Patents Examined by Karen A. Dean
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Patent number: 5747561Abstract: A chemically stable solid surface coating modifier is provided by application to a substrate of a dispersion containing a highly dispersed hydrophobic powder, a silicon liquid, a solvent, and, optionally, an adhesive. The powder has been activated by alkali or alkaline salts and then treated with an organic silylating agent. The modifer is effective in imparting water repellent, anti-fouling, anti-icing, anti-corrosive, anti-friction properties to varies surfaces. The modifer also provides protection against other chemical, biological and atmospheric agents.Type: GrantFiled: October 23, 1995Date of Patent: May 5, 1998Inventors: Aleksandr Vitalievich Smirnov, Oleg Georgievich Orlov, Pyotr Nikolaevich Golipad, Yurii Nikolaevich Koriakin, Boris Mikhailovich Yegorov
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Patent number: 5744528Abstract: The present invention provides a method of preparing an orthopedic cast comprising the step of coating a porous flexible substrate with a water-curable resin composition composed of a water-reactive alkoxysilane terminated resin having at least one hydrolyzable group per molecule. The resin composition has a viscosity of no greater than about 500 Pa-s under ambient conditions and contains less than about 1 wt-% of a solvent, based on the total weight of the resin composition.Type: GrantFiled: May 15, 1995Date of Patent: April 28, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Andrew Callinan, Matthew T. Scholz
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Patent number: 5741850Abstract: A method capable of the continuous mass-production without pressurization and using a low drive force of highly uniform and very storage-stable organopolysiloxane emulsions. The method for the continuous preparation of organopolysiloxane emulsions includes processes (I) and (II). Process (I) is the continuous supply of (a) organopolysiloxane fluid or gum, (b) emulsifying agent, and (c) water to a mixer having a first-stage shearing and stirring mechanism with a stator and a turbine-type rotor having blades that are slanted obliquely from the radial direction when viewed from the axial direction, and a second-stage shearing and stirring mechanism with a stator and a turbine-type rotor having blades that describe spiral curves with respect to the axial direction, and the discharge of an organopolysiloxane-in-water emulsion with an organopolysiloxane content of 10 to 99 weight %. Process (II) is the introduction of dilution water and the emulsion of process (I) into a mixer as described for process (I).Type: GrantFiled: August 27, 1996Date of Patent: April 21, 1998Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Hidehiko Hosokawa, Junichi Maeshima, Fumitaka Suto
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Patent number: 5741839Abstract: Storage-stable, alkoxy-crosslinking RTV1 systems that contain carbodiimides as stabilizers.Type: GrantFiled: May 2, 1996Date of Patent: April 21, 1998Assignee: Huels Silicone GmbHInventor: Uwe Scheim
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Patent number: 5741834Abstract: The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be formulated into liquid silicone elastomer moldable compositions.Type: GrantFiled: October 10, 1996Date of Patent: April 21, 1998Assignee: General Electric CompanyInventors: Brian John Ward, Edward Matthew Jeram, Richard Albert Striker
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Patent number: 5739184Abstract: The present invention relates to thermosetting resin compositions which may be used in the automotive industry as sealants to coat steel substrates. The thermosetting resin composition contains an epoxy resin, a rosin, an organometallic compound and, optionally, an elastomeric and/or thermoplastic polymeric binder.Type: GrantFiled: December 17, 1996Date of Patent: April 14, 1998Assignee: National Starch and Chemical CompanyInventors: David L. Marbry, David R. Duller
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Patent number: 5733996Abstract: The specification describes and claims a composition curable in presence of atmospheric moisture to an elastomeric body, comprising (A) the product formed by mixing a polymeric material having at least two groups bonded to silicon which are hydroxyl or hydrolysable (eg alkoxy) groups and an alkoxysilane curative and (B) a compound according to the general formula M?OR!.sub.x ?OR'!.sub.y where M represents a metal having a valency of 4 selected from Group IVB of the Periodic Table and is preferably titanium, x has a value from 0 to 1, y has a value from 3 to 4 and (x+y)=4, R' represents a monovalent tertiary aliphatic hydrocarbon group and R represents a monovalent linear aliphatic hydrocarbon group having 1 to 6 carbon atoms which is different from R'. Preferred compounds (B) are those in which R' represents C(R.sup.2 R.sup.3 R.sup.4) in which each of R.sup.2, R.sup.3 and R.sup.Type: GrantFiled: June 4, 1996Date of Patent: March 31, 1998Assignee: Dow Corning S.A.Inventors: Francois De Buyl, Patrick Leempoel
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Patent number: 5733663Abstract: To produce a composite membrane, the solution of a polymer in a volatile organic solvent is spread on water, the solvent is allowed to evaporate, the polymer is crosslinked and the polymer film formed is transferred to a porous support membrane. The polymer is preferably a polysiloxane which is cross-linked via polymer-bonded OH groups. The composite membrane is suitable, inter alia, for pervaporation.Type: GrantFiled: July 25, 1997Date of Patent: March 31, 1998Assignee: Hoechst AktiengesellschaftInventors: Ude Scheunemann, Olaf Althoff, Werner Hickel, Gunther Appel, Jacqueline Bauer, Gerhard Geiss
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Patent number: 5733962Abstract: A polyarylene sulfide resin composition comprising as major components: (A) 100 parts by weight of a polyarylene sulfide resin; (B) 200-30 parts by weight of mica; (C) 150-30 parts by weight of carbon fiber; and (D) 30-0.5 parts by weight of conductive carbon black. Various parts with stable conductivity and high dimensional precision can be produced from this resin composition by one molding operation.Type: GrantFiled: April 15, 1996Date of Patent: March 31, 1998Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Yasuhiro Osako, Tomoyoshi Murakami
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Patent number: 5733960Abstract: The longevity of a surface driving oil layer on a room temperature vulcanizable silicone sealant is increased by adding zinc oxide to a non-acidic composition and exposing the composition to atmospheric moisture which forms the surface drying oil layer on an air exposed surface.Type: GrantFiled: April 4, 1996Date of Patent: March 31, 1998Assignee: Dow Corning CorporationInventors: Michael Gene Altes, Virginia Kay O'Neil, Arthur James Tselepis, Andreas Thomas Franz Wolf
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Patent number: 5733977Abstract: The present invention provides a solid golf ball which is superior in shot feel and attains long flight distance. The solid golf ball comprises a core and a cover covering the core, wherein the core is prepared by vulcanizing a rubber composition comprising a base rubber obtained by mixing silicone rubber and a diene rubber under conditions wherein crosslinking of the diene rubber does not occur but crosslinking of the silicone rubber does occur, and wherein the mixing ratio of silicone rubber to the diene rubber is within the range of 5:95 to 45:55 by weight.Type: GrantFiled: March 7, 1996Date of Patent: March 31, 1998Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kouhei Takemura, Akihiro Nakahara
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Patent number: 5728719Abstract: The present invention is a method for controlling ectoparasites. More particularly, the invention relates to a method of treatment in which the warm blooded animal is dosed with an ovicidally effective amount of a heterocyclic nitrogen compound selected from the group represented by the formula: ##STR1## wherein R.sub.1, is either one of the following groups: ##STR2## in which R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15, R.sub.16, and R.sub.17 are, the same or different, each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.4 alkoxy group, a C.sub.1 -C.sub.4 alkylthio group, a trifluoro methyl group or a vitro group, R.sub.18, R.sub.19, R.sub.20 and R.sub.21 are, the same or different, each a hydrogen atom or a methyl group, k is an integer of 0 to 1 and 1 is an integer of 0 to 3; R.sub.2 and R.sub.3 are, the same or different, each a hydrogen atom, a halogen atom or a methyl group; R.sub.4 is a halogen atom or a methyl group; R.sub.5 and R.sub.Type: GrantFiled: March 14, 1995Date of Patent: March 17, 1998Assignee: Virbac, Inc.Inventor: Thomas A. Miller
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Patent number: 5726241Abstract: A finish composition for a precursor for high-performance carbon fibers, containing (1) 0.2-10 parts by weight of an aminocarboxylic material selected from the group consisting of carboxylic acid salts of alkylamines, carboxylic acid salts of arylamines, carboxylic acid salts of alkylarylamines, amino acids and betaine compounds, and (2) 100 parts by weight of a mixture of (a) 80-20 parts by weight of a finish prepared by adding, to (i) a silicone finish containing 50 wt % or more of an amino-modified polysiloxane having a nitrogen content in amino groups in the range of 0.05-2.0 wt % and a viscosity at 25.degree. C. of 500 centistokes or more, (ii) 0.3-5.0 molar equivalents of a lower aliphatic monocarboxylic acid of 6 carbon atoms or less with respect to 1 mole of the amino group, and (b) 20-80 parts by weight of a nonionic emulsifier consisting mainly of a polyoxyethylene alkyl ether, a polyoxyethylene alkylaryl ether or a polyoxyethylene fatty acid ester.Type: GrantFiled: September 17, 1996Date of Patent: March 10, 1998Assignee: Hexcel CorporationInventors: Kunio Maruyama, Ryuichi Koide
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Patent number: 5721297Abstract: Novel piperidyl organosiloxanes, well adapted for the light/UV-stabilization of a wide variety of polymer substrates, e.g.Type: GrantFiled: July 1, 1992Date of Patent: February 24, 1998Assignee: Rhone-Poulenc ChimieInventors: Michel Gay, Sylvie Lavault
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Patent number: 5719207Abstract: The present invention relates to a silica reinforced rubber composition and to pneumatic tires having treads comprised of the silica reinforced rubber compositions.The silica reinforced rubber composition comprises at least one elastomer, silica, a silica coupler, a silylating agent and, optionally, carbon black.Type: GrantFiled: March 18, 1996Date of Patent: February 17, 1998Assignee: The Goodyear Tire & Rubber CompanyInventors: Martin Paul Cohen, John Pennington Lawrence, Cheryl Ann Losey
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Patent number: 5717010Abstract: The present invention provides novel vinyl containing organopolysiloxane elastomers which possess excellent low compression set and heat aging characteristics and which can advantageously be formulated into liquid silicone elastomer moldable compositions.Type: GrantFiled: August 28, 1996Date of Patent: February 10, 1998Assignee: General Electric CompanyInventors: Brian J. Ward, Edward M. Jeram, Richard A. Striker
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Patent number: 5717052Abstract: The invention relates to the following novel silanes: methyl vinyl bis-(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; methyl tris-(methyl amyl ketoximino) silane; vinyl tris-(methyl amyl ketoximino) silane; tetrakis-(methyl isobutyl ketoximino) silane; tetrakis-(methyl amyl ketoximino) silane; methoxy tris-(methyl isobutyl ketoximino) silane; ethyl tris-(methyl isobutyl ketoximino) silane; ethoxy tris-(methyl isobutyl ketoximino) silane; methoxy tris-(methyl amyl ketoximino) silane; ethyl tris-(methyl amyl ketoximino) silane; ethoxy-tris-(methyl amyl ketoximino) silane; and mixtures thereof.Type: GrantFiled: December 4, 1996Date of Patent: February 10, 1998Assignee: AlliedSignal Inc.Inventors: Chempolil Thomas Mathew, Edward Thanaraj Asirvatham, Jeffrey Alan Knepper, Dale Russell Flackett
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Patent number: 5712343Abstract: The invention relates to the preparation of organopolysiloxane microemulsions, wherein the components (A) organopolysiloxane, (B) emulsifier, (C) water, optionally, (D) cosurfactant and optionally (E) acid are brought together and mixed in any desired sequence. Microemulsions are formed spontaneously without introduction of energy in the form of heat or severe shearing forces.Type: GrantFiled: April 17, 1996Date of Patent: January 27, 1998Assignee: Wacker-Chemie GmbHInventors: Michael Geck, Hans-Juergen Lautenschlager, Bernward Deubzer, Petra Stinglhammer, Peter Habereder, Kurt Ullrich
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Patent number: 5710203Abstract: Disclosed are compositions which can be used to form tamper-proof coatings on electronic devices. These compositions contain a silica precursor resin and a filler which reacts in an oxidizing atmosphere to liberate heat. Such compositions form coatings which, when oxidized by techniques such as plasma etching, wet etching, or cross-sectioning, liberate heat which causes destruction of the underlying substrate and, thus, inhibits further examination.Type: GrantFiled: November 7, 1994Date of Patent: January 20, 1998Assignee: Dow Corning CorporationInventors: Robert Charles Camilletti, Loren Andrew Haluska, Keith Winton Michael
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Patent number: 5707613Abstract: A method of spontaneously forming a highly stable clear microemulsion by combining (i) water; (ii) a volatile cyclic methyl siloxane or volatile linear methyl siloxane; and (iii) a silicone polyether surfactant. The amounts of each component are such that the composition is in the form of a microemulsion. The volatile methyl siloxane is present in the microemulsion in the form of particles having an average diameter of less than about 100 nanometers. The microemulsion is useful in personal care products.Type: GrantFiled: August 9, 1996Date of Patent: January 13, 1998Assignee: Dow Corning CorporationInventor: Randal Myron Hill