, polymeric films and sheets and solar control laminates.Type: GrantFiled: July 14, 2005Date of Patent: July 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Richard A. Hayes, Thomas R. Phillips, Lee A. Silverman
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Publication number: 20100160525Abstract: A method for producing a spinning solution for producing a polymer fiber, particularly a p-aramid fiber, the polymer being blended with a solvent, mixed, melted, homogenized, and degassed and then discharged, liquid sulfuric acid being used as the solvent and at least the mixing, homogenization, and degassing taking place in a preferably continuously operated single or double cell reactor (1).Type: ApplicationFiled: May 14, 2008Publication date: June 24, 2010Applicant: LIST HOLDING AGInventors: Reinhard Geisler, Pierre Lichti, Thomas Isenschmid
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Patent number: 7741273Abstract: The present invention relates to novel drug depot implant designs for optimal delivery of therapeutic agents to subjects. The invention provides a method for alleviating pain associated with neuromuscular or skeletal injury or inflammation by targeted delivery of one or more therapeutic agents to inhibit the inflammatory response which ultimately causes acute or chronic pain. Controlled and directed delivery can be provided by drug depot implants, comprising therapeutic agents, specifically designed to deliver the therapeutic agent to the desired location by facilitating their implantation, minimizing their migration from the desired tissue location, and without disrupting normal joint and soft tissue movement.Type: GrantFiled: April 13, 2006Date of Patent: June 22, 2010Inventor: William F. McKay
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Patent number: 7728055Abstract: An object of the present invention is to provide a new granulating process which can recover desired coagulated latex particles with a significantly excellent yield, and can suppress secondary coagulation under the condition having a higher temperature than a softening point of a polymer, without deteriorating the original quality of the polymer itself. A process for producing coagulated latex particles which can suppress the secondary coagulation under the condition having the broad temperature range, without deteriorating the original quality of the polymer itself by spraying or dropping a polymer latex into a gas-phase containing an inorganic salt and/or an acid, and a dispersant in an aerosol form, and dropping or feeding the droplets of the polymer latex into an aqueous phase containing a dispersant.Type: GrantFiled: July 12, 2006Date of Patent: June 1, 2010Assignee: Kaneka CorporationInventor: Takashi Ueda
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Patent number: 7695699Abstract: A metal sulfate alcohol composition as well as a process to produce such composition is disclosed. Also disclosed is a process to produce polyester containing the metal sulfate alcohol composition.Type: GrantFiled: May 21, 2008Date of Patent: April 13, 2010Inventor: Jiwen F. Duan
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Publication number: 20090088505Abstract: The object of this invention is to provide a dope containing a polyamide having a hydroxyl-group-possessing aromatic ring, which exhibits optical anisotropy and has excellent formability, and the dope contains a polymer having a recurring unit of the following formula (I), wherein Ar1 is and having an inherent viscosity of 1.0 or more and a strong-acidity solvent, has a polymer concentration of 5 to 30% by weight and exhibits optical anisotropy at 50° C.Type: ApplicationFiled: May 22, 2006Publication date: April 2, 2009Applicants: Teijin Limited, Teijin Techno Products LimitedInventors: Masayuki Chokai, Anton Peter De Weijer, Susumu Honda, Hiroaki Kuwahara
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Publication number: 20090023848Abstract: The invention relates to absorptive, crosslinked polymeric compositions that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive, crosslinked polymeric composition further includes an antioxidant and is color stable.Type: ApplicationFiled: July 16, 2007Publication date: January 22, 2009Inventors: Iqbal Ahmed, Mirko Walden, Brian King, Scott J. Smith, Harald Schmidt
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Publication number: 20080063923Abstract: High temperature polymer electrolyte membranes bearing pyridine and tetramethyl biphenyl moieties are provided. Preferred polymers can exhibit good mechanical properties, high thermal and oxidative stability and high doping ability with strong acids. Further provided are MEA on PEMFC type single cells.Type: ApplicationFiled: May 24, 2007Publication date: March 13, 2008Applicant: Advent Technologies SAInventors: Nora Gourdoupi, Nikolaos Triantafyllopoulos, Valadoula Deimede, Lefteris Pefkianakis, Maria Daletou, Stylianos Neophytides, Joannis Kallitsis
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Patent number: 7268180Abstract: A tinting composition for tinting a surface which includes a solvent and a pigment selected from the group consisting of iron oxide, titanium dioxide, mica, calcium sodium borosilicate, organic constituent containing pigments, inorganic constituent containing pigments, fluorescent constituent containing pigments, phosphorescent constituent containing pigments, luminescent constituent containing pigments, ultraviolet absorbing pigments, mineral constituent containing pigments, amorphous glass oxides, polyacrylates, metal flakes, reflective pigments, and mixtures thereof A method of tinting a surface which includes selecting a surface for tinting; mixing a solvent and a pigment to form a tinting composition; and applying the tinting composition to the surface.Type: GrantFiled: April 16, 2002Date of Patent: September 11, 2007Assignee: Shell Oil CompanyInventors: Arif M. Sitabkhan, Bart L. Ivic, Michael W. Howe
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Patent number: 7081512Abstract: A process for treating a composition containing a polyamine-epihalohydrin resin that has a low level of CPD-producing species and good gelation stability is disclosed. A polyamine-epihalohydrin resin is prepared with a ratio of epihalohydrin:amine of less than about 1.1:1.0; The resin is then subjected to a base treatment followed by an acid treatment resulting in a resin that has good gelation storage stability and produces low levels of CPD.Type: GrantFiled: May 4, 2004Date of Patent: July 25, 2006Assignee: Hercules IncorporatedInventor: Richard J. Riehle
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Patent number: 6864335Abstract: In forming pressure sensitive adhesive microspheres by copolymerizing a non-ionic monomer of an alkyl acrylate or alkyl methacrylate ester of a non-tertiary alcohol and an ionic monomer copolymerizable with said non-ionic monomer, non-free radically polymerizable acid is present during the polymerization to promote formation of solid rather than hollow microspheres and to reduce residual unconverted ionic monomer. These microspheres exhibit reduced adhesive transfer in downstream use as a repositionable pressure sensitive adhesive. A water soluble initiator is optionally added to the polymerization mixture after achieving about 90% conversion of the non-ionic monomer to further reduce residual unconverted ionic monomer.Type: GrantFiled: June 21, 2001Date of Patent: March 8, 2005Assignee: Surf Chip, Inc.Inventors: Jong-Shing Guo, Sharon D. Trembley
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Patent number: 6814890Abstract: A process for preparing a mixed solvent adhesive solution involving mixing an alcohol and an adhesive to form an adhesive solution; mixing a charge transporting molecule and a solvent other than alcohol to form a charge transport solution; mixing the charge transport solution with the adhesive solution to form a mixed solvent solution; mixing an electrically conductive filler and a solvent to form a filled solvent solution; and mixing the filled solvent solution to the mixed solvent solution so as to form a mixed solvent adhesive solution.Type: GrantFiled: July 3, 2001Date of Patent: November 9, 2004Assignee: Xerox CorporationInventors: Ihor W. Tamawskyj, Xiaoying Yuan, Raymond K. Crandall
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Patent number: 6770329Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which oxalic acid is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.Type: GrantFiled: October 17, 2002Date of Patent: August 3, 2004Assignee: BASF Coatings AGInventors: Günther Ott, Joachim Woltering, Wilfried Stübbe, Ulrike Röckrath, Maximilian Bendix, Ulrich Kalck, Jan Berg, Götz-Ekkehard Sapper
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Patent number: 6720369Abstract: A process for preparing silica-filled rubber powder is provided, which includes contacting a salt-containing silica-precipitation suspension with at least one selected from the group including a rubber latex, rubber solution, and rubber emulsion, to form a mixture; and precipitating to produce a silica-filled rubber powder. A silica-filled rubber powder prepared by the process, and compositions and uses containing the same, are also provided.Type: GrantFiled: November 15, 2001Date of Patent: April 13, 2004Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Goerl, Reinhard Stober, Matthias Schmitt, Andreas Gouw
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Patent number: 6562883Abstract: Fine-particle, filled rubber powders prepared by precipitation from aqueous mixtures of a filler suspension and a rubber-latex emulsion in the absence of water-soluble salts of metals of groups IIa, IIb, IIIa, or VIII of the Periodic Table of the Elements and in the absence of alkali metal silicate are used for vulcanizable rubber mixtures.Type: GrantFiled: February 26, 2001Date of Patent: May 13, 2003Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Goerl, Reinhard Stober, Matthias Schmitt
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Patent number: 6554961Abstract: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD.Type: GrantFiled: June 12, 2000Date of Patent: April 29, 2003Assignee: Hercules IncorporatedInventors: Richard James Riehle, Anthony J. Allen, Michaela Hofbauer, Alfred Jacques Haandrikman, Ronald Busink, Mark T. Crisp, John James Hoglen, Huai Nan Cheng, Francis J. Carlin, Jr., John Arthur Lapre, Harold Jabloner
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Patent number: 6509096Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which at least one polyvalent inorganic acid and/or oxalic acid are or is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.Type: GrantFiled: October 16, 2001Date of Patent: January 21, 2003Assignee: BASF Coatings ACInventors: Günther Ott, Joachim Woltering, Wilfried Stübbe, Ulrike Röckrath, Maximilian Bendix, Ulrich Kalck, Jan Berg, Götz-Ekkehard Sapper
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Patent number: 6489393Abstract: A tinting composition for tinting a surface which includes a solvent and a pigment selected from the group consisting of titanium dioxide, mica, and mixtures thereof.Type: GrantFiled: October 24, 2000Date of Patent: December 3, 2002Assignee: Pennzoil-Quaker State CompanyInventors: Arif M. Sitabkhan, Bart L. Ivic, Michael W. Howe
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Patent number: 6451905Abstract: Shear stable aqueous emulsion of amino modified siloxanes may be made by the addition of a mono acid to the emulsion. These compositions may include acids such as (a) hydroxy carboxylic acids; (b) amino dicarboxylic acids; (c) amic acids; (d) monoesters of dicarboxylic acids; (e) monoesters of di-inorganic acids; and (f) diesters of tri-inorganic acids.Type: GrantFiled: February 16, 1999Date of Patent: September 17, 2002Assignee: Crompton CorporationInventors: Kostantinos Spyropoulos, Sue L. Yang, Angelo J. Sabia, Joseph Pavlenyi
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Patent number: 6340720Abstract: A process for making a PVDF-based powder coating compositions using a co-coagulation process and compositions comprising co-coagulated PVDF, co-coagulated PVDF-based powder coating compositions and substances coated with these compositions. Vinylidene fluoride polymer latex compositions are mixed with compatible thermoplastic polymer latex, such as acrylic polymer latex, and a coagulant is added. The coagulant precipitates the vinylidene fluoride and polymer, and the precipitant is filtered and dried forming the powder coating. The powder coating is homogenous. The coating comprises no solvents and can be applied to a number of substrates.Type: GrantFiled: February 14, 2000Date of Patent: January 22, 2002Assignee: Ausimont USA, Inc.Inventors: Shiow-Ching Lin, Michelle Kelly, Bradley Kent
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Patent number: 5889086Abstract: A water repellent for automobile window glass includes dimethyl polyorganosiloxane, an inorganic acid, a water-type solvent, and at least one member selected from the group consisting of alkyl group-containing polyorganosiloxanes each having a specific structure, fluorine resins each having a specific structure, and paraffin waxes.Type: GrantFiled: June 23, 1997Date of Patent: March 30, 1999Assignee: Taiho Industries Co., Ltd.Inventors: Takashi Ushijima, Seigo Shinohara
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Patent number: 5605721Abstract: The present invention is directed to an underlayment composition for an artificial playing surface comprised of a butadiene rubber, such as polybutadiene or styrene-butadiene that is commercially available as recycled polycord tires that have been granulized. An inorganic-base moisture-retaining agent such as vermiculite or perlite is also included in the composition in addition to a binder comprised of a mixture of isocyanate polyurethane and an inorganic acid. The present invention also provides a method of making the present composition. The method comprises the steps of mixing thoroughly granulized particles of butadiene rubber in a mixing container, mixing an inorganic-based moisture-retaining component with the butadiene rubber, mixing an acid having a pH .ltoreq.3 with the butadiene rubber and the inorganic-based moisture-retaining component, and mixing an isocyanate polyurethane with the butadiene rubber, the inorganic-based moisture-retaining component and the acid.Type: GrantFiled: June 7, 1995Date of Patent: February 25, 1997Inventor: Joseph W. Di Geronimo
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Patent number: 5523180Abstract: An ionically conductive material and its use are described. The material comprises at least one salt dissolved in a polymeric solvent and is characterized in that the polymeric solvent essentially consists of a block copolymer comprising at least one solvating segment (A) and at least one segment (B) having excellent mechanical properties, either intrinsically or once a number of segments (B) have been cross-linked. Said material may be used as an electrolyte in various electrochemical systems.Type: GrantFiled: December 15, 1994Date of Patent: June 4, 1996Assignees: Centre National De La Recherche Scientifique, Hydro-QuebecInventors: Michel Armand, Jean-Yves Sanchez, Fannie Alloin
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Patent number: 5514722Abstract: The present invention is directed to an underlayment composition for an artificial playing surface comprised of a butadiene rubber, such as polybutadiene or styrene-butadiene that is commercially available as recycled polycord tires that have been granulized. An inorganic-base moisture-retaining agent such as vermiculite or perlite is also included in the composition in addition to a binder comprised of a mixture of isocyanate polyurethane and an inorganic acid. The present invention also provides a method of making the present composition. The method comprises the steps of mixing thoroughly granulized particles of butadiene rubber in a mixing container, mixing an inorganic-based moisture-retaining component with the butadiene rubber, mixing an acid having a pH.ltoreq.3 with the butadiene rubber and the inorganic-based moisture-retaining component, and mixing an isocyanate polyurethane with the butadiene rubber, the inorganic-based moisture-retaining component and the acid.Type: GrantFiled: August 12, 1994Date of Patent: May 7, 1996Assignee: Presidential Sports Systems, Inc.Inventor: Joseph W. Di Geronimo
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Patent number: 5486560Abstract: A variable-modulus material is composed of a polymer whose constituent unit is a thiophene or pyrrole molecule having from one to three C.sub.4-12 alkyl side chains, or a copolymer whose constituent unit is the thiophene or pyrrole molecule and which includes in a main chain thereof a conjugated compound with a K-electron bond directly bonded to the above molecule, and at least one additive (in an amount of 0.5-20 wt % of said polymer) selected from halogens, protonic acids, and transition metal halides. It greatly decreases in modulus upon application of an electric field as low as 5-150 V/mm and restores its original modulus upon removal of the electric field. It is suitable for use as vibration dampers and shock absorbers.Type: GrantFiled: October 11, 1994Date of Patent: January 23, 1996Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Tohru Shiga, Yoshiharu Hirose, Akane Okada, Toshio Kurauchi
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Patent number: 5475043Abstract: A material with variable viscoelasticity is composed of an electrically insulating polymeric material, and fine particles dispersed therein and capable of electric polarization under an applied electric field. The particles may, for example, be of a conjugated and unsaturated organic compound, a polyelectrolyte, or an organometallic complex salt. The material is capable of a reversible change of viscoelasticity depending on the intensity of the applied electric field.Type: GrantFiled: August 4, 1994Date of Patent: December 12, 1995Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Tohru Shiga, Norio Sato, Yoshiharu Hirose, Akane Okada, Takashi Ohta, Toshio Kurauchi
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Patent number: 5470899Abstract: A process for reducing the pH of anionic polyurethane dispersions which are stabilized by carboxylate or sulfonate groups, which comprises adding a compound which has from one to four ester groups but no acid group or acid halide or anhydride group to the dispersions.Type: GrantFiled: December 28, 1993Date of Patent: November 28, 1995Assignee: BASF AktiengesellschaftInventors: Erich Gulbins, Karl Haeberle, Ulrike Licht, Alexander Wallon
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Patent number: 5401793Abstract: An intumescent fire-resistant coating and a fire-resistant material using the same are disclosed, the coating essentially including (A) at least one inorganic compound selected from the group consisting of a carbide, boride, nitride, carbonitride, or carboboride of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, silicon or chromium and a carbide, nitride or carbonitride of boron, (B) a synthetic resin, and (C) at least one phosphorus and/or sulfur compound capable of forming a Lewis acid on heating.Type: GrantFiled: March 18, 1992Date of Patent: March 28, 1995Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Nobuo Kobayashi, Hikaru Yoshioki, Kenji Yoshida, Katsunobu Sagawa, Shigehisa Ishihara
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Patent number: 5276102Abstract: Electrically conductive polythiopheneamine polymer networks are provided comprising conjugated crosslinks between polythiopheneamine polymer segments of the network. The network can be formed by crosslinking amine functional polythiopheneamine polymers, such as by crosslinking condensation reaction with conjugated polyketone crosslinkers. The amine functional polythiopheneamine polymers can be prepared by polymerization, such as by electropolymerization of amine functional thiophene monomers (the amine functionality generally being protected during polymerization) and, optionally, suitable conjugated copolymerization monomers such as thiophene, pyrrole and/or amine functional pyrrole.Type: GrantFiled: January 7, 1993Date of Patent: January 4, 1994Assignee: Ford Motor CompanyInventors: Giuseppe Rossi, Susan M. Ward, Henk van Oene, Joseph W. Holubka
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Patent number: 5194479Abstract: A silicone rubber composition comprising: (A) a diorganopolysiloxane, (B) a reinforcing filler, (C) an acid strength adjustor, and (D) a curing agent, wherein the extract water pH is in the range of 3.0 to 5.5, said extract water pH being defined in such a way that when 50 g of a toluene solution containing 5.0% by weight of said rubber composition is subjected to extraction with 10 g of deionized water, the pH of the resulting water is defined as the extract water pH. The cured product of said composition is good in extension fatigue resistance and flex fatigue resistance.Type: GrantFiled: March 28, 1991Date of Patent: March 16, 1993Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masaharu Takahashi, Tsutomu Nakamura, Naoki Omura
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Patent number: 5147968Abstract: A composition for absorbing electromagnetic radiation (such as microwave, infrared, visible light radiation ultraviolet radiation), wherein said electromagnetic radiation possesses a wavelength generally in the range of from about 1000 Angstroms to about 50 meters, wherein said composition comprises a polyaniline composition of the formula ##STR1## where y can be equal to or greater than zero and R' and R.sub.2 are independently selected from the group consisting of --H, --OCH.sub.3, --CH.sub.3, --F, --Cl, --Br, --I, --NR.sup.3.sub.2, --NHCOR.sub.3, --OH, --O, --SR.sup.3, --OR.sup.3, --OCOR.sup.3, --NO.sub.2, --COOH, --COOR.sup.3, --COR.sup.3, --CHO, and --CN, where R.sup.3 is a C.sub.1 to C.sub.a alkyl, aryl or aralkyl group.Type: GrantFiled: September 23, 1991Date of Patent: September 15, 1992Assignee: The Ohio State University Research FoundationInventors: Arthur J. Epstein, John M. Ginder, Mitchell G. Roe, Hamid Hajiseyedjavadi
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Patent number: 5115011Abstract: This invention relates to a process for producing a quality-improved water-absorbent polymer in which the aqueous liquid (I), which is obtained by mixing in an aqueous medium at least one kind of a water-soluble salt (A) selected from a group of halogenated compounds, sulfates, acetates, and nitrates, which are derived from at least one kind of a polyvalent metal selected from a group of aluminum, calcium, and magnesium, with at least one kind of a water-soluble salt (B) selected from a group of monovalent metal salts and ammonium salts, which are derived from at least one kind of an oxyacid selected from a group of sulfurous acid and thiosulfuric acid, is mixed with a water-absorbent polymer (II) in a proportion of that the water-soluble salt of the polyvalent metal (A) is in a range of 0.1.about.10 parts by weight against 100 parts by weight of the water-absorbent polymer (II) and the water-soluble salt of the oxyacid (B) is in a range of 0. 1.about.Type: GrantFiled: February 20, 1990Date of Patent: May 19, 1992Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Nobuyuki Harada, Toshihiro Okuno, Tadao Shimomura
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Patent number: 5112529Abstract: The present invention relates to a conductive material and a process for producing said conductive material. More particularly, the present invention relates to a conductive material comprising (a) a substrate obtained from a polycarbodiimide resin and (b) a dopant, which is superior in oxidation resistance, mechanical strengths and flexibility, and useful as a material for electronic field, as well as to a process for producing said conductive material.Type: GrantFiled: September 4, 1990Date of Patent: May 12, 1992Assignee: Nisshinbo Industries, Inc.Inventor: Kazuo Saito
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Patent number: 5093439Abstract: Sulfonic acid-substituted polyaniline compositions and their derivatives are produced by reacting a polyaniline polymer with SO.sub.3 gas. The sulfonated polyaniline compositions have faster electronic and optical responses to electrochemical potentials and improved environmental stability solubility than the parent polyaniline polymer.Type: GrantFiled: May 25, 1990Date of Patent: March 3, 1992Assignee: Ohio State University Research FoundationInventors: Arthur J. Epstein, Jiang Yue