Si-h Or Si-c Reactant Contains An Atom Other Than C, H, O, Or Si Bonded To A Carbon Atom Patents (Class 525/102)
  • Patent number: 4780358
    Abstract: A polyamide adhesive composition comprising 100 parts by weight of a polymer component and 0.1 to 5 parts by weight of an aminosilane compound. The polymer component comprises 50 to 99.5% by weight of a polyamide and 0.5 to 50% by weight of a modified polyolefin formed by grafting a polyolefin with an unsaturated compound having a polar group in the molecule and/or a polymer other than polyamides, having a polar group or an aromatic group and a tensile modulus not higher than 2,000 kg/cm.sup.2.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: October 25, 1988
    Assignee: Ube Industries, Ltd.
    Inventors: Bunsaku Ito, Kimio Fukuda, Rikio Hara
  • Patent number: 4774278
    Abstract: An improved coating composition is proposed which comprises a conventional resin component for coating admixed with a silicone resin in combination with an organopolysiloxane having specified substituent groups in an object of forming non-skid coating films imparted with non-blocking property at the same time.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: September 27, 1988
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroshi Yoshioka, Ichiro Ono, Hideki Sugahara
  • Patent number: 4758624
    Abstract: Silane-crosslinkable halogenated polymer composition and process of crosslinking the same.The silane-crosslinkable halogenated polymer composition contains a mixture including: 100 parts by weight of a halogenated polymer and about 0.1-20 parts by weight of an amino group-containing organic silane compound. The halogenated polymer composition silane-crosslinked is useful for the sheath and insulation of electric wires and cables and other moldings such as a hose.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: July 19, 1988
    Assignee: Fujikura Ltd.
    Inventors: Isamu Sekiguchi, Hideo Sunazuka, Hirotada Kobayashi, Yasusada Sekiguchi
  • Patent number: 4746702
    Abstract: An organosiliconic fluid composition, suitable for use in sealants, formed by a liquid phase and by a solid and insoluble polymeric phase, dispersed in said liquid phase, is obtained by polymerizing, under the influence of free-radical initiators, styrene, or a mixture of styrene with at least one other vinyl-containing monomer, the polymerization being carried out in the presence of a liquid polyoxypropylenediol-.alpha.,.omega.-bis-allyl silylate having formula (I): ##STR1## or in the presence of a liquid polycarbonate of polyoxypropylenediol-.alpha.,.omega.-bis-allyl silylate having formula (II): ##STR2## wherein: R is an alkyl radical,X is a hydrolyzable radical selected from alkoxy, aminooxy and acyloxy radicals,y is 0, 1 or 2,p is a number ranging from about 10 to about 100,m and n are numbers such as to give to compounds (I) and (II) a molecular weight value, or an average molecular weight value, of from 2000 to 20,000.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: May 24, 1988
    Assignee: Enichem Sintesi S.p.A.
    Inventors: Alberto Greco, Gabriele Lugli
  • Patent number: 4739013
    Abstract: Polyurethanes are provided which have a polymeric backbone including recurring urethane or urea groups or both and which are reaction products including macroglycols, diisocyanates, and preferably chain extending agents. The polyurethanes may take the form of poly(fluorosilicone urethanes) and include recurring organosilicone moieties from a fluoroalkylsiloxane reactant. When it is desired that these polyurethanes be capable of forming fibers in air, then the reactant charge should be such that the ratio of isocyanate equivalents to hydroxyl equivalents is less than 1.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: April 19, 1988
    Assignee: Corvita Corporation
    Inventor: Leonard Pinchuk
  • Patent number: 4735829
    Abstract: A process for preparing a pressure sensitive adhesive comprising:(A) an organic polymer having in its molecule at least one reactive silicon-containing group represented by the formula (I): ##STR1## wherein R.sup.2 is a monovalent hydrocarbon group having 1 to 20 carbon atoms or a triorganosiloxy group having the formula (II):(R').sub.3 SiO-- (II)in which R' is a monovalent hydrocarbon group having 1 to 20 carbon atoms and may be the same or different, X is hydroxyl group or a hydrolyzable group, and may be the same or different when 2 or more X groups are attached, a is 0 or an integer of 1 to 3, b is 0, 1 or 2, and m is 0 or an integer of 1 to 18, and(B) 0.1 to 20 parts by weight of, per 100 parts by weight of the organic polymer, at least one curing catalyst selected from the group consisting of an organic aluminium and an organic zirconium. The composition has excellent heat resistance and releasability from substrates, e.g. a release paper coated with a silicone release agent.
    Type: Grant
    Filed: March 10, 1987
    Date of Patent: April 5, 1988
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshifumi Hirose, Katsuhiko Isayama
  • Patent number: 4714733
    Abstract: The rubber composition is formulated with (A) a combination of an ethylene-propylene copolymeric rubber and an organopolysiloxane having at least two alkenyl groups per molecule as the polymeric base, (B) a reinforcing silica filler, (C) an alkoxysilane compound and (D) a thiocarbamyl-containing organosilane compound. The rubber composition can be vulcanized with an organic sulfur compound or organic peroxide as the vulcanizing agent to give a vulcanizate having quite satisfactory mechanical properties including, in particular, greatly improved heat resistance and greatly decreased permanent compression set even without using carbon black as the reinforcing filler. The omission of carbon black in the formulation gives an advantage that the rubber may be colored in any light color.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: December 22, 1987
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kunio Itoh, Takeshi Fukuda, Hiroshi Yoshioka
  • Patent number: 4707515
    Abstract: The specification is concerned with sealant compositions comprising prepolymers which are capable of being cured by atmospheric moisture. The compositions provide a desirable blend of properties with regard to application and use, using prepolymers derived from comparatively inexpensive raw materials. The prepolymers correspond to a reaction product of an at least substantially linear acrylate ester polymer having a Tg of not greater than 10.degree. C. with a hydrolysable silane having a saturated organo-functional group, the reaction product being a fluid material soluble in organic solvents and curable by exposure to atmospheric moisture to a resilient solid. The prepolymer is a silane-modified polymer which preferably has from 2 to 3 hydrolysable silane groups per molecule of prepolymer and from 1 to 3 hydrolysable groups per silane group.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: November 17, 1987
    Assignee: USM Corporation
    Inventors: Heinz G. Gilch, Wolfgang Haar
  • Patent number: 4670500
    Abstract: A surface coating composition comprising an amino-functional silicone polymer, a metal chelated acrylic polymer a hydrocarbon solvent and water. The metal-chelated acrylic polymer preferably comprises zinc, and the composition may further comprise abrasive materials, surfactants, thickeners and stabilizers. The surface coating composition is particularly adapted for providing a glossy and durable finish on a surface.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: June 2, 1987
    Assignee: Pennzoil Company
    Inventor: D. V. Satyanarayana Gupta
  • Patent number: 4666981
    Abstract: A resin composition which comprises a coupling agent in an amount of about 0.5 part by weight to about 50 parts by weight against 100 parts by weight of a copolymer composed of an aminoalkyl acrylate and/or aminoalkyl methacrylate and an ethylenically unsaturated monomer.The resin composition excels, as compared with the conventional ones, in terms of any properties to be developed toward a wide range of various substrates inclusive of inorganic materials and plastic materials, such as adherence, water resistance, weathering resistance and yellowing resistance, and consequently are advantageously used in such fields as coatings, adhesives and printing ink.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: May 19, 1987
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Fumihiro Doura, Kazuo Asada, Kouichi Inoue
  • Patent number: 4665127
    Abstract: A pressure sensitive adhesive composition comprising:(A) an organic polymer having in its molecule at least one reactive silicon-containing group represented by the formula (I): ##STR1## wherein R.sup.2 is a monovalent hydrocarbon group having 1 to 20 carbon atoms or a triorganosiloxy group having the formula (II):(R').sub.3 SiO-- (II)in which R' is a monovalent hydrocarbon group having 1 to 20 carbon atoms and may be the same or different, X is hydroxyl group or a hydrolyzable group, and may be the same or different when 2 or more X groups are attached, a is O or an integer of 1 to 3, b is 0, 1 or 2, and m is O or an integer of 1 to 18, and(B) 0.1 to 20 parts by weight of, per 100 parts by weight of the organic polymer, at least one curing catalyst selected from the group consisting of an organic aluminum and an organic zirconium. The composition has excellent heat resistance and releasability from substrates, e.g. a release paper coated with a silicone release agent.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: May 12, 1987
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshifumi Hirose, Katsuhiko Isayama
  • Patent number: 4619970
    Abstract: A chromatographic resolving agent made of silica gel chemically bonded with an optically active polymer having either an asymmetric carbon atom in the main chain or molecular dissymmetry causing a helical structure of the main chain thereof.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: October 28, 1986
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Yoshio Okamoto, Koichi Hatada
  • Patent number: 4615882
    Abstract: An aqueous anti-microbial disinfectant solution for contact lenses contains an effective amount of an active ingredient which is an anti-microbial, organosilicon quaternary ammonium salt chemically bonded to a water soluble, high molecular weight organic polymer. The solution is non-toxic and non-irritating to the eye, and does not adsorb or penetrate into a contact lens.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: October 7, 1986
    Inventor: Richard F. Stockel
  • Patent number: 4600436
    Abstract: Aminofunctional emulsions and aminofunctional silicone polishes are provided which exhibit improved adhesion and resistance to removal by detergent washing when applied to solid surfaces.
    Type: Grant
    Filed: May 22, 1984
    Date of Patent: July 15, 1986
    Assignee: General Electric Company
    Inventors: Frank J. Traver, Raymond J. Thimineur, Anthony A. Zotto
  • Patent number: 4593068
    Abstract: A curing composition which comprises (A) a polyether having at least one reactive silicon-containing group in the molecule and (B) an acrylate polymer and/or an methacrylate polymer. The composition of the present invention has excellent weatherability, adhesive property, initial tackiness, especially at a low temperature, cohesive force, workability and stickness and is useful as a pressure sensitive adhesive, a sealing material, and the like.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: June 3, 1986
    Assignee: Kanegafushi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshifumi Hirose, Katsuhiko Isayama
  • Patent number: 4584341
    Abstract: This invention is a method of producing a latex of crosslinked polydiorganosiloxane. The latex yields an elastomer upon removal of the water. The latex is prepared by homogenizing a mixture of hydroxyl endblocked polydiorganosiloxane, less than 75 millimoles of surface active anionic catalyst per kilogram of polydiorganosiloxane where said surface active anionic catalyst is dodecylbenzene sulfonic acid or hydrogen lauryl sulfate, and water to yield an oil-in-water emulsion. This emulsion is then admixed with from 0.5 to 15 parts by weight of an alkoxy silicon compound selected from a silane of the formula R.sub.a 'Si(OR.sup.3).sub.4-a where R' is a monovalent hydrocarbon radical of up to 12 carbon atoms, R.sup.3 is an alkyl radical of 1 to 6 carbon atoms, and a is 0 or 1, a partial hydrolyzate of the silane, or mixtures of silane and partial hydrolyzate. The resulting emulsion is maintained at a temperature of about 15.degree. to 30.degree. C.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: April 22, 1986
    Assignee: Dow Corning Corporation
    Inventors: David J. Huebner, John C. Saam
  • Patent number: 4575535
    Abstract: Water-curable silane modified alkylene-alkyl acrylate copolymers, produced by reacting an alkylene-alkyl acrylate copolymer with a polysiloxane in the presence of an organo titanate, which are useful as extrudates about wires and cables.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: March 11, 1986
    Assignee: Union Carbide Corporation
    Inventor: Michael J. Keogh
  • Patent number: 4568718
    Abstract: This invention is a method of producing an aqueous latex of crosslinked polydiorganosiloxane. The latex yields an elastomer upon removal of the water. The latex is prepared by homogenizing a mixture of hydroxyl endblocked polydiorganosiloxane; a silane of the formula R.sub.a 'Si(OR.sup.3).sub.4-a where R' is a monovalent hydrocarbon radical of up to 12 carbon atoms, R.sup.3 is an alkyl radical of 1 to 6 carbon atoms, a partial hydrolyzate, or mixture of silane and hydrolyzate, and a is 0 or 1; a surface active anionic catalyst of the formulae R.sup.2 C.sub.6 H.sub.4 SO.sub.3 H wherein R.sup.2 is a monovalent hydrocarbon radical of at least 6 carbon atoms, R.sup.2 OSO.sub.2 OH, or ##STR1## wherein R.sup.4 is H or R.sup.2 ; and water. The resulting emulsion is maintained at a temperature of 15.degree. to 30.degree. C. for at least 5 hours at a pH of less than 5 until a crosslinked polymer is formed, then this emulsion is admixed with base to a pH of greater than 7.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: February 4, 1986
    Assignee: Dow Corning Corporation
    Inventors: David J. Huebner, John C. Saam
  • Patent number: 4567231
    Abstract: This invention is a method of producing a latex of crosslinked polydiorganosiloxane reinforced with colloidal silica. The method allows the production of a latex having a relatively high amount of silica present in relation to the polymer because the water used to form the emulsion can be that present in the acidic colloidal silica sol used in the method. The high solids latex can be useful as a caulking material. The method homogenizes a hydroxyl endblocked polydiorganosiloxane, a silane of the formula R'.sub.a Si(OR.sup.3).sub.4-a where R' is a monovalent hydrocarbon radical of up to 12 carbon atoms, R.sup.3 is an alkyl radical of 1 to 6 carbon atoms, a partial hydrolyzate, or mixture of silane and hydrolyzate, and a is 0 or 1; a surface active anionic catalyst of the formulae R.sup.2 C.sub.6 H.sub.4 SO.sub.3 H wherein R.sup.2 is a monovalent hydrocarbon radical of at least 6 carbon atoms, R.sup.2 OSO.sub.2 OH, or ##STR1## wherein R.sup.4 is H or R.sup.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: January 28, 1986
    Assignee: Dow Corning Corporation
    Inventors: David J. Huebner, John C. Saam
  • Patent number: 4559387
    Abstract: A primer composition comprising(A) 100 parts by weight of a silane-modified resin obtained by reacting a resin formed by introducing an epoxy group and a hydroxyl group (which may be partially esterified) into a polymer comprising 1,3-pentadiene as a main monomer and having an iodine value of 200 to 500 and an average molecular weight of 350 to 10,000 with a carbon-functional silane,(B) 40 to 600 parts by weight of a mercapto group-containing silane represented by the general formula:HS(CH.sub.2).sub.a Si--OR.sup.1).sub.3wherein a is an integer equal to 2 or 3, and R.sup.1 is an alkyl group having 1 to 4 carbon atoms,(C) 10 to 400 parts by weight of an amino group-containing silane represented by the general formula ##STR1## where X stands for a substituted or unsubstituted amino group selected from the group consisting of:--N(R.sup.3).sub.2,--NH(CH.sub.2).sub.2 N(R.sup.3).sub.2 and--NH(CH.sub.2).sub.2 NH(CH.sub.2).sub.2 N(R.sup.3).sub.2,b is an integer equal to 3 or 4, c is an integer equal to 0 or 1, R.sup.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: December 17, 1985
    Assignee: Toshiba Silicone Co., Ltd.
    Inventors: Isao Endo, Joji Kuniya
  • Patent number: 4517336
    Abstract: Mouldable and vulcanisable rubber mixtures are made containing a rubber (A) which still contains double bonds and which is cross-linkable by means of sulphur and a vulcanization accelerator or a mixture of rubber (A) with a different rubber (B), 0.2 to 10 parts of sulphur, 0.2 to 10 parts of a vulcanization accelerator and 1.0 to 10 parts of a bis-(alkoxysilylalkyl)polysulfide.There can also be present a silicate filler and/or a carbon black filler of rubber. The rubber mixtures have the silane, vulcanization accelerator and sulphur, calculated as S.sub.8 present in a molar ratio which causes the rubber mixture to have a reversion R=O (.+-.5%) resulting from the cross-linking isotherm at the vulcanization temperature where the reversion R is calculated according to Formula II ##EQU1## in which D.sub.max is the maximum vulcameter moment of rotationD.sub.min is the minimum vulcameter moment of rotationD.sub.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: May 14, 1985
    Assignee: Degussa Aktiengesellschaft
    Inventors: Siegfried Wolff, Ewe-Hong Tan
  • Patent number: 4493924
    Abstract: Water-curable, silane modified chlorosulfonated olefinic polymers, particularly desirable for use as coverings about wires and cables, produced by reacting a mixture containing a chlorosulfonated olefinic polymer and a hydrolyzable silane having cyclic oxygen, sulfur or nitrogen functionality.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: January 15, 1985
    Assignee: Union Carbide Corporation
    Inventor: Mahmoud R. Rifi
  • Patent number: 4491650
    Abstract: What are disclosed are a poly(meth)acrylate polymer having pendant hydrolyzable alkoxysilane groups thereon prepared by reacting a poly(meth)acrylate polymer having pendant hydroxy groups thereon with an isocyanato functional alkoxysilane having 1 to 3 hydrolyzable lower alkoxy groups present on the silicon atom thereof; a substrate such as glass or aluminum having a tenacious coating thereon of such a polymer alone or in admixture with another, different, resinous binder component; such a substrate further having a resinous sealant composition applied over said tenacious coating as a primer; and methods for making such a polymer and such coated substrates.
    Type: Grant
    Filed: May 5, 1982
    Date of Patent: January 1, 1985
    Assignee: Essex Specialty Products, Inc.
    Inventors: Sidky D. Rizk, Harry W. S. Hsieh, Michael P. Mazzeo
  • Patent number: 4472464
    Abstract: The invention disclosed in this application is the use of novel silanes in curable coatings to allow tinting or dyeing of the coatings after they are cured on certain substrates.An example of one such useful silane is ##STR1## The silanes and the curable coatings are also useful as antistat and antifog coatings.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: September 18, 1984
    Assignee: Dow Corning Corporation
    Inventors: Loren A. Haluska, Marcelle G. Molzahn
  • Patent number: 4468492
    Abstract: A low temperature curing composition prepared from an essentially silicon-free polymer and a silicon group-containing material is improved by utilizing a silicon group-containing material which is a hydrolyzable organosilicon group-containing polymer which is non-gelled and formed from an essentially silicon-free polymer having isocyanate or active hydrogen functional groups and an organosilicon group-containing material having functional groups reactive with the isocyanate and active hydrogen.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: August 28, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Robert Piccirilli, Wen-Hsuan Chang
  • Patent number: 4463129
    Abstract: Rubbery polymer compositions, e.g. based on chlorobutyl rubber, having improved adhesion to mineral substrates such as glass or metal, are produced by a stepwise reaction sequence. In a first stage the rubbery polymer is reacted with a reactive silane such as an amino trialkoxy silane, in a second stage the product is mixed with an epoxy resin, and in a third stage a further amount of reactive silane is reacted with the epoxy containing compound.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: July 31, 1984
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yasukavu Shinada, Daniel E. Nerinckx
  • Patent number: 4450263
    Abstract: A fluoropolymer gum of 60 to 85 mol percent vinylidene fluoride, 10 to 40 mol percent of hexafluoropropene and 0.15 to 3 mol percent 1-bromo-2,2-difluoroethylene is provided which can be blended with fluorosilicone gum and vulcanized in presence of free-radical initiators to produce elastomeric vulcanizates with desired balance of chemical solvent or fluid resistance, high temperature stability, and low temperature flexibility, coupled with good physical properties such as high tensile strength and elongation.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: May 22, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Arthur C. West
  • Patent number: 4426490
    Abstract: A method of polymerizing silanol-containing organosilicon compounds is provided. Catalysts comprising dioctyl tin dineodeconate lend a unique combination of properties to curable silicone paper release coatings including long bath life, storage stability, low odor, reactivity over a wide temperature range and low release.
    Type: Grant
    Filed: March 10, 1982
    Date of Patent: January 17, 1984
    Assignee: General Electric Co.
    Inventors: Anthony J. Dallavia, Jr., Gordon T. Van Vleck, Frank J. Traver
  • Patent number: 4421893
    Abstract: The invention disclosed in this application is the use of novel silanes in curable coatings to allow tinting or dyeing of the coatings after they are cured on certain substrates.An example of one such useful silane is ##STR1## The silanes and the curable coatings are also useful as antistat and antifog coatings.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: December 20, 1983
    Assignee: Dow Corning Corporation
    Inventors: Loren A. Haluska, Marcelle G. Molzahn
  • Patent number: 4405754
    Abstract: Haze-free, clear, impact-resistant resinous copolymers are produced by coupling polymer-lithium with a mixture of coupling agents wherein one is a lactone such as butyrolactone and the other is a halo-silane such as phenyltrichlorosilane. The combination of coupling agents reduces haze, yet maintains clarity and impact resistance of the resulting coupled polymer.
    Type: Grant
    Filed: January 13, 1982
    Date of Patent: September 20, 1983
    Assignee: Phillips Petroleum Company
    Inventors: George A. Moczygemba, Kishore Udipi
  • Patent number: 4404349
    Abstract: The disclosure of this application is directed to a polysiloxane, having combined therein an organo titanate, which can be used in the production of silane modified alkylene-alkyl acrylate copolymers. The silane modified copolymers can be extruded about electrical conductors to provide insulation thereon characterized by improved surface characteristics.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: September 13, 1983
    Assignee: Union Carbide Corporation
    Inventor: Michael J. Keogh
  • Patent number: 4389432
    Abstract: The invention provides a novel means for solving the problem of poor adhesion between the surface of a substrate of a metal or a plastic resin, e.g. polycarbonate resin, and a cured coating film of an organopolysiloxane formed thereon to impart good surface properties, e.g. hardness and weathering resistance, to the substrate surface by use of an adhesion improver as a primer which comprises a copolymer of an organosilicon compound having a hydrolyzable group and an ethylenic unsaturation in the molecule, glycidyl methacrylate and an organic monomer, e.g. methyl methacrylate and vinyl acetate, a reaction product of an aminoalkyl-containing organosilane compound and an acid anhydride and, optionally, an ultra-violet light absorber in a limited proportion.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: June 21, 1983
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshio Inoue, Hisashi Shimizu
  • Patent number: 4386170
    Abstract: The resistance of a fluorinated silicone elastomer to the effects of exposure to hot fuel, hot oil, and elevated temperature has been improved by the addition of from 0.8 to 5 parts by weight of polytetrafluoroethylene powder to a curable fluorinated silicone elastomeric composition, consisting essentially of a fluorinated polydiorganosiloxane gum having from 45 to 50 percent of the organic radicals being 2-(perfluoroalkyl)ethyl radicals, from 50 to 55 percent of the organic radicals being monovalent hydrocarbon radicals with from 0.1 to 1 percent of the monovalent hydrocarbon radicals being aliphatic unsaturated radicals, and a treated reinforcing silica filler. The resistance is further improved by also including an alkaline earth metal oxide or hydroxide acid acceptor.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: May 31, 1983
    Assignee: Dow Corning Corporation
    Inventor: Carl M. Monroe
  • Patent number: 4384132
    Abstract: Novel bis-(silylethyl)-oligosulphides are obtained by reacting a vinyl silane of the formula (CH.sub.2 .dbd.CH).sub.m -- SiR.sub.n.sup.1 R.sub.4 -(m+n) in which R represents chlorine, bromine, iodine, C.sub.1 -C.sub.3 -alkoxy, 2-methoxyethoxy, 2-ethoxyethoxy or hydroxy, R.sup.1 represents C.sub.1 -C.sub.3 -alkyl, phenyl or C.sub.5 -C.sub.7 -cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m+n is 1, 2 or 3 with sulphur as well as in a given case hydrogen sulphide in molar ratios of vinyl silane to sulphur of from 1:2.5 to 1:10 and vinyl silane to hydrogen sulphide of from 1:0 to 1:5 at temperatures between about 100.degree. and 200.degree. C. under pressure of from 1 to 25 bars (total pressure at the reaction temperature) and in the presence of sulphidation catalysts known per se, in a given case followed by hydrolysis or partial hydrolysis of the reaction products.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: May 17, 1983
    Assignee: Degussa Aktiengesellschaft
    Inventors: Rudolf Schwarz, Peter Kleinschmit, Christa Liedtke, Siegfried Wolff
  • Patent number: 4377675
    Abstract: Aqueous metal ammine siliconate solutions are the reaction products of selected metals or metal derivatives, selected mono-organosilicon materials, certain alkaline nitrogen compounds having the formula R--NH.sub.2, and water. Amorphous materials are formed when volatiles are removed from the siliconate solutions. The metal components in the resulting amorphous materials are not readily leached out by normal weathering, washing or the like. The solutions are useful in a method for treating substrates, such as wood, textiles, thread, canvas, carpeting, paper and masonry, to confer antimicrobial properties. The organosilicon component can be selected so that such treatments also confer either hydrophobic or hydrophilic properties to the substrates. The components of the solutions can be selected to enhance their ability to form continuous films of amorphous materials when used in such treatments, making the solutions useful to provide antimicrobial coatings which may be either hydrophobic or hydrophilic.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: March 22, 1983
    Assignee: Dow Corning Corporation
    Inventors: William H. Daudt, Cecil L. Frye, James F. Hyde
  • Patent number: 4369232
    Abstract: Dispersants which improve the gloss of acrylic paints are prepared by reacting the isocyanate groups of monomeric polyisocyanates or isocyanate acrylate polymers with (1) fatty amines, (2) lower alkylamines or alkanolamines and (3), optionally, aminosilanes. A formula for the dispersants may be written as: ##STR1## isocyanate residue, A is fatty amine residue with a=20-80, B is lower alkylamine or alkanolamine residue with b=80-20, and C is aminosilane residue with c=0-40, the sum of a+b+c=100, the (mole) percentage of isocyanate groups replaced.
    Type: Grant
    Filed: December 23, 1980
    Date of Patent: January 18, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Christopher Scopazzi
  • Patent number: 4368297
    Abstract: A paint comprising a silyl group containing vinyl resin having a main chain comprising substantially vinyl polymer and copolymerized with maleic anhydride, wherein the resin has at least one silyl group bonded to a hydrolyzable group, and contains 0.1 to 20% by weight of the copolymerized maleic anhydride. The resin has a molecular weight of 300 to 30,000. A method of manufacturing such a resin is disclosed.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: January 11, 1983
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yasushi Kato, Hisao Furukawa, Naotami Ando
  • Patent number: 4367313
    Abstract: What are disclosed are a "one pot" moisture-curable two-component coating composition comprising a first component having at least one isocyanate group and at least one hydrolyzable alkoxysilane group therein and a second component having at least one oxazolidine group therein, methods of forming a tenacious coating therewith on non-porous substrates such as glass and of further applying a resinous sealant composition over such a tenacious coating used as a primer, and coated substrates having such a tenacious coating thereon without or with a further resinous sealant composition.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: January 4, 1983
    Assignee: Essex Chemical Corporation
    Inventors: Sidky D. Rizk, Navinchandra B. Shah
  • Patent number: 4360628
    Abstract: Solid copolymer tackifying resins based on dicyclopentadiene, a vinylaromatic hydrocarbon and a benzene carrying 1 to 3 lower alkyl, hydroxyl or halogen substituents and adhesive formulations containing these resins.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: November 23, 1982
    Assignee: National Starch and Chemical Corporation
    Inventors: Yves Runavot, Georges Billault, Jacques Salvetat
  • Patent number: 4341675
    Abstract: A rubber made from a blend of EPDM or EPR and a polydiorganosiloxane gum has strength, heat resistance, and adhesiveness to room-temperature, moisture-curable silicone rubber. The rubber is made from a blend of EPDM or EPR, polydiorganosiloxane gum, a polyorganosiloxane containing aliphatic hydrocarbon radicals of 4 to 20 carbon atoms, a polyoxyalkylene-organosiloxane copolymer or a poly(hydroxyalkyl)organosiloxane, and an organic peroxide.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: July 27, 1982
    Assignee: Toray Silicone Company, Ltd.
    Inventor: Akito Nakamura
  • Patent number: 4334036
    Abstract: A curable vinyl polymer having at least one silyl group of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each a hydrogen or a monovalent hydrocarbon radical having 1 to 10 carbon atoms, X is a group selected from halogen, alkoxy, acryloxy, aminoxy, phenoxy, thioalkoxy and amino groups; and "a" is a whole number equal to 0, 1 or 2, and having molecular weight of between 200 and 30,000, preferably between 1,500 and 25,000; and method for producing same, and products comprised of same; and wherein said method comprises reacting hydrosilane represented by the formula: ##STR2## wherein the same designations as above apply, with a polymer having carbon-carbon double bonds in the terminal or side chains of the polymer in which the main chain is a vinyl polymer having a molecular weight of between 200 and 30,000, and at a temperature of between 50.degree. and 150.degree. C.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: June 8, 1982
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kazuya Yonezawa, Hisao Furukawa, Masaaki Azuma
  • Patent number: 4328323
    Abstract: The disclosure of this application is directed to the production of silane modified copolymers of alkylene-alkyl acrylates by reacting a mixture containing a polysiloxane, particularly an organo titanate containing polysiloxane and a copolymer of alkylene-alkyl acrylate to produce a water curable, silane modified copolymer. The silane modified copolymers can be extruded about electrical conductors to provide insulation thereon characterized by improved surface characteristics.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: May 4, 1982
    Assignee: Union Carbide Corporation
    Inventor: Michael J. Keogh
  • Patent number: 4319007
    Abstract: Compositions are described, which are blow-moldable into shaped articles, comprising a reaction product between polycaprolactam, aminoalkyltrialkoxysilane and a catalytic amount of water. The compositions have a melt index of about 2.25 g/10 min. or below and are substantially free of trialkoxysilane groups. Preferred compositions also contain ethylene/vinyl acetate copolymer as an impact modifier to increase the impact strength of blow-molded articles made therefrom, such as bottles.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: March 9, 1982
    Assignee: Allied Corporation
    Inventor: Ghazi M. A. Khattab
  • Patent number: 4314043
    Abstract: Fluorine-containing elastomers comprise the grafted copolymer havig rubber-like elasticity and having chemical linkages at the reactive sites of fluorine-containing polymeric segments and organopolysiloxane segments.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: February 2, 1982
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Gen Kojima, Masayuki Tamura, Michio Hisasue
  • Patent number: 4310640
    Abstract: A composition comprising (a) an organic compound having at least one hydrolyzable silyl group and (b) an organic amine and/or an alkali metal hydroxide. The composition is curable upon exposure to moisture, and has superior properties, such as hardness, toughness and stain resistance, when used for example as a coating. The composition can be utilized as a coating material.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: January 12, 1982
    Assignee: Kanegafuchi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Yasushi Kato, Hisao Furukawa, Shoichi Matsumura, Saori Nakatsuka
  • Patent number: 4303484
    Abstract: A novel photocurable composition suitable for preparing, for example, release papers is proposed which is formulated with photocrosslinkable organopolysiloxanes necessitating no conventional photosensitizers. Thus, the composition comprises(a) an organopolysiloxane having at least two mercaptoalkyl, e.g. mercaptopropyl, groups bonded to the silicon atoms in a molecule,(b) an organopolysiloxane having at least two alkenyl, e.g. vinyl groups directly bonded to the silicon atoms in a molecule, and(c) an organopolysiloxane having at least one benzoin group ##STR1## where Ph is a phenyl group, bonded to the silicon atom in a molecule, which component (c) serves as a photosensitizing ingredient.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: December 1, 1981
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Minoru Takamizawa, Fumio Okada, Yasuaki Hara, Aoki, Hisashi
  • Patent number: 4297446
    Abstract: ABS-moulding compositions of (a) 5 to 70% by weight of one or more graft products and (b) 95 to 30% by weight of one or more thermoplastic resins with a content of 0.05 to 2.0% by weight (based on total mixture) of a silico urethane derivative to improve notched impact strength.
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: October 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Karl-Heinz Ott, Bernhard Arnold, Friedrich Kowitz, Harald Oertel, Dieter Kuhlmann
  • Patent number: 4296008
    Abstract: A sealant composition possessing an excellent balance of properties including good tack, low melt viscosity and a cohesive failure mechanism in the 180.degree. peel test comprises a selectively hydrogenated monoalkenyl arene/conjugated diene block copolymer component having certain block molecular weights, tackifying resin, plasticizers and silane coupling agent.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: October 20, 1981
    Assignee: Shell Oil Company
    Inventors: David J. St. Clair, Earle E. Ewins, Jr.
  • Patent number: 4293611
    Abstract: A process for the coating of textile materials with silicon polyether copolymer compositions and resulting products. The silicone polyether copolymers of this invention may be used either alone or in combination with other materials which have been used to treat textile materials, such as tetrafluoroethylene emulsions.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: October 6, 1981
    Assignee: SWS Silicones Corporation
    Inventor: Eugene R. Martin
  • Patent number: 4291136
    Abstract: A water-curable silane modified alkylene alkylacrylate copolymer and a method for its production, which method comprises reacting alkylene alkylacrylate copolymer with a particular silane in the presence of an organo titanate catalyst.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: September 22, 1981
    Assignee: Union Carbide Corporation
    Inventor: Michael J. Keogh