Mercaptan, Mercaptide, Or Thioether, E.g., Aryl-sh, Etc. Patents (Class 524/750)
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Patent number: 8394891Abstract: The additive for a polymerizable composition according to the present invention contains a compound represented by the general formula (a). In the general formula (a), R represents a saturated hydrocarbon group having 1 to 3 carbon atoms. M represents Sn, Sb, Bi, or Ge. m represents 0 or 1. R and M are not directly bonded when m is 0. n represents an integer of 1 to 3. X represents a monovalent linking group, and a plurality of X may be the same as or different from each other. When two or more linking groups X are bonded with the metal atom M, the linking groups X may combine together to form a ring.Type: GrantFiled: December 11, 2008Date of Patent: March 12, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Tomoyuki Ando, Seiichi Kobayashi
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Patent number: 7977422Abstract: The addition of a surfactant containing a thio functionality of the formula-S—, and specifically a polyether thioether surfactant to a rubber formulation results in a rubber compound having a glossy film on the outer, exposed surface.Type: GrantFiled: August 11, 2004Date of Patent: July 12, 2011Inventors: Joseph Lanzarotta, Derek Donohue
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Publication number: 20100286334Abstract: The additive for a polymerizable composition according to the present invention contains a compound represented by the general formula (a). In the general formula (a), R represents a saturated hydrocarbon group having 1 to 3 carbon atoms. M represents Sn, Sb, Bi, or Ge. m represents 0 or 1. R and M are not directly bonded when m is 0. n represents an integer of 1 to 3. X represents a monovalent linking group, and a plurality of X may be the same as or different from each other. When two or more linking groups X are bonded with the metal atom M, the linking groups X may combine together to form a ring.Type: ApplicationFiled: December 11, 2008Publication date: November 11, 2010Applicant: Mitsui Chemicals, Inc.Inventors: Tomoyuki Ando, Seiichi Kobayashi
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Patent number: 7351754Abstract: A water-based ink comprising a colorant and a water-insoluble polymer having at least two hydroxyl groups at its end; a water-based ink comprising a water-insoluble polymer having an ionic group at its end and a pigment; and a process for preparing a water-based ink, comprising dissolving a water-insoluble polymer having an ionic group at its end or at least two hydroxyl groups at its end in an organic solvent; adding a pigment, water and a neutralizing agent, and optionally a surfactant to the resulting solution; kneading the mixture to form a paste; diluting the paste with water as occasion demands; and distilling off the organic solvent to make it into a water-based system. The water-based ink can be suitably used for printers for inkjet printing.Type: GrantFiled: June 25, 2003Date of Patent: April 1, 2008Assignee: Kao CorporationInventors: Yukihiro Nakano, Nobuyuki Takizawa
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Patent number: 7169845Abstract: In the present invention, an episulfide compound having, in one molecule, at least one epithio structure represented by the following Formula 2: wherein R5 is C1–C10 hydrocarbylene or single bond, R6, R7 and R8 are each independently C1–C10 hydrocarbyl or hydrogen, Y is O, S, Se or Te, p is an integer from 1 to 5 and q is an integer from 0 to 5, is polymerized in the presence of a halide of a 13–16 group element of the long periodic table and/or a polymerization regulator represented by the following Formula 1: wherein R1, R2 and R3 are each C1–C10 hydocarbyl or hydrogen, R4 is C1–C10 hydrocarbylene or single bond, X is F, Cl, Br, I, As, SH, OH, C1–C10 alkoxyl, C1–C10 alkylthio, or C1–C10 mercaptoalkythio, and m is an integer from 1 to 5, to produce a cured resin suitable as an optical material. By using the polymerization regulator, the polymerization rate of the episulfide compound can be suitably regulated to obtain a cured resin with less defect.Type: GrantFiled: April 4, 2002Date of Patent: January 30, 2007Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Masaki Tamura, Takahiro Matsui, Masanori Shimuta, Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi, Hiroyuki Okada
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Patent number: 6802939Abstract: A method of sizing paper by applying a composition comprising an aqueous dispersion of polymeric particles of particle size up to 1 micron, preferably 80-200 nm, wherein the polymeric particles comprise a water insoluble polymer matrix, preferably formed from styrene and 2-ethylhexyl acrylate, characterized in that an oligomer formed from a monomer blend comprising, (a) (meth)acrylamide, and (b) organic mercaptan or an organic sulphone, preferably dodecyl mercaptan or dodecyl sulphone is located at the surface of the particles. Compositions where the oligomer further comprises an ethylenically unsaturated monomer comprising either a tertiary amine group or a quaternary ammonium group, preferably dimethylaminoethylmethacrylate are novel. Advantages of the composition when applied to the surface of paper, include improved water resistance, brightness and printability properties of the treated paper.Type: GrantFiled: July 23, 2001Date of Patent: October 12, 2004Assignee: Ciba Specialty Chemicals Water Treatments LimitedInventors: Simon Donnelly, John Robert Stockwell, John Plonka
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Patent number: 6653380Abstract: The invention relates to a method of enhancing the tear resistance, tensile strength, and the aging properties of a latex product by adding an antioxidant synergist with an antioxidant to a latex compound comprising of a polymer, a stabilizing system, a film surface conditioner and a curing system comprised of an activator, crosslinker and accelerator and to the latex products formed therefrom. Antioxidant synergists which can be used with the present invention include 2-mercaptobenzimidazole (MBI), 2-mercaptotoluimidazole (MTI), zinc 2-mercaptobenzimidazole (ZMBI) and zinc 2-mercaptotoluimidazole (ZMTI). The latex products formed may be gloves but can also include threads, balloons and other latex-related products.Type: GrantFiled: July 18, 2001Date of Patent: November 25, 2003Assignee: R. T. Vanderbilt Company, Inc.Inventor: Robert Thomas Dzikowicz
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Patent number: 6635707Abstract: A synthetic latex is prepared by charging a portion of water and a monomer as raw materials in a reactor in a ratio of monomer/water, at which a maximum ultimate pressure in said reactor that is attained if an initial composition in said reactor before the initiation of the polymerization is polymerized from a polymerization initiation temperature in an insulated state, is within a practical proof pressure of said reactor; initiating the polymerization; adding dropwise the remainder of said water and said monomer during the polymerization, continuously or intermittently, and performing the emulsion polymerization. As a result, the emulsion polymerization can be stably performed while controlling the temperature and pressure in said reactor in a runaway reaction in all processes of the method of preparing the synthetic latex, thus making it possible to improve the productivity.Type: GrantFiled: February 27, 2001Date of Patent: October 21, 2003Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Akihiro Toritani, Masaki Sugihara, Hideaki Makino, Kouji Matsumura
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Patent number: 6528578Abstract: A golf ball comprising a core and a cover layer wherein the cover is formed of a polyurethane composition comprising a prepolymer comprising a saturated diisocyanate and a curing agent, and an optical brightener.Type: GrantFiled: September 19, 2001Date of Patent: March 4, 2003Assignee: Acushnet CompanyInventor: Shenshen Wu
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Patent number: 6472451Abstract: A UV-curable acrylate base adhesive composition for digital versatile discs and other substrates, a method for bonding verstile digital disc layers together with a UV-curable adhesive, and a digital versatile disc bonded by a UV-curable or a radiation curable adhesive. The adhesive comprises acrylate functional components, non-acrylate reactive diluents (e.g. having acrylamide, or N-vinyl functionality) and thiol compounds.Type: GrantFiled: August 24, 1999Date of Patent: October 29, 2002Assignee: DSM N.V.Inventors: Chau Thi Minh Ha, Vadim V Krongauz, Rajni Jaria, Michael G. Sullivan
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Patent number: 6455617Abstract: The invention concerns the use, for increasing the durability of moulds made of silicone elastomer crosslinkable by a poly addition or polycondensation reaction, of additive capable of stabilizing the silicone elastomer constituting the mold with respect to materials to be molded, of an additive selected among: (a) antioxidant additives comprising, in their structure additives containing at least one R—Sq—R′ group in which R and R′ are monovalent hydrocarbon groups with at least 3 carbon atoms or a monovalent hydrocarbon group with an ester bond or R and R′ together form a cycle, q being a whole number between 1 and 3 inclusively, (b) additives inhibitors of free radicals capable, in moulding conditions of generating radicals ═N—O; the invention concerns the synergistic combination of (a)+(b), the synergistic combination of (a) and/or (b) with phosphites (c), except for the use of bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate as only additive in a silicType: GrantFiled: June 23, 2000Date of Patent: September 24, 2002Assignee: Rhodia ChimieInventors: Michel Gay, Fabienne Howe, Christian Pusineri, Joëlle Viennet
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Patent number: 6252008Abstract: The invention relates to rubber blends containing said at least one solution-polymerized rubber containing hydroxyl groups, synthesized from diolefins and vinylaromatic monomers, wherein said at least one solution-polymerized rubber containing hydroxyl groups contain in the region of 0.1 to 5wt.% of bonded hydroxyl groups, to a process for their preparation and to their use for the production of all kinds of moldings.Type: GrantFiled: July 8, 1999Date of Patent: June 26, 2001Assignee: Bayer AktiengesellschaftInventors: Thomas Scholl, Ulrich Eisele, Jürgen Trimbach, Stefan Kelbch
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Patent number: 6191247Abstract: A polysiloxane composition comprising (A) a polysiloxane having a group represented by the formula (I): ≡Si—OR (I) wherein, R is a C1 to C18 substituted or unsubstituted monovalent hydrocarbon group or ether bond containing an organic group; and (B) at least 1 ppm of (a) a compound having an N, P, S, Sn, or As component or (b) an acetylene alcohol and a rubber composition containing the same. Specific polysiloxanes (A) contain both formula (I): ≡Si—OR as well as Si—H.Type: GrantFiled: April 4, 1997Date of Patent: February 20, 2001Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kazunori Ishikawa, Fumito Yatsuyanagi, Tetsuji Kawazura
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Patent number: 6013708Abstract: Compositions of precipitated cationic polymers containing mixtures of certain salts as well as processes for making and using the same are disclosed.Type: GrantFiled: October 3, 1996Date of Patent: January 11, 2000Assignee: Cytec Technology Corp.Inventors: Joseph J. Mallon, Raymond S. Farinato, Louis Rosati, John J. Freeman, Jr.
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Patent number: 5977249Abstract: The present invention relates to compositions which crosslink to give elastomers, comprising;(A) a polyorganosiloxane (I) with at least two alkenyl groups per molecule and a metallic catalyst (IV) and(B) a polyorganosiloxane (II) with at least two silicon-bonded hydrogen atoms and an organic sulfur compound (III).Type: GrantFiled: July 14, 1997Date of Patent: November 2, 1999Assignee: Wacker-Chemie GmbHInventors: Ingomar Kovar, Johann Kammerer, Klaus-Michael Matejcek, Erhard Bosch, Walter Strassberger
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Patent number: 5708064Abstract: Organic ophthalmic articles are photochromic and have high indices of refraction.Type: GrantFiled: October 13, 1994Date of Patent: January 13, 1998Assignee: PPG Industries, Inc.Inventors: Charles R. Coleman, Robert D. Herold, Christopher D. Selvig
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Patent number: 5703157Abstract: A process for preparing a copolymer latex comprising emulsion polymerizing an aliphatic conjugated diene monomer and other monomer copolymerizable therewith in the presence of a cyclic unsaturated hydrocarbon having one unsaturated bond in a ring, in which, preferably a monomer mixture which does not contain the aliphatic conjugated diene monomer is added after the addition of a monomer mixture containing the aliphatic conjugated diene monomer, or a part of a chain transfer agent is added after the addition of the monomers. This copolymer latex is useful as an adhesive composition, a paper coating composition, an adhesive composition for back-sizing carpets, an adhesive composition for rock fiber materials, a paper coating composition for gravure printing, and a color developing composition for a pressure sensitive copying paper.Type: GrantFiled: December 3, 1996Date of Patent: December 30, 1997Assignee: Sumitomo Dow LimitedInventors: Wataru Fujiwara, Junkoh Hyoda, Kenichi Yamazaki, Noriko Kitamura
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Patent number: 5648420Abstract: A process for preparing a copolymer latex comprising emulsion polymerizing an aliphatic conjugated diene monomer and other monomer copolymerizable therewith in the presence of a cyclic unsaturated hydrocarbon having one unsaturated bond in a ring, in which, preferably a monomer mixture which does not contain the aliphatic conjugated diene monomer is added after the addition of a monomer mixture containing the aliphatic conjugated diene monomer, or a part of a chain transfer agent is added after the addition of the monomers. This copolymer latex is useful as an adhesive composition, a paper coating composition, an adhesive composition for back-sizing carpets, an adhesive composition for rock fiber materials, a paper coating composition for gravure printing, and a color developing composition for a pressure sensitive copying paper.Type: GrantFiled: September 26, 1995Date of Patent: July 15, 1997Assignee: Sumitomo Dow LimitedInventors: Wataru Fujiwara, Junkoh Hyoda, Kenichi Yamazaki, Noriko Kitamura
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Patent number: 5486583Abstract: A mixture which is suitable as a defoamer, especially for ABS latices, comprising (A) a C.sub.10 -C.sub.20 alcohol, (B) a mineral oil, (C) an ester from a thiodicarboxylic acid with 4 to 8 carbon atoms and a C.sub.10 -C.sub.20 alcohol and (D) a non-ionic emulsifier and a process for removing residual monomers from ABS latices using these defoaming mixtures.Type: GrantFiled: December 7, 1994Date of Patent: January 23, 1996Assignee: Bayer AktiengesellschaftInventors: Herbert Eichenauer, Karl-Erwin Piejko, Hans-Jurgen Bunte, Hans-Jurgen Thiem
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Patent number: 5447978Abstract: A curable composition comprising as effect components:(A) 100 parts by weight of at least one member selected from the group consisting of a polyester, an ether ester block-copolymer, a vinyl polymer, a diallyl phthalate compound, a diallyl phthalate copolymer and an epoxy compound, said component (A) having in its molecule at least one silyl group represented by the formula (I): ##STR1## (B) 0.0001 to 50 parts by weight of an organotin compound, and (C) 0.1 to 20 parts by weight of a mercapto group-containing compound. The curable composition has well balanced pot life and curability and provides a cured product having an excellent appearance.Type: GrantFiled: October 14, 1993Date of Patent: September 5, 1995Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Naotami Ando, Hisao Furukawa, Yasushi Kato
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Patent number: 5391602Abstract: Radiation-cured pressure-sensitive adhesives are provided comprising a radiation cured polyurethane backbone capped with both an acrylic or methacrylic reactive terminating group and residues of a mono-ol or polyol non-reactive terminating group. The adhesives include a functional amount of a thio compound which provides for improved control in pressure-sensitive adhesive properties when the adhesive precursor is irradiated.Type: GrantFiled: November 30, 1993Date of Patent: February 21, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventor: Martin Skoultchi
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Patent number: 5354800Abstract: There is disclosed a method of producing copolymer latices which are useful as binders in paper coating compositions capable of providing coated papers with good and balanced physical characteristics, including adhesive strength, water resistance, ink acceptability and sheet gloss and which can further be used as carpet backing agents and as adhesives.Type: GrantFiled: October 28, 1992Date of Patent: October 11, 1994Assignee: Takeda Chemical Industries, Ltd.Inventors: Shigeo Suzuki, Susumu Abe, Fuyuo Maeda, Tomotaka Seo
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Patent number: 5284908Abstract: A copolymer latex which is useful in an adhesive composition, a paper coating composition, an adhesive composition for carpet lining and an adhesive composition for a rock fiber substrate is prepared by emulsion copolymerizing an aliphatic conjugated diene monomer and at least one other monomer copolymerizable therewith in the presence of a chain transfer agent and at least one compound having no copolymerizing reactivity selected from the group consisting of hydrocarbons having 5 to 12 carbon atoms, halogenated aromatic hydrocarbons, five or six membered ring heterocyclic compounds, aliphatic ethers and aliphatic esters in an amount of 1 to 100 parts by weight per 100 parts by weight of a total amounts of the aliphatic conjugated diene monomer and the other monomer.Type: GrantFiled: January 29, 1991Date of Patent: February 8, 1994Assignee: Sumitomo Dow LimitedInventors: Wataru Fujiwara, Junko Hyoda, Yasushi Toyoda, Saburo Mishiba
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Patent number: 5281635Abstract: A homogeneous composition for forming on firing a film of precious metal, which is one or more of platinum, palladium, gold and silver, on a substrate, for instance to decorate table ware, comprises polymeric resin and a solution, in water and a co-solvent, of thiolate of the precious metal, the composition containing 3-22% by weight of the precious metal as the thiolate, and the co-solvent, resin and thiolate being such that as the composition on a substrate dries and is progressively heated in firing, the water evaporates off to leave a homogeneous composition of the resin and thiolate in the co-solvent, then the co-solvent evaporates off to leave a homogeneous composition of the thiolate in the resin, and then the thiolate decomposes to the precious metal while the resin volatilise.Type: GrantFiled: April 29, 1992Date of Patent: January 25, 1994Assignee: Johnson Matthey Public Limited CompanyInventor: Peter T. Bishop
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Patent number: 5166271Abstract: A heat resistant polyvinyl chloride copolymer or a heat and impact resistant polyvinyl chloride copolymer is prepared by conducting graft copolymerization of N-substituted maleimide on a vinyl chloride resin or a rubber containing vinyl chloride resin.The graft copolymerization reaction is carried out in the presence of a radical polymerizable monomer which is (1) liquid at the polymerization temperature, (2) capable of dissolving the N-substituted maleimide at the temperature, (3) 70.degree. C. or more in glass transition temperature of the polymer thereof, and (4) used in an amount sufficient to dissolve the N-substituted maleimide.Type: GrantFiled: September 1, 1989Date of Patent: November 24, 1992Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Seiichi Masuko, Hideaki Takahara, Akira Yamamoto
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Patent number: 5141988Abstract: An improved blister resistant paper coating polymer latex for paper coating comprising an aliphatic conjugated diene monomer, monoethylenic monomers and an ethylenically unsaturated carboxylic acid monomer and including a molecular weight modifier such as an organosulfur compound and a base.Type: GrantFiled: August 10, 1990Date of Patent: August 25, 1992Assignee: Reichhold Chemicals, Inc.Inventors: David W. Suwala, Emil G. Sammak
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Patent number: 5073592Abstract: The present invention relates to a process for preparing a rubber containing polymer bound antidegradants. The process comprises the aqueous emulsion polymerization of (a) at least one functionalized monomer that contains an antidegradant moiety and a polymerizable vinyl group; with (b) at least one copolymerizable conjugated diene monomer, wherein the polymerization is conducted in the presence of from about 1 to about 70 parts by weight of an ester based on 100 parts by weight of total monomers. The ester functions as a synergist for the antidegradant, as a cosolvent/dispersing agent for the antidegradant during emulsion polymerization and as a plasticizer for the final polymer product.Type: GrantFiled: August 2, 1990Date of Patent: December 17, 1991Assignee: The Goodyear Tire & Rubber CompanyInventors: Gerald O. Schulz, Dane K. Parker
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Patent number: 4950711Abstract: An improved blister resistant paper coating polymer latex comprising an aliphatic conjugated diene monomer, a monoolefinic monomer and an ethylenically unsaturated carboxylic acid monomer and including a molecular weight modifier such as an organosulfur compound and a soluble salt of a nonpolymerizable organic acid.Type: GrantFiled: July 19, 1989Date of Patent: August 21, 1990Assignee: Reichhold Chemicals, Inc.Inventors: David W. Suwala, Igor B. Aksman
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Patent number: 4661531Abstract: Graft polymer dispersions in a polyol are prepared by a continuous process employing in situ free radical polymerization of an ethylenically unsaturated monomer in a polyol containing from about 0.001 to 0.09 mole of induced unsaturation per mole of polyol in the presence of an effective amount of a chain transfer agent. Products prepared by this process have uniform viscosity with resulting product uniformity. Polyurethane foams incorporating flame retardants prepared from these dispersions readily pass the California No. 117 Flame Test.Type: GrantFiled: April 10, 1985Date of Patent: April 28, 1987Assignee: BASF CorporationInventors: John E. Davis, Duane A. Heyman
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Patent number: 4656199Abstract: The present invention is directed to a process for the production of matte, non-blocking, thin-walled molded articles, films or tubes from polyurethane elastomers prepared from high molecular weight polyols which contain dispersed polyadducts based on polyisocyanate polyaddition products. The use of these high molecular weight polyols contained dispersed polyadducts allows for the preparation of thin-walled, molded articles which have reduced surface tackiness. The present invention is additionally directed to the molded articles produced by this process and to their use for forming polyurethane foam composites.Type: GrantFiled: January 30, 1986Date of Patent: April 7, 1987Assignee: Bayer AktiengesellschaftInventors: Georg Niederdellmann, Wilhelm Goyert, Bernd Quiring, Hans Wagner
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Patent number: 4596836Abstract: Polyurethane can be made having improved heat stability, sufficient to withstand paint oven temperatures by mixing or dispersing about 0.5 to 10 parts or more of an organic monosulfide or disulfides, preferably where the organo radical is a hydroxyl phenyl or hydroxyl alkyl substituted phenyl radical per 100 parts of the polyurethane reactants and reacting to form the polyurethane.Type: GrantFiled: January 14, 1985Date of Patent: June 24, 1986Assignee: The Goodyear Tire & Rubber CompanyInventors: Michael E. Kimball, Richard E. Fruzzetti
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Patent number: 4585829Abstract: A method of imparting internal mold release properties to reaction injection molding polyurethane compositions by the addition of a perfluoroalkylorganocarboxylic acid or a salt thereof. This invention also relates to the production of novel perfluoroalkylorganodibutyltindioxide compounds which are inherently catalytic and can also impart the property of internal mold releasability to RIM compositions.Type: GrantFiled: May 29, 1984Date of Patent: April 29, 1986Assignee: Union Carbide CorporationInventors: An-Li Kuo, Errol D. Goddard, James S. Ritscher
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Patent number: 4574137Abstract: Copolymer polyols are prepared by polymerizing an ethylenically unsaturated monomer in a polyahl mixture in the presence of iodine or an iodine-releasing inorganic compound. The use of the iodine or iodine-releasing inorganic compound provides a lower viscosity, more stable copolymer polyahl.Type: GrantFiled: August 23, 1984Date of Patent: March 4, 1986Assignee: The Dow Chemical CompanyInventors: John F. Serratelli, Michael A. Norton
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Patent number: 4459384Abstract: Described herein is a process for preparing a polyester or a poly(ester carbonate) which comprises reacting a dihydric phenol with an aromatic diacid and a diaryl carbonate in the presence of from about 10 to about 60 weight percent of a processing aid under polyester or poly(ester carbonate) forming conditions.Type: GrantFiled: April 18, 1983Date of Patent: July 10, 1984Assignee: Union Carbide CorporationInventors: Markus Matzner, Louis M. Maresca
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Patent number: 4447576Abstract: Paintable, cured polyorganosiloxane sealants are prepared at room temperature from room temperature curable compositions containing a hydroxyl-terminated polyorganosiloxane, an organosilicon compound containing at least two amido groups, aminoxy groups or combinations thereof, per molecule and a substituted alcohol where the substituent is acyloxy, alkoxycarbonyl, cyano, ##STR1## mercapto, or the combination of a carbon-to-carbon triple bond and an ether-type oxygen atom, where each Y and Z are individually selected from the group consisting of hydrogen, hydrocarbyl and halohydrocarbyl.Type: GrantFiled: June 7, 1983Date of Patent: May 8, 1984Assignee: Toray Silicone Company, Ltd.Inventors: Miyoji Fukayama, Chikara Ichiijo
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Patent number: 4445959Abstract: A process for the production of synthetic rubber latices by the emulsion polymerization of a monomer mixture of:40 to 80 parts by weight of a conjugated diene;0 to 45 parts by weight of an aromatic vinyl compound;0 to 30 parts by weight of (meth)acrylonitrile0 to 30 parts by weight of a (meth)acrylic acid ester containing from 1 to 12 carbon atoms in the alcohol component or other copolymerizable compounds, and0.5 to 5.0 parts by weight of an .alpha., .beta.-unsaturated mopnocarboxylic or dicarboxylic acid,the sum of the monomer compounds amounting to 100 parts by weight, characterized in that from 0.5 to 2.0 parts by weight of a chain transfer agent are used per 100 parts by weight of monomer. Said latices can be used for producing pressure-sensitive adhesives.Type: GrantFiled: May 14, 1982Date of Patent: May 1, 1984Assignee: Bayer AktiengesellschaftInventors: Rudolf Hombach, Wilfried Nolte, Peter J. Russell, Nigel G. Wall
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Patent number: 4425469Abstract: A water soluble, vinyl addition polymer of acrylamide comprising a hydrophobic terminal group is useful as an adsorbate and as a flow modifier in aqueous systems. The polymer is particularly useful as a thickening agent or rheology modifier for water based multiphase systems, a block improvement additive in water based coatings formulations, a stabilizer for aqueous emulsions (including polymer emulsions), a transfer aid in water based ink or roll coater formulations, a surfactant and a dispersant. The disclosure also comprises a solution polymerization method of preparing the polymer.Type: GrantFiled: September 8, 1980Date of Patent: January 10, 1984Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Travis E. Stevens