Abstract: The invention relates to sulfur silane coupling agents containing multiple blocked mercapto groups which are in a state of reduced activity until activated. The coupling agents are advantageously used in rubber formulations, for example, for fabricating tires with low rolling resistance.
Type:
Grant
Filed:
December 28, 2006
Date of Patent:
August 24, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Richard W. Cruse, W. Michael York, Eric R. Pohl, Antonio Chaves, Tiberiu L. Simandan, Prashant Joshi
Abstract: A layered heater structure including an electrode layer and a localized tuning method for tuning the electrode layer of a layered heater structure with high precision is provided. The localized tuning method tunes the electrode layer to its proper local resistance to minimize temperature offsets on the heater surface and thus provide a desired thermal profile that is in marked contrast to conventional, non-localized resistance tuning approaches based on thickness trimming practices, such as grinding or blasting, or resistivity adjustment, such as local heat treatment.
Type:
Grant
Filed:
December 17, 2007
Date of Patent:
August 17, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Wei Fan, Benjamin J. Olechnowicz, Marc Schaepkens, David M. Rusinko, Jr., Xiang Liu, John T. Mariner
Abstract: There is provided silicone gel-forming composition comprising a unique combination of polyorganosiloxane and organohydrogenpolysiloxane, which can produce silicone gel with improved hysteresis.
Abstract: A silane coating composition containing a silicon-based copolymer, a method for treating the surfaces of a metal such as steel, zinc-coated steels, or aluminum, to provide for the formation of a uniform conversion and/or passivation coating which increases the corrosion resistance of bare or painted metal and/or the adhesion properties of the metal, along with a metal having a conversion and/or passivation coating applied thereto are disclosed. Methods of the invention include contacting the requisite metal surface with an aqueous solution of a silane compound and a silicon-based polyether copolymer.
Type:
Application
Filed:
January 8, 2010
Publication date:
July 15, 2010
Applicant:
Momentive Performance Materials Inc.
Inventors:
Christopher M. BYRNE, George Policello, Suresh Rajaraman
Abstract: This invention relates to novel sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These novel silanes can be carried on organic and inorganic fillers. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.
Type:
Application
Filed:
February 16, 2010
Publication date:
July 8, 2010
Applicant:
Momentive Performance Materials Inc.
Inventors:
Richard W. Cruse, W. Michael York, Eric R. Pohl, Antonio Chaves, Prashant Joshi
Abstract: The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a silicone demulsifier into an emulsion comprising an oil phase and an aqueous phase, the silicone demulsifier having a molecular structure comprising a polysiloxane backbone of at least two siloxane units covalently bound to (i) one or more alkylene oxide groups comprising one or more alkylene oxide units independently having one to five carbon atoms, and (ii) one or more oxirane-containing and/or oxetane-containing groups, wherein said oxirane or oxetane is optionally ring-opened by reaction with a chemical or group capable of ring-opening an oxirane or oxetane ring, respectively, and wherein a solid filler is substantially excluded from the silicone demulsifier and emulsion. The invention also relates to compositions containing the above-described demulsifier and the water and oil phases of an emulsion.
Type:
Grant
Filed:
June 22, 2006
Date of Patent:
June 29, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Kalman Koczo, Sabine Isabelle Azouani, Benjamin Falk
Abstract: A cosmetic composition includes comprising a blend of cycloalkylmethicones comprising at least two different cycloalkylmethicones having general formula I: where R1 is a hydrocarbon radical containing about 2 to about 4 carbon atoms; R2, R3, R4, R5, and R6 are independently selected from the group consisting of a hydrocarbon radical containing about 1 to about 4 carbon atoms; a is a positive number between 0<a<5; b and c are independently selected from 0 to 5 wherein (a+b+c)?5; and wherein the rates of evaporation of the composition as measured in accordance with standard DIN 53249 test is from about 80% to about 99% by weight loss in about 200 to about 6000 minutes, more preferably in about 200 to about 1000 minutes, and even more preferably in about 200 to about 500 minutes.
Abstract: A graphite heater and method of forming a graphite heater comprising a graphite body configured to form an electrical heating circuit for at least one heating zone through the graphite encapsulated in a continuous overcoat layer comprising at least one of a nitride, carbide, carbonitride or oxynitride of elements selected from a group consisting of B, Al, Si, Ga, refractory hard metals, transition metals, and rare earth metals, or complexes and/or combinations thereof, wherein prior to being configured to form the electrical heating circuit path, the graphite body is coated with a layer comprising at least one of a nitride, carbide, carbonitride or oxynitride of elements selected from a group consisting of B, Al, Si, Ga, refractory hard metals, transition metals, and rare earth metals, or complexes and/or combinations thereof.
Abstract: This invention relates to novel free-flowing filler compositions containing silated cyclic core polysulfide coupling agents, and to a rubber containing the filler composition.
Type:
Grant
Filed:
December 28, 2006
Date of Patent:
June 15, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Richard W. Cruse, W. Michael York, Eric R. Pohl, Prashant Joshi
Abstract: The present invention relates to a process for the production of silylated polyurethane resins free of unreacted residual isocyanate possessing consistent viscosity and stability and products therefrom.
Type:
Grant
Filed:
September 21, 2006
Date of Patent:
June 8, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Brendon J. O'Keefe, Holger J. Glatzer, Misty W. Huang, Christine Lacroix
Abstract: A process for producing a low VOC epoxy silane oligomer which includes the reaction of an epoxy silane with water in a water to silane molar ratio of from 0.1 to 1.5, in which the epoxy silane is the reaction product of an epoxy alkoxy-substituted silane and a diol or a dicarboxylic acid.
Abstract: Disclosed herein is a process for preparing a shelf-stable, one-pack, silane modified (meth)acrylic latex interpolymer composition, wherein the process comprises continuously adding at least a portion of a mixture comprising at least 0.5 mole percent of a vinyl silane comprising hydrolyzable groups and up to 99.5 mole percent of a (meth)acrylic monomer to water and a surfactant in a reaction vessel, wherein said addition is carried out in the presence of a polymerization initiator and buffer sufficient to maintain the pH of the reaction at a level of at least 6 throughout the reaction, while simultaneously hydrolyzing from about 10 to about 60% of the hydrolyzable groups of the vinyl silane.
Type:
Grant
Filed:
June 30, 2004
Date of Patent:
May 25, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Weizhen Cai, William B. Herdle, Jeffrey A. Cooke, Bruce A. Waldman
Abstract: A process is provided for preparing organofunctional silanes, inclusive of dimers and oligomers, in which individual silanes possess both free and blocked mercaptan functionality or particular mixtures of the organofunctional silanes possess both free and blocked mercaptan functionality. The organofunctional silanes and silane mixtures are useful, inter alia, as coupling agents for elastomeric compositions, e.g., rubber formulations employed in the manufacture of tires, where they exhibit a desirable balance of low scorch and good performance properties.
Type:
Grant
Filed:
February 21, 2006
Date of Patent:
May 18, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric R. Pohl, Linda Vecere, Lesley Hwang
Abstract: The invention relates to low-foaming gas processing compositions comprising (a) a silicone antifoam component comprising a base silicone fluid and a particulate metal oxide; (b) an emulsifying component in an amount suitable for the at least substantial emulsification of the silicone antifoam component in water; (c) a polypropylene glycol component at least partially soluble, emulsifiable, and/or dispersible in water; (d) a water-soluble or water-dispersible gas processing agent; and (e) water. The invention also relates to methods for processing a gas by treating the gas with these foam suppressing compositions.
Abstract: A heater that may include an outer housing and an inner tube is provided. The inner tube is in a coaxial relation to and within the outer housing. An inward facing surface of the inner tube defines a volume sufficient to receive a reaction capsule, and the outward facing surface is radially spaced from an inward facing surface of the outer housing sufficient to define a gap. A filler material is disposed within the gap. The filler material responds to pressure such that the filler volume is reduced by less than 5 volume percent at greater than 500 MPa pressure and at greater than 500° C. temperature. One or more heating elements are disposed in the gap. The heating elements are in thermal communication with the inner tube.
Type:
Grant
Filed:
September 14, 2006
Date of Patent:
April 27, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Robert Arthur Giddings, Mark Philip D'Evelyn, Subhrajit Dey, Bruce John Badding, Larry Qiang Zeng
Abstract: A method of making nanosized copper (I) compounds, in particular, copper (I) halides, pseudohalides, and cyanocuprate complexes, in reverse micelles or microemulsions is disclosed herein. The method of the invention comprises (a) dissolving a copper (II) compound in the polar phase of a first reverse micelle or microemulsion, (b) dissolving a copper (II) to copper (I) reducing agent or a pseudohalide salt in the polar phase of a second sample of the same reverse micelle or microemulsion, (c) mixing the two reverse micelle/microemulsions samples to form nanometer sized copper (I) compounds and (d) recovering said nanometer sized copper (I) compounds. The present invention is also directed to the resultant nanosized copper (I) compounds, such as copper (I) chloride, copper (I) cyanide, and potassium cyanocuprate complexes having an average particle size of about 0.1 to 600 nanometers.
Abstract: This invention relates to novel sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These novel silanes can be carried on organic and inorganic fillers. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.
Type:
Grant
Filed:
December 28, 2006
Date of Patent:
April 13, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Richard W. Cruse, W. Michael York, Eric R. Pohl, Prashant Joshi
Abstract: The compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.
Type:
Grant
Filed:
April 30, 2007
Date of Patent:
March 30, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
Abstract: This invention relates to novel sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These novel silanes can be carried on organic and inorganic fillers. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.
Type:
Grant
Filed:
December 28, 2006
Date of Patent:
March 30, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Richard W. Cruse, W. Michael York, Eric R. Pohl, Antonio Chaves, Prashant Joshi