X(c=x)x Wherein X Is Chalcogen Dnrm, E.g., Carbonate, Etc. Patents (Class 524/280)
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Publication number: 20090130041Abstract: A composition comprising (a) a resin composition comprising a block copolymer of the formula hydrocarbon-polyether-polyamide-polyether-hydrocarbon; and (b) a polar liquid. The block copolymer may be prepared by a process comprising reacting together reactants comprising dimer acid, diamine, and a polyether having termination at one end selected from amine, hydroxyl and carboxyl, and termination at another end selected from hydrocarbons. The polar liquid may be one or more of an aromatic liquid, a polar aprotic liquid, a ketone-containing liquid, an ester-containing liquid, an ether-containing liquid, an amide-containing liquid and a sulfoxide-containing liquid. The composition may be a gel at room temperature.Type: ApplicationFiled: January 26, 2009Publication date: May 21, 2009Inventors: Richard C. MacQueen, Mark S. Pavlin
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Publication number: 20090124736Abstract: A hardener composition useful in a two part resin system. The hardener composition includes a reactive carrier, a peroxide catalyst, a thickener and thixotropic agent selected from fumed silica and precipitated silica, and optionally a filler. The hardener composition can have a shelf life of over six months. A two-part polyester resin system and a method of making a polyester resin composition are also disclosed.Type: ApplicationFiled: December 8, 2008Publication date: May 14, 2009Applicant: ILLINOIS TOOL WORKS INC.Inventor: Jeffrey Reynolds
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Patent number: 7511092Abstract: A thermoplastic composition comprises a polycarbonate, an ionizing radiation stabilizing additive, and a poly-substituted aromatic compound of formula: wherein X is an aryl group; Y is a non-hydrogen substituent group, a is 1 to 4, b is 0 to 4, a+b is less than or equal to 4, and c is 0 or 1; and wherein the amounts and identities of the polycarbonate, ionizing radiation stabilizing additive, and poly-substituted aromatic compound are selected such that a molded article having a thickness of 3.18 millimeters and comprising the thermoplastic composition has, after exposure to gamma radiation at 83 kGy and when measured according to ASTM D1925-70, an increase in yellowness index (dYI) of less than or equal to 50, when compared to the unexposed thermoplastic composition.Type: GrantFiled: October 7, 2005Date of Patent: March 31, 2009Assignee: SABIC Innovative Plastics IP B.V.Inventors: Katherine Glasgow, Brian Mullen, Matthew Robert Pixton, Philippe Schottland
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Patent number: 7495050Abstract: Thiocarbonate compounds which, in one embodiment, are utilized as a rheology modifier or associative thickener. The thiocarbonate compounds thicken or increase the viscosity of a composition, preferably an aqueous composition when used in an effective amount. In one preferred embodiment, the thiocarbonate compounds include at least one hydrophilic group containing repeat unit such as derived from acrylic acid, and at least one hydrophobic group to enhance association with other compounds and thus increase viscosity of a composition. Aqueous composition comprising a latex and thiocarbonate associative thickeners are described.Type: GrantFiled: August 20, 2004Date of Patent: February 24, 2009Assignee: Lubrizol Advanced Materials, Inc.Inventors: John Ta-Yuan Lai, Shui-Jen Raymond Hsu
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Publication number: 20090035545Abstract: This invention relates to high density polyethylene blown films having good barrier properties and improved processing characteristics. The method incorporates the use of peroxide which results in improved bubble stability without sacrifice in barrier properties. The polyethylenes have a density greater than about 0.950 g/cc, are relatively narrow in molecular weight distribution MWD (in the range of from about 2.0 to about 6.5), and are of medium molecular weight. In an embodiment, the films also have a rheological breadth parameter, a, that has been reduced by at least about 5%, but not more than 45%, by addition of a peroxide to the polyethylene. The addition of peroxide improves processability without sacrificing strength and barrier properties such as oxygen transmission rate.Type: ApplicationFiled: July 30, 2007Publication date: February 5, 2009Applicant: FINA TECHNOLOGY, INC.Inventors: Gerhard Guenther, Cyril Chevillard, Shannon Hoesing
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Publication number: 20080227897Abstract: One embodiment of the invention includes a product including a coating comprising (a) a primary resin and a blocked isocyanate, and (b) at least one bio-diesel fuel degradation product neutralizing material.Type: ApplicationFiled: March 10, 2008Publication date: September 18, 2008Applicant: Magni Industries, Inc.Inventors: Paul Badyrka, Thomas T. Haig, Warren E. Knape, Gregory Lee Tarrance
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Patent number: 7423082Abstract: Thiocarbonate compounds which, in one embodiment, are utilized as a rheology modifier or associative thickener. The thiocarbonate compounds thicken or increase the viscosity of a composition, preferably an aqueous composition when used in an effective amount. In one preferred embodiment, the thiocarbonate compounds include at least one hydrophilic group containing repeat unit such as derived from acrylic acid, and at least one hydrophobic group to enhance association with other compounds and thus increase viscosity of a composition. Aqueous composition comprising a latex and thiocarbonate associative thickeners are described.Type: GrantFiled: August 18, 2005Date of Patent: September 9, 2008Assignee: Lubrizol Advanced Materials, Inc.Inventors: John Ta-Yuan Lai, Shui-Jen Raymond Hsu, Krishnan Tamareselvy
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Publication number: 20080146711Abstract: A soft resinous sheet article having both flexibility and heat-stable, is prepared from a composition containing a matrix and a filler (C) comprising at least one of a metal carbonate and a metal hydroxide, having an average particle diameter of 0.5 to 30 ?m and showing a decomposition temperature of 250° C. or higher, the matrix containing an acrylic copolymer (A) containing at least one carboxyl group as a functional group and having a molecular weight of 800 to 20000 and an acid value (AV) of 20 to 150; and a compound (B) containing two or more glycidyl groups in its molecule and having a weight per epoxide of 80 to 400. This article is used to for example thermal interface materials, thermal conductive sheet, thermally conductive polymer, heat conductive sheet, heat dissipative sheet and heat transfer material.Type: ApplicationFiled: April 21, 2004Publication date: June 19, 2008Applicant: Achillles CorporationInventors: Takuo Suzuki, Mamoru Ubukata
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Publication number: 20080125334Abstract: A water based solution having a controllable gel time is disclosed. The solution has predetermined ratios of a water soluble silicate solution having at least one alkali metal, a predetermined ratio of a water dispersible polymer, and a predetermined ratio of a water soluble initiator containing a reactive carbonyl compound.Type: ApplicationFiled: November 28, 2006Publication date: May 29, 2008Inventors: LYLE D. BURNS, JAMES E. HESSERT, KENNETH D. OGLESBY, JAMES A. GLASS, MICHAEL A. BURNS
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Patent number: 7214730Abstract: Dispersant compositions are described which contain: (a) a carrier medium comprising glycerol carbonate, the carrier medium present in an amount of from 10 to 80% by weight based on the composition; and (b) one or more polyester dispersants present in an amount of from 20 to 90% by weight based on the composition.Type: GrantFiled: September 27, 2002Date of Patent: May 8, 2007Assignee: Cognis Deutschland GmbH & Co. KGInventors: Ludwig Schieferstein, Manfred Gorzinski
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Patent number: 7205348Abstract: Process of producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises mixing a composition comprising unvulcanized rubber, carbon black and xanthogen polysulfide at an elevated temperature in a non-productive stage and composition suitable for producing unvulcanized rubber useful for producing vulcanized rubber with improved hysteresis, which comprises unvulcanized rubber, a filler comprising carbon black and xanthogen polysulfide.Type: GrantFiled: April 7, 2004Date of Patent: April 17, 2007Assignee: Uniroyal Chemical Company, Inc.Inventors: Joseph F. Stieber, Martin J. Hannon, L. P. Felipe Chibante, James R. Korte, Frank E. Welsh
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Patent number: 6933336Abstract: The present invention provides a golf ball having a polyurethane cover, wherein the polyurethane cover is formed by curing a polyurethane cover composition which comprises an isocyanate group terminated polyurethane prepolymer comprising a specific alicyclic diisocyanate as a polyisocyanate component, and a specific phenylenediamine derivative as a curing agent.Type: GrantFiled: June 16, 2003Date of Patent: August 23, 2005Assignee: SRI Sports LimitedInventor: Masatoshi Yokota
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Patent number: 6864301Abstract: Methods of forming crosslinked polymer particles in situ from polymer precursors such as monomers or oligomers, comprising exposing a composition comprising at least one polymer precursor, a solvent or solvent mixture, and an antisolvent or antisolvent mixture to photoradiation under conditions whereby particles are formed are provided. The polymer precursor may be photosensitive, or a separate polymerization initiator may be used. In a preferred embodiment, the polymer precursor is insoluble in the antisolvent or antisolvent mixture and the solvent or solvent mixture is soluble in the antisolvent or antisolvent mixture at the concentrations used. Crosslinked polymer particles and crosslinked polymer particles comprising a polymer and a bioactive material are also provided. The polymer may be erodable, and the polymer particles formed may be used in a variety of applications, including controlled release of bioactive materials such as drugs.Type: GrantFiled: June 3, 2002Date of Patent: March 8, 2005Assignee: The Regents of the University of ColoradoInventors: Theodore Randolph, Kristi Anseth, Jennifer L. Owens, Corinne Lengsfeld
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Overbased metal carbonate/carboxylate microemulsions and halogen-containing polymers containing same
Patent number: 6835328Abstract: A metal carbonate/carboxylate microemulsion imparting static and dynamic thermal stability to a halogen-containing polymer is provided which comprises (a) a metal carbonate/carboxylate obtained from the reaction of an oxide and/or hydroxide of a metal selected from the group consisting of sodium, potassium, calcium, magnesium, zinc and mixtures thereof and an aliphatic acid in which the aliphatic moiety contains up to about 30 carbon atoms and carbon dioxide in an oil; b) one or more non-phenolic compounds having about two or about three hydroxyl groups; and, c) one or more polyols, alcohol ethoxylates and/or alcohol propoxylates having from about 6 to about 24 carbon atoms in the alcohol and/or 0 to 3 ethylene oxide units and/or 0 to 3 propylene oxide units.Type: GrantFiled: September 24, 2003Date of Patent: December 28, 2004Assignee: Crompton CorporationInventors: Julius Fakinlede, Michael H. Fisch, Ulrich Stewen, Radu Bacaloglu, Shah Mukund, Ilze Bacaloglu, Wahib I. Farahat -
Patent number: 6815478Abstract: The present invention provides a chlorine-containing polymer vulcanizing composition with improved preservation stability. The present invention is a chlorine-containing polymer vulcanizing composition obtained by blending (a) a zeolite compound, (b) a vulcanizing agent, and (c) an optional organic vulcanization accelerator. The zeolite compound can be natural zeolite, an A-type, X-type, or Y-type synthetic zeolite, a sodalite, natural or synthetic mordenite, ZSM-5, or a metal substitution product thereof. The zeolite compound is preferably an activated zeolite compound. With respect to 100 parts by weight of chlorinated polyethylene, (a) preferably 0.5 to 30 parts by weight, more preferably 5 to 25 parts by weight, of the zeolite compound, (b) preferably 0.1 to 5 parts by weight, more preferably 0.5 to 3 parts by weight, of the vulcanizing agent, and (c) preferably 0.5 to 3 mol, more preferably 0.7 to 1.5 mol, of the vulcanization accelerator with respect to 1 mol of (b) the vulcanizing agent are blended.Type: GrantFiled: November 18, 2002Date of Patent: November 9, 2004Assignee: Daiso Co., Ltd.Inventors: Kazuya Tsujimura, Kozo Misumi, Toshiyuki Funayama, Kazunori Yokoyama
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Patent number: 6797798Abstract: Spray polyurea elastomers and reaction systems and methods for making the same. The spray polyurea elastomers are prepared with a prepolymer formed by reacting a low 2,4′-isomer content MDI with an MDI reactive component. This prepolymer is blended with a high 2,4′-isomer content MDI to form a quasi-prepolymer. The quasi-prepolymer is reacted with an amine resin to form polyurea elastomers.Type: GrantFiled: March 27, 2003Date of Patent: September 28, 2004Assignee: Huntsman International LLCInventor: Jay A. Johnston
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Patent number: 6767959Abstract: A filler containing adhesive is described that also in the presence of large amounts of conductive fillers such as low or non-oxidized carbon black shows good antenna impedance. Said adhesive is characterized by the presence of polycarbonate prepolymers, in particular prepolymers containing a group or formula I: wherein R represents linear or branched, saturated or unsaturated aliphatic radical, a saturated or unsaturated cycloaliphatic radical, an araliphatic radical, or an aromatic radical with 3 to 10 carbon atoms, and n=1 to 8, preverably 2 to 5.Type: GrantFiled: January 2, 2002Date of Patent: July 27, 2004Assignee: Sika AG, Vorm. Kaspar Winkler & Co.Inventors: Bernhard Bosshard, Michael Schlumpf
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Patent number: 6753370Abstract: A resin composition comprises a copolymer (A) comprising ethylene as a major component produced with a single-site catalyst, and an ethylene-vinyl alcohol copolymer (B) having an ethylene content of 20-60 mol. % and a degree of hydrolysis of 95% or above, the resin composition satisfying the equation (1): 1/99≦{weight of (A)}/{weight of (B)}≦<99/1 (1) A preferred resin composition comprises a copolymer (A) which has a density of 0.90-0.94 g/cm3 and the resin composition further comprises a carboxylic acid-modified polyolefin (C) and satisfies the equations (2) and (3): 60/40≦{weight of (A)}/{(weight of (B)}≦: 99/1 (2) 0.1/99.9≦X≦: 20/80 (3) wherein X={weight of (C)}/{total weight of (A) and (B)}. Another preferred resin composition comprises a copolymer (A) which has a density of 0.85-0.Type: GrantFiled: March 7, 2002Date of Patent: June 22, 2004Assignee: Kuraray Co., Ltd.Inventors: Shigeki Nakatsukasa, Hiroyuki Ohgi, Kazuyori Yoshimi
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Patent number: 6740699Abstract: The invention relates to methods for obtaining the photochromic latex comprising the polymerization in aqueous emulsion of an initial polymerizable mixture, comprising one or more monomers polymerizable by free-radical mechanism and one or more photochromic compounds and the addition to the initial polymerizable mixture, during the polymerization of the initial polymerizable mixture or to the final latex of at least one agent for stabilizing the photochromic properties. Such latexes can be used in the production of photochromic films. Such films may be used, for example, on optical lenses.Type: GrantFiled: January 11, 2002Date of Patent: May 25, 2004Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Pascale Tardieu, Sylvette Maisonnier, Anne Robert, Jean-Paul Cano
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Publication number: 20040072933Abstract: The invention is directed to the use of multifunctional thiol compounds as adhesion promoters and/or primers to enhance the adhesion of photo or electron beam curable polymers, coatings, adhesives, or sealants to gold, other precious metals, and their alloys. Actinic radiation and electron beam (“EB”) radiation can be used to cure such compositions. The resulting cured compositions are optically clear, low Tg (≦30° C.), high refractive index (>1.50 at 1541 nm), thermally, oxidatively, and hydrolytically stable adhesives and/or coatings for glass and/or metal. The adhesive compositions containing such multifunction thiols can survive, without delamination or separation, testing conditions of 85° C. and 85% relative humidity (“RH”) for a time in excess of 500 hours.Type: ApplicationFiled: September 23, 2002Publication date: April 15, 2004Inventor: Paul J. Shustack
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Patent number: 6667377Abstract: This invention concerns ionomers comprising monomer units of vinylidene fluoride and monomer units of perfluorovinyl ethers having pendant groups containing fluoroalkyl sulfonyl methide or fluoroalkyl sulfonyl imide derivatives and univalent metal salts thereof, and with the uses of said ionomers in eledrochemical applications, electrochemical capacitors and modified electrodes.Type: GrantFiled: May 10, 2001Date of Patent: December 23, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Andrew Edward Feiring, Christopher Marc Doyle, Mark Gerrit Roelofs, William Brown Farnham, Paul Gregory Bekiarian, Hanne A. K. Blau
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Patent number: 6635700Abstract: A composition of matter is disclosed wherein the composition comprises: A) at least one latent mercaptosilane coupling agent; and B) at least one additional mercaptan. Preferably, the composition comprises: A) at least one sulfur vulcanizable rubber; B) at least one latent mercaptosilane coupling agent; C) at least one latent mercaptosilane activator; D) at least one filler; and, optionally, E) at least one additional mercaptosilane. A two pass process for preparing cured articles, such as tires and/or tire treads, which employs the composition is also disclosed.Type: GrantFiled: December 15, 2000Date of Patent: October 21, 2003Assignee: Crompton CorporationInventors: Richard W. Cruse, Martin J. Hannon, Prashant G. Joshi, Frederick D. Osterholtz, Robert J. Pickwell
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Patent number: 6531223Abstract: A water based coating composition which does not require a primer for application over wood, masonry, metal, vinyl siding and previously painted surfaces and can be applied over these surfaces in a single coat to provide the tannin blocking, hiding, corrosion resistance and durability of a conventional primer plus two coats of latex paint.Type: GrantFiled: April 16, 2001Date of Patent: March 11, 2003Assignee: The Sherwin-Williams CompanyInventors: Darlene D. Rota, Lorette Madigan, Elizabeth C. Bell, Robert A. Martuch
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Publication number: 20020156163Abstract: Coating compositions containing coalescents and a latex polymer, wherein the coalescent has a volatile organic content of less than about 50% and is dispersible in the coating composition.Type: ApplicationFiled: February 22, 2002Publication date: October 24, 2002Applicant: Valspar Sourcing, Inc.Inventors: Larry B. Brandenburger, Bruce Sicklesteel, Mary Jane Owens
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Patent number: 6297313Abstract: According to the teachings of the present invention, a sprayable adhesive system is produced by a method which subsequently sprays the system onto and adheres together lignocellulosic particles in the formation of a lignocellulosic particulate composite structures. The sprayable adhesive system is formed prior to spraying same onto lignocellulosic particles by precombining the adhesive system components prior to applying same to the lignocellulosic particles. The adhesive system typically comprises an adhesive composition comprising an aldehyde resin and a polymeric isocyanate.Type: GrantFiled: July 22, 1999Date of Patent: October 2, 2001Assignee: Louisiana-Pacific CorporationInventor: Wu-Hsiung Ernest Hsu
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Patent number: 6239202Abstract: A curable silicone pre-elastomer composition is disclosed comprising ammonium carboxylate, which upon cure yields a silicone elastomer having improved heat age properties and suitability for high or low temperature sealing applications.Type: GrantFiled: April 29, 1999Date of Patent: May 29, 2001Assignee: General Electric CompanyInventors: John Aibangbee Osaheni, James Edward Doin, Edwin Robert Evans
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Patent number: 6218012Abstract: A water based coating composition which does not require a primer for application over wood, masonry, metal, vinyl siding and previously painted surfaces and can be applied over these surfaces in a single coat to provide the tannin blocking, hiding, corrosion resistance and durability of a conventional primer plus two coats of latex paint.Type: GrantFiled: March 5, 1999Date of Patent: April 17, 2001Assignee: The Sherwin-Williams CompanyInventors: Darlene D. Rota, Lorette Madigan, Elizabeth C. Bell, Robert A. Martuch
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Patent number: 6172152Abstract: The present invention provides a sol-gel composition which comprises a mixture of a polyalkylene glycol-substituted trialkoxysilane (PAGTAS), a polyalkylene glycol and/or alkyl ether, a tetraalkoxysilane (TAOS), a hydrochloric acid, at least one organic solvent and/or a lithium salt, which mixture is optionally concentrated; a polymeric ion conductive film obtained by coating said compositions with a conventional solution processing method and solid electrochemical elements using the same. According to the present invention, a polymeric ion conductive film having no phase separation, strong adhesiveness for electrode, and ion conductivity of at least 1×10−4 S/cm at room temperature is provided.Type: GrantFiled: August 11, 1998Date of Patent: January 9, 2001Assignee: Korea Research InstituteInventors: Eun-Kyong Kim, Myung-Hoon Lee, Sung-Tai Ko, Kwang-Sup Lee, Yong-Bong Han, Suh-Bong Rhee, Chang-Jin Lee
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Patent number: 6127468Abstract: This invention describes the use of novel blocked mercaptosilanes, wherein the hydrogen atom of the mercaptan functionality has been substituted, in filled polymers. The blocked mercaptosilanes described are unique in that they allow the mixing of fillers with organic polymers to proceed while remaining inert toward coupling to the polymer. The coupling reactions of these blocked mercaptosilicon compounds are triggered by addition of an appropriate deblocking agent, which preferably is tetramethylthiuram monosulfide.Type: GrantFiled: February 19, 1999Date of Patent: October 3, 2000Assignee: CK Witco CorporationInventors: Richard W. Cruse, Robert J. Pickwell
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Patent number: 6080804Abstract: Processes for producing free flowing, Mannich and glyoxal polyacrylamide water soluble and water-swellable granules from a water-in-oil emulsion and compositions comprising such dry polymer granules are disclosed.Type: GrantFiled: June 7, 1995Date of Patent: June 27, 2000Assignee: Cytec Technology Corp.Inventors: William Bloor Davies, Gary Kaui Lani Miller
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Patent number: 6060547Abstract: The invention is a water-in-oil emulsion film forming foundation having a synergistic combination of about 0.5% to about 10% by weight of a water soluble or water dispersible film forming polymer, as well as about 0.5% to about 35% by weight of the composition of one or more plasticizing solvent(s). Both the polymer and solvent(s) combined together in the aqueous phase are in a cosmetically acceptable carrier providing suitable feel and appearance during application, as well as excellent wear and appearance benefits after application. Yet this film forming foundation provides a flexible, light feel that resembles other foundations, and is easily removed with soap and water.Type: GrantFiled: April 28, 1995Date of Patent: May 9, 2000Assignee: The Proctor & Gamble CompanyInventors: Marcia Lang Canter, Brian Dale Barford, Brian David Hofrichter
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Patent number: 5861442Abstract: Process of mixing a fugitive plasticizer, e.g., ethylene carbonate, with moist particulate polyacrylonitrile then removing the water enabling adjustment of the melt viscosity for extrusion of the polyacrylonitrile into film, fiber, pellets and shaped articles. Stretching and heating the extruded polyacrylonitrile film or fiber causes the fugitive plasticizer to exude and vaporize from the film or fiber, carrying with it any remaining acrylonitrile monomer. The resulting film or fiber exhibits substantially increased molecular weight, thus enhancing the tensile strength and barrier properties of the polyacrylonitrile product. The process also produces polyacrylonitrile foam products. A novel cross-linking agent for polyacrylonitrile, divinyloxybutane, is disclosed. Thermostabilizing agents for polyacrylonitrile, N-maleimides and stilbene derivatives, are also disclosed.Type: GrantFiled: August 8, 1996Date of Patent: January 19, 1999Assignee: Solcar Polymer, Limited PartnershipInventors: Edmund H. Merz, Roy A. White, John P. Fouser, Norman Fishman
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Patent number: 5834550Abstract: Thermoplastic molding materials which contain from 0.1 to 10% by weight of a compound of a polyvalent metal are suitable for the production of dull moldings having high impact strength.Type: GrantFiled: December 10, 1996Date of Patent: November 10, 1998Assignee: BASF AktiengesellschaftInventors: Wolfgang Fischer, Norbert Guntherberg
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Patent number: 5804645Abstract: A rubber composition of tire tread, which comprises an emulsion-polymerized styrene-butadiene rubber with a bonded styrene content of not less than 40% by weight which is contained in an amount of 10 to 100% by weight in a rubber component, and a sodium-containing basic inorganic compound and/or a basic sodium salt of organic acid which is blended in an amount of 0.5 to 5.0 parts by weight per 100 parts by weight of the rubber component. Safe driving at a high speed can be realized by using the rubber compositions.Type: GrantFiled: September 24, 1997Date of Patent: September 8, 1998Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Toshiro Matsuo
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Patent number: 5610220Abstract: The invention relates to powdery cross-linked polymers (superabsorbers) capable of absorbing aqueous liquids and blood, which are formed of 55-99.9%-wt. polymerized unsaturated, polymerizable acid-groups-comprising monomers which are neutralized to the extent of at least 25 mol-%, b) 0-40%-wt. polymerized unsaturated monomers copolymerizable with a), c) 0.1-5.0%-wt. of a cross-linking agent, d) 0-30%-wt. of a water-soluble polymer, whereby the weight amounts of a) to d) relate to anhydrous polymers, characterized in that 100 parts of the particle-shaped polymers have been mixed with an aqueous solution consisting of a maximum of 10 parts of an at least 10% phosphoric acid and a) 0.05-0.3 parts of a compound capable of reacting with at least two carboxyl groups and not comprising an alkali-salt-forming group in the molecule, and/or b) 0.Type: GrantFiled: June 30, 1995Date of Patent: March 11, 1997Assignee: Chemische Fabrik Stockhausen GmbHInventors: Helmut Klimmek, Helmut Brehm
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Patent number: 5589520Abstract: Process of mixing a fugitive plasticizer, e.g., ethylene carbonate, with moist particulate polyacrylonitrile then removing the water enabling adjustment of the melt viscosity for extrusion of the polyacrylonitrile into film, fiber, pellets and shaped articles. Stretching and heating the extruded polyacrylonitrile film or fiber causes the fugitive plasticizer to exude and vaporize from the film or fiber, carrying with it any remaining acrylonitrile monomer. The resulting film or fiber exhibits substantially increased molecular weight, thus enhancing the tensile strength and barrier properties of the polyacrylonitrile product. The process also produces polyacrylonitrile foam products. A novel cross-linking agent for polyacrylonitrile, divinyloxybutane, is disclosed. Thermostabilizing agents for polyacrylonitrile, N-maleimides and stilbene derivatives, are also disclosed.Type: GrantFiled: February 3, 1995Date of Patent: December 31, 1996Assignee: Solcas Polymer, Limited PartnershipInventors: Edmund H. Merz, Roy A. White, John P. Fouser, Norman Fishman
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Patent number: 5587421Abstract: A mixture containsa) water-emulsifiable polyisocyanates andb) carbonic esters or lactones as organic solvents.Type: GrantFiled: August 18, 1995Date of Patent: December 24, 1996Assignee: BASF AktiengesellschaftInventors: Peter Weyland, Reinhard Treiber, Alwin Sturm, Horst Seibert, Hans Renz, Jurgen Reichert, Karl Haberle
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Patent number: 5587419Abstract: Blends of chlorinated polyvinyl chloride and chlorinated polyethylene and methods for preparing extruded profiles such as a window spacer, a glazing bead, a window lineal, and a track for lighting, having smooth surface characteristics are disclosed. The blends comprise 100 weight parts CPVC containing from 62% to 72% chlorine, preferably 65% to 71% chlorine and from 10 to 30 weight parts, preferably 15 to 25 parts of chlorinated polyethylene containing from 25 to 45% chlorine and extruding the blend. The preferred embodiments of the invention are further defined by a particular combination for the chlorine content of CPVC, the real weight average molecular weight of CPE (M.sub.w) and polydispersity (M.sub.w /M.sub.n), defined as the ratio of the weight average to number average molecular weight, and extrusion shear rate.Type: GrantFiled: October 10, 1995Date of Patent: December 24, 1996Assignee: The B.F. Goodrich CompanyInventors: Dennis L. Lawson, Robert E. Detterman
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Patent number: 5583171Abstract: Microporous material comprising water insoluble thermoplastic organic polymer and particulate amorphous precipitated silica not only exhibits low particulate emissions during handling and use, but also has a low extactable alkali metal content. Microporous material having these characteristics is especially useful in clean rooms where electronic devices such as integrated circuits are manufactured. Such microporous material may be produced by employing amorphous precipitated silica particles having low alkali metal content as all or a substantial proportion of the amorphous precipitated silica particles constituting the microporous material.Type: GrantFiled: March 31, 1994Date of Patent: December 10, 1996Assignee: PPG Industries, Inc.Inventors: Richard A. Schwarz, Paul L. Benenati, Michael H. McGarry
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Patent number: 5580916Abstract: A description follows of vulcanizable compositions of nitrile rubbers containing a plasticizer, a vulcanizing agent and normal additives, wherein the plasticizer is an organic carbonate selected from those which can be defined with the formula (I): ##STR1## or with the formula (II): ##STR2## wherein R, R.sup.1, R.sup.2, X and n are as defined in the description.Type: GrantFiled: March 9, 1994Date of Patent: December 3, 1996Assignee: Enichem, Synthesis S.p.A.Inventors: Enrico Traverso, Franco Rivetti, Lucio Spelta
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Patent number: 5506288Abstract: Novel silicone pressure sensitive adhesives containing relatively minor amounts of oil- or organic-metal salts are disclosed which exhibit improved high temperature stability properties.Type: GrantFiled: June 6, 1995Date of Patent: April 9, 1996Assignee: General Electric CompanyInventors: Shaow B. Lin, William E. Cooper
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Patent number: 5464893Abstract: A thermoplastic molding composition stabilized against .gamma.-rays and its application for manufacture of medical equipment is disclosed. The composition contains an aromatic polycarbonate and(i) dialkyl and/or dicycloalkyl monosulfides or polysulfides in an amount of 0.001 to 5 weight %, and optionally(ii) aliphatic or cycloaliphatic monoalcohols or polyalcohols or their derivatives in an amount of 0.001 to 2 weight %said percent being relative to 100 weight % of aromatic polycarbonate.Type: GrantFiled: March 22, 1994Date of Patent: November 7, 1995Assignees: Bayer Aktiengesellschaft, Bayer CorporationInventors: Rick L. Archey, Charles E. Lundy, Aaron D. Meltzer, Harald Pielartzik, Gerhard Fennhoff, Ralf Hufen, Klaus Kircher, Rudiger Schubart, Richard Weider
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Patent number: 5441811Abstract: Novel silicone pressure sensitive adhesives containing relatively minor amounts of oil- or organic-metal salts are disclosed which exhibit improved high temperature stability properties.Type: GrantFiled: December 22, 1993Date of Patent: August 15, 1995Assignee: General Electric CompanyInventors: Shaow B. Lin, William E. Cooper
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Patent number: 5434205Abstract: A process for providing extrudable polyacrylonitrile compositions. Dry, particulate polyacrylonitrile having a moisture content of less than about 1.5 percent is mixed with a liquid plasticizer such as ethylene carbonate or propylene carbonate at a mixing temperature of about 140.degree. C. to about 180.degree. C. This process produces an extrudable polyacrylonitrileplasticizer composition which can be extruded to form film, fiber or other extruded or co-extruded products.Type: GrantFiled: August 4, 1993Date of Patent: July 18, 1995Assignee: Solcas Polymer Limited PartnershipInventor: Norman Fishman
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Patent number: 5409771Abstract: The present invention relates to a powdery, water-insoluble, cross-linked resin which absorbs aqueous or serous liquids as well as blood and is composed of a) 55 to 99.9%-wt. polymerized, unsaturated, polymerizable, acid-groups-containing monomers which are neutralized to the extent of at least 25 mol-%, b) 0 to 40%-wt. polymerized, unsaturated monomers copolymerizable with a), c) 0.1 to 5.0%-wt. of a cross-linking agent, and d) 0 to 30%-wt. of a water-soluble polymer, whereby the weight amounts a) to d) relate to anhydrous polymer. The polymer is characterized by the fact that the resin powder has been coated with 0.1 to 5%-wt. of an alkylene carbonate, relative to resin powder, and heated to a temperature of 150.degree. to 300.degree. C. The present invention further relates to a method of producing said polymer and to the use thereof in sanitary articles, such as diapers and the like, and in absorbent constructions consisting of hydrophilic fibers and absorbing resin.Type: GrantFiled: December 29, 1992Date of Patent: April 25, 1995Assignee: Chemische Fabrik Stockhausen GmbHInventors: Kurt Dahmen, Richard Mertens
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Patent number: 5397825Abstract: An active filler composition utilizing scrap rubber, such as automobile tires, as a main or primary ingredient is used in the treatment, recycling, and manufacture of various rubber and plastic articles. A chemical plasticizer and binding agent is used in the production of the composition to plasticize, swell, and soften the scrap rubber. The filler composition is a homogeneous blend of from about 40 to 95 parts by weight of cured rubber particles and from about 5 to 60 parts by weight of the liquid plasticizer and binder. The active filler composition can be further compounded with materials such as polyethylene, polyethylene-terephthallate (PET), polyurethanes, urethanes, polyisocurates, polyacrylics, polyvinylchloride (PVC), and epoxies, to form a composite material for combining with still other materials to impart elastomeric properties.Type: GrantFiled: May 19, 1993Date of Patent: March 14, 1995Inventor: Neal Segrest
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Patent number: 5395893Abstract: A polypropylene resin composition which comprises (A) 100 parts by weight of polypropylene, (B) 20-50 parts by weight of at least one elastomer selected from an ethylenic elastomer, an hydrogenated styrene-butadiene copolymer and a hydrogenated styrene-isoprene block copolymer, (C) 0.3.about.20 parts by weight of polycarbonatediol having a skeleton of aliphatic carbonate with both terminals being a hydroxyl group and (D) 0.about.50 parts by weight of an inorganic filler. The resin composition can provide a molded article having a good adhesive property to a film applied thereon without pretreatment by a halogen-containing solvent.Type: GrantFiled: June 3, 1993Date of Patent: March 7, 1995Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Keigo Suehiro, Katsuyuki Nitta, Takeaki Inokuma, Chihiro Ogawa, Osamu Aoki, Kenji Hamabe, Atsushi Takeuchi
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Patent number: 5358988Abstract: Described are water-in-oil emulsions containing an emulsion polymerizate which is soluble in or swells in water and an oil phase, consisting at least partly of monoether compounds, that is not miscible with water in all proportions. Also described are a method of preparing such emulsions and their use as agents for precipitation, sedimentation, and/or thickening.Type: GrantFiled: July 14, 1993Date of Patent: October 25, 1994Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ludwig Schieferstein, Herbert Fischer, Hermann Kroke, Brigitte Spei, Volker Wehle, Rainer Jeschke, Uwe Ploog
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Patent number: 5357027Abstract: Disclosed is a novel polycarbonate which has(1) a repeating unit (I) represented by the general formula: ##STR1## and a repeating unit (II) represented by the formula: ##STR2## (all the symbols are as defined in the claims); (2) a trihalogenophenoxy group as the end group thereof; and (3) a viscosity average molecular weight of 10,000 to 50,000, and 1 to 10 mol % of the repeating unit (I) in the main chain.The polycarbonate is excellent in all of flame retardance, impact resistance, and a thermostability at molding. Accordingly, the polycarbonate of the present invention is extensively and effectively used as various industrial materials such as home electric appliances, office automation devices, construction materials and the like.Type: GrantFiled: September 30, 1992Date of Patent: October 18, 1994Assignee: Idemitsu Petrochemical Co., Ltd.Inventor: Takashi Komatsu
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Patent number: 5304590Abstract: Process of mixing a fugitive plasticizer, e.g., ethylene carbonate, with moist particulate polyacrylonitrile then removing the water enabling adjustment of the melt viscosity for extrusion of the polyacrylonitrile into film, fiber, pellets and shaped articles. Stretching and heating the extruded polyacrylonitrile film or fiber causes the fugitive plasticizer to exude and vaporize from the film or fiber, carrying with it any remaining acrylonitrile monomer. The resulting film or fiber exhibits substantially increased molecular weight, thus enhancing the tensile strength and barrier properties of the polyacrylonitrile product. The process also produces polyacrylonitrile foam products. A novel cross-linking agent for polyacrylonitrile, divinyloxybutane, is disclosed. Thermostabilizing agents for polyacrylonitrile, N-maleimides and stilbene derivatives, are also disclosed.Type: GrantFiled: January 21, 1992Date of Patent: April 19, 1994Assignee: Solcas Polymer, Inc.Inventors: Edmund H. Merz, Roy A. White, John P. Fouser, Norman Fishman