Abstract: A process for producing an epoxy silane oligomer including a reaction glycidoxy silane and/or cycloaliphatic epoxy silane having 2 or 3 alkoxy groups and, optionally, a copolymerizable silane other than glycidoxy and cycloaliphatic epoxy silane, with less than 1.5 equivalents of water in the presence of a catalyst, wherein said water is continuously fed during the reaction.
Abstract: A curable composition comprising a hydrolysable silyl-containing polymer and a silicone-containing paint adhesion additive that provide curable silyl-containing polymer composition which has improved adhesion of coatings, paints, adhesives, and other surface treatments thereto.
Type:
Grant
Filed:
June 27, 2007
Date of Patent:
August 4, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Zhiqing Lin, David A. Williams, Shayne J. Landon, Scott Pregont, Eric Pohl
Abstract: A mercaptofunctional silane is provided of general Formula (1): [HSG1SiZ?Z?]m[HSG2SiZ?3]n[HSG3SiZ?2X]o[[HSG4SiZ?X2]p??(1) wherein the substituents are defined herein.
Type:
Grant
Filed:
October 6, 2006
Date of Patent:
July 14, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric Raymond Pohl, Richard W. Cruse
Abstract: A filled elastomer composition comprises: a) at least one rubber component; b) at least one particulate filler; and, c) at least one mercaptofunctional silane of a particular structure.
Type:
Grant
Filed:
October 6, 2006
Date of Patent:
June 23, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric Raymond Pohl, Richard W. Cruse, Daniel Gurovich
Abstract: The disclosure herein relates to organofunctional silanes and mixtures of organofunctional silanes possessing mercaptan and hydrocarbyl and/or heterocarbyl functionality. These silanes reduce or eliminate the generation of volatile organic compounds (VOC's) during use, aid in the processing of filled elastomeric materials and enhance the end-use properties of the filled elastomer. The present disclosure relates to a rubber composition and article comprising these silanes.
Type:
Grant
Filed:
August 14, 2006
Date of Patent:
June 23, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric R. Pohl, Christopher M. Hartshorn
Abstract: The invention relates to a high thermal efficiency, insulated glass unit structure sealed with a cured composition containing, inter alia, moisture-curable silylated resin, the cured composition exhibiting low permeability to gas(es).
Abstract: The present invention relates to improved nanocomposite compositions and methods for making and using the same. This invention also relates to the use of these inorganic-organic nanocomposite in compositions, for example, coatings, sealants, caulks, adhesives, and as additives for solid polymer-containing compositions.
Type:
Grant
Filed:
January 20, 2006
Date of Patent:
May 12, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
David A. Williams, Vikram Kumar, Edward J. Nesakumar, Indumathi Ramakrishnan
Abstract: Silane compositions of the general formula are provided herein comprising [(RO)x(R1)(3-x)—Si-Mt]q-L-[(Ra)cAr—(CR2?CR22)y]z wherein R and R1 are independently a hydrocarbon group of from 1 to about 20 carbon atoms; R2 are each independently hydrogen or a hydrocarbon group of from 1 to about 20 carbon atoms; M optionally is a divalent hydrocarbon connecting group of from 1 to about 20 carbon atoms to link the silicon atom and the L group; L is a covalently bound hydrocarbon linking group of from 1 to about 20 carbon atoms or a heteroatom linking group selected from the group consisting of —O—, —S—, —NR3— wherein R3 is hydrogen or a hydrocarbon group of from 1 to about 20 carbon atoms; Ra is an alkyl group of 1 to 12 carbon atoms; Ar is a substituted or unsubstituted aromatic group; q is an integer of 1 to 4; t and c are each independently 0 or 1; and x, y and z are each independently integers of 1 to 3, inclusive, with the proviso that t is 1 when L is a heteroatom group.
Type:
Grant
Filed:
August 13, 2004
Date of Patent:
May 12, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Keith J. Weller, Lesley Hwang, Richard W. Cruse, Leda Gonzalez, Robert J. Pickwell, Martin Hofstetter, Wesley E. Sloan, Prashant G. Joshi
Abstract: A composition of matter is disclosed that comprises at least one silane coupling agent for coupling an elastomer and a filler wherein said silane comprises at least one hydrolysable group that, upon compounding said silane with said elastomer and filler, is released to yield a compound that improves downstream processability of the compounded composition or the properties of the final rubber product or both.
Abstract: The invention relates to architectural elements possessing at least two components bonded together employing a silicone rubber composition of high stability and translucency, which is useful for application as a bedding sealant in the manufacture of such architectural elements as window assemblies, door assemblies, structural glazing, curtainwall applications, and the like.
Abstract: An aqueous process is described in which thiocarboxylate silane is produced from haloalkyl silane by reaction of the haloalkyl silane with an aqueous solution of thiocarboxylate salt in the presence of a catalytically effective amount of alkylguanidinium salt.
Type:
Grant
Filed:
April 14, 2005
Date of Patent:
May 5, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Tiberiu Ladislau Simandan, Thomas Link Guggenheim
Abstract: A process is provided for making a moisture-curable silylated resin composition by reacting (i) at least one polyol, (ii) at least one polyisocyanate and (iii) at least one isocyanatosilane, optionally in the presence of catalyst, wherein the NCO/OH ratio is less than 1. The resulting moisture-curable silylated resin composition is useful in the manufacturer of each product as moisture-curable sealants, coatings and adhesives.
Type:
Grant
Filed:
October 27, 2005
Date of Patent:
April 28, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Misty Huang, Frank D. Medicino, Yurun Yang, Jeries I. Nesheiwat, Brendan J. O'Keefe
Abstract: A hydrido-silicone resin is incompletely reacted with an olefin under hydrosilylation conditions to produce a partially substituted hydrido-silicone that is further reacted under hydrosilylation conditions with a vinyl containing silicone to consume the remaining hydride species to produce a composition that is useful as an anti-mist agent in the coating of flexible supports.
Type:
Grant
Filed:
December 3, 2004
Date of Patent:
April 14, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
John Alfred Kilgour, Edwin C. Cua, John A. Cummings
Abstract: A process for crosslinking polymers employs a silane crosslinker which, upon hydrolysis, produces a reduced quantity of volatile organic compound.
Abstract: Free flowing filler composition based on organofunctional silane and/or mixtures of organofunctional silanes possessing mercaptan and blocked mercaptan functionality. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.
Type:
Grant
Filed:
February 21, 2006
Date of Patent:
March 31, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric R. Pohl, Linda Vecere, Lesley Hwang
Abstract: A rubber composition containing a rubber component, a filler and at least one organofunctional silane and/or mixture of organofunctional silanes 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:
March 17, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric R. Pohl, Linda Vecere, Lesley Hwang, Robert Pickwell
Abstract: A refractory container for evaporating metals, having improved useful life and corrosion resistance properties, the evaporation surface of the container having a plurality of grooves formed at the bottom surface. The grooves have either a depth of at least 1.2 mm, a width of at least 1.75 mm, or an interval spacing of at least 2.2 mm between adjacent grooves (or centers of adjacent grooves), and combinations thereof.
Type:
Grant
Filed:
November 4, 2005
Date of Patent:
February 24, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
David Michael Rusinko, Jr., Ajit Sane, Gary Zayas
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 600 nanometers, preferably from about 0.1 to about 500 nanometers, and most preferably from about 0.1 to about 100 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:
December 17, 2007
Date of Patent:
February 24, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Kenrick M. Lewis, Regina Nelson Eng, Sabrina R. Cromer, Abellard T. Mereigh, Chi-Lin O'Young
Abstract: The present invention provides for a curable composition comprising the reaction product of a silanol terminated silicone resin, a silanol terminated siloxane polymer and a silazane. The present invention also provides for the cured composition resulting from the curable composition and articles coated with the composition. The compositions of the present invention are corrosion resistant barrier coatings that are substantially chromium free.
Abstract: High tear strength, low hardness silicone elastomer-forming composition is provided using a unique combination(s) of polyorganosiloxanes and organohydrogenpolysiloxanes, where the polyorganosiloxanes and the organohydrogenpolysiloxanes contain both straight-chain and resinous polyorganosiloxanes.