Abstract: There is provided herein, in one specific embodiment, silicone composition(s) comprising unique combination(s) of silicone polymer and alkyltrisiloxane(s) which can produce silicone composition(s) with lower solids content than silicone compositions that use other than alkyltrisiloxane(s); while still maintaining a desirable viscosity.
Type:
Grant
Filed:
June 26, 2006
Date of Patent:
January 4, 2011
Assignee:
Momentive Performance Materials Inc.
Inventors:
Benjamin Falk, Judith Kerschner, Gerald J. Murphy, John Nicholson
Abstract: An improved process for preparing hydrolyzable polymers, the process includes, inter alia, reacting certain silylorganohalide compounds with a salt of a cyanate in the presence of active hydrogen containing polymers.
Abstract: The present invention relates to thermal cure silicone hardcoat compositions that are prepared with an aqueous/organic solvent silicone dispersion, partial organoalkoxysilane condensate and silylating agent. The novel heat curable silicone hardcoats are useful on various substrates with improved flexibility.
Abstract: The present invention provides a process for using nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and mixtures thereof, as sources of catalytic copper in the Direct Synthesis of trialkoxysilanes of the formula HSi(OR)3 wherein R is an alkyl group containing from 1 to 6 carbon atoms inclusive. The nanosized copper, nanosized copper oxides, nanosized copper chlorides, other nanosized copper salts, and their mixtures of this invention have average particle sizes that are in the range from about 0.1 to about 60 nanometers, preferably from about 0.1 to about 30 nanometers, and most preferably from about 0.1 to about 15 nanometers. Nanosized sources of catalytic copper afford high dispersion of catalytic sites on silicon and contribute to high reaction rates, high selectivity and high silicon conversion. The nanosized copper catalyst precursors of the invention permit the use of substantially reduced levels of copper compared to conventional practice.
Type:
Grant
Filed:
May 21, 2007
Date of Patent:
December 28, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Sabrina R. Cromer, Regina Nelson Eng, Kenrick M. Lewis, Abellard T. Mereigh, Chi-Lin O'Young, Hua Yu
Abstract: A crystalline composition is provided that includes gallium and nitrogen. The crystalline composition may have an amount of oxygen present in a concentration of less than about 3×1018 per cubic centimeter, and may be free of two-dimensional planar boundary defects in a determined volume of the crystalline composition. The volume may have at least one dimension that is about 2.75 millimeters or greater, and the volume may have a one-dimensional linear defect dislocation density of less than about 10,000 per square centimeter.
Type:
Grant
Filed:
January 9, 2007
Date of Patent:
December 28, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark Philip D'Evelyn, Dong-Sil Park, Steven Francis LeBoeuf, Larry Burton Rowland, Kristi Jean Narang, Huicong Hong, Stephen Daley Arthur, Peter Micah Sandvik
Abstract: The present invention describes novel non-hydrolyzable, linear, random block copolymers comprising units of polysiloxanes and polyalkyleneoxides linked by bis-aminofunctional groups. These copolymers have been successfully applied as textile enhancers as well as conditioning agents for hair and skin care products.
Abstract: A film forming composition with spreading properties derived from an aqueous emulsion comprising (I) colloidal silica core/silicone shell particles consisting of (a) 90 wt % to 10 wt % cores of colloidal silica and (b) 10 wt % to 90 wt % shells of polyorganosiloxane; (II) a polyalkyleneoxide modified trisiloxane; (III) an emulsifier package consisting of at least one anionic surfactant, and (IV) the salt of an acidic polymerization catalyst. The composition may include optional ingredients useful in Personal Care, Hair Care, Skin Care, Agricultural, and Home Care applications.
Type:
Grant
Filed:
August 17, 2007
Date of Patent:
December 14, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Anna M. Czech, Benjamin Falk, John Nicholson, George A. Policello, Jo Anne Tully
Abstract: The present invention relates to curable alkenyl based silicone release coating compositions having improved adhesion to paper and polymeric substrates. Furthermore the present invention relates to the process for making a silicone release coating with improved adhesion to paper and polymeric substrates.
Type:
Grant
Filed:
February 2, 2006
Date of Patent:
November 30, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Roy Melvin Griswold, Richard Paul Eckberg, Slawomir Rubinsztajn, Stanislaw Slomkowski, Anna Kowalewska, Stanislaw Sosnowski
Abstract: The cosmetic 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:
November 16, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
Abstract: An asymmetric siloxane is made by reacting a silicone having the formula MHDxM?H where MH is R1R2HSiO1/2, M?H is R4R5HSiO1/2 and x is an integer 0?x?10 under selective hydrosilylation conditions in the presence of a precious metal hydrosilylation catalyst, with a first olefinic compound and in a second step, a monohydridosiloxane produced in the first step is reacted under hydrosilylating conditions with another olefinic compound different from the first olefinic compound.
Type:
Grant
Filed:
August 14, 2006
Date of Patent:
November 16, 2010
Assignee:
Momentive Performance Materials Inc
Inventors:
David D Farris, Chauncey J Rinard, Mark D Leatherman
Abstract: The present invention relates to novel adhesive-forming compositions of silylated polyurethane prepolymer blended with pre-formed adhesives, and pressure sensitive adhesives containing the same. The silylated polyurethane prepolymer is obtained from the silylation of a polyurethane prepolymer derived from the reaction of polybutadiene polyol and polyisocyanante, where the polybutadiene polyol possesses a primary hydroxyl group content of from about 0.1 to about 2.0 meq/g.
Type:
Grant
Filed:
November 14, 2006
Date of Patent:
November 9, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Roy M. Griswold, Robert L. Frye, Mark J. Bisaillon
Abstract: An asymmetric siloxane is made by reacting a silicone having the formula MHDxM?H where MH is R1R2HSiO1/2, M?H is R4R5HSiO1/2 and x is an integer 0?x?10 under selective hydrosilylation conditions in the presence of a precious metal hydrosilylation catalyst, with a first olefinic compound an in a second step, a monohydridosiloxane produced in the first step is reacted under hydrosilylating conditions with another olefinic compound different from the first olefinic compound.
Type:
Grant
Filed:
August 14, 2006
Date of Patent:
November 9, 2010
Assignee:
Momentive Performance Materials Inc
Inventors:
David D Farris, Chauncey J Rinard, Mark D Leatherman
Abstract: A process is provided for the production of isocyanatosilane from silylorganocarbamate in a cracking zone with a predetermined portion of purged reaction medium undergoing conversion in a trimerization zone to silylisocyanurate.
Abstract: The present invention provides a process for preparing substantially two-dimensional partially crosslinked organo-functional silicone in an aqueous emulsion system. The novel composition provides enhanced surface softness and smoothness to various materials.
Abstract: A method for producing a functionalized silica, compositions and methods for forming curable silicone rubber compositions by using the functionalized silica are also disclosed. Compositions and methods for forming cured silicone resin compositions and products having high transparency, high tensile strength, desirable percent elongation, or a combination of the foregoing properties are also disclosed.
Type:
Grant
Filed:
July 13, 2007
Date of Patent:
September 7, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Abirami Srikanth, Vikram Kumar, Helmut Steinberger, Umapathy Senthilkumar
Abstract: A crystal comprising gallium nitride is disclosed. The crystal has at least one grain having at least one dimension greater than 2.75 mm, a dislocation density less than about 104 cm?2, and is substantially free of tilt boundaries.
Type:
Grant
Filed:
November 13, 2006
Date of Patent:
August 31, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark Philip D'Evelyn, Dong-Sil Park, Steven Francis LeBoeuf, Larry Burton Rowland, Kristi Jean Narang, Huicong Hong, Stephen Daley Arthur, Peter Micah Sandvik
Abstract: Sulfur-containing silane and its partially to substantially complete hydrolyzate(s) are useful as additives for filled elastomeric compositions for tires and other cured rubber articles.
Type:
Grant
Filed:
July 31, 2008
Date of Patent:
August 31, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Lesley Hwang, Antonio Chaves, Eric R. Pohl
Abstract: A process for producing a low VOC epoxy silane oligomer which includes hydrolyzing an epoxy silane, the epoxy silane upon hydrolysis of its hydrolyzable sites producing a reduced amount of volatile organic compound compared to that produced by the hydrolysis of a silane possessing an equivalent number of hydrolyzable sites all of which are hydrolyzable alkoxy groups, the hydrolyzing of the epoxy silane being carried out with less than 1.5 equivalents of water, said water being continuously fed during the hydrolysis reaction.
Abstract: This invention relates to moisture-curable resins generally and, more particularly, to two-part moisture-curable resin compositions the first part of which contains a moisture-curable silylated resin and the second part of which contains water. The invention further relates to adhesive, sealant and coating compositions based on such two-part moisture-curable resin compositions.