Abstract: A coating composition is provided which includes an adhesion promoter or a crosslinker silane which, upon hydrolysis, of its hydrolyzable sites, produces 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.
Abstract: The invention relates to a high thermal efficiency, insulated glass unit structure sealed with a cured composition containing, inter alia, diorganopolysiloxane(s) and inorganic-organic nanocomposite(s), the cured composition exhibiting low permeability to gas(es).
Type:
Grant
Filed:
January 20, 2006
Date of Patent:
March 30, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Shayne J. Landon, David A. Williams, Vikram Kumar, Edward J. Nesakumar, Indumothi Ramakrishnan
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 thiocarbamoyldisulfanyl-functional cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: G[-CaH2a—S—S—C(?S)NR2]n wherein G is a saturated, monocyclic aliphatic group of valence n containing from 5 to 12 carbon atoms and optionally containing at least one halogen or a saturated monocyclic silicone [RSiO—]n[R2SiO—]p group of valence n; each R independently is a hydrogen or a monovalent hydrocarbon of up to 20 carbon atoms; each occurrence of subscripts a independently is an integer wherein a is 2 to 6; n is an integer of from 3 to 6; and, p is an integer of from 0 to 3.
Type:
Grant
Filed:
October 30, 2008
Date of Patent:
March 9, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
William Michael York, Richard W. Cruse, Carla Recker, Thomas Kramer, Katharina Herzog
Abstract: The present invention provides for a room temperature cured silicone thermoplastic resin sealant composition with reduced gas permeability useful in the manufacture of glazing such as windows and doors.
Type:
Grant
Filed:
November 18, 2005
Date of Patent:
March 9, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Shayne J. Landon, David A. Williams, Vikram Kumar, Sachin Askok Shelukar, Edward Joseph Nesakumar, Indumathi Ramakrishnan
Abstract: A process for making a fluorosilicone MDaDFbM? where M=R1R2R3SiO1/2; M?=(OH)R6R7SiO1/2 or (OH)R4R5SiO1/2; D=R4R5SiO2/2; and DF=R6R7SiO2/2; where the subscript a is zero or positive, the subscript b is positive and the subscripts a and b satisfy the following relationship: b>0.
Type:
Grant
Filed:
October 13, 2006
Date of Patent:
March 2, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Nancy E. Gosh, John S. Razzano, Anping Wang
Abstract: The present invention relates to silicone modified fatty carboxylic acid compounds. More specifically, the present invention relates to low molecular weight, i.e., short chain, silicone modified fatty carboxylic acids, their use and method of making same. The present invention provides silicone compounds partially derived from natural products for use in cosmetic formulations.
Abstract: Compositions comprising an asymmetric disiloxane surfactant composition comprising a silicone composition comprising a silicone having the formula: MM? where M or M? comprises an alkylpolyalkyleneoxide bearing substituent selected from the group consisting of: R13(C2H4O)a(C3H6O)b(C4H8O)cR14 and R12SiR5R6(R13(C2H4O)a(C3H6O)b(C4H8O)cR14) that exhibit resistance to hydrolysis over a wide pH range.
Type:
Grant
Filed:
June 30, 2006
Date of Patent:
January 26, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
Abstract: The Direct Synthesis of trialkoxysilane is carried out by conducting the Direct Synthesis reaction of silicon and alcohol, optionally in solvent, in the presence of a catalytically effective amount of Direct Synthesis catalyst and an effective catalyst-promoting amount of Direct Synthesis catalyst promoter, said promoter being an organic or inorganic compound possessing at least one phosphorus-oxygen bond.
Type:
Grant
Filed:
November 21, 2005
Date of Patent:
January 26, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Kenrick M. Lewis, Abellard T. Mereigh, Chi-Lin O'Young, Rudolph A. Cameron
Abstract: A composition is provided that may include a sulfur-functional linear polyorganosiloxane. The sulfur-functional linear polyorganosiloxane may include a chemically protected sulfur group. Under certain conditions, the sulfur group may react with an unsaturated elastomer. The invention may include embodiments that relate to method of making and using the sulfur-functional linear polyorganosiloxane.
Type:
Grant
Filed:
December 16, 2005
Date of Patent:
January 26, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Norberto Silvi, Robert James Perry, Ben Purushotam Patel, Paul Burchell Glaser, Brennan Alexander Smith
Abstract: A composition comprises a polyorganosiloxane and an admixed hindered amine light stabilizer (HALS) wherein the polyorganosiloxane is free from alternating cyclic hydrocarbon residues. A method of stabilizing a polyorganosiloxane composition comprises providing a polyorganosiloxane and admixing a HALS with the polyorganosiloxane. A light bulb comprises an enclosure coated with a polyorganosiloxane composition containing a HALS.
Type:
Grant
Filed:
March 8, 2004
Date of Patent:
January 26, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Randall Lee Carter, Tricia Patrice Silverton, Robert J. Berki
Abstract: The invention relates to branched polysiloxane compositions resulting from copolymerizing under hydrosilylation conditions a component mixture comprising (a) one or more organosilicon compounds containing at least two unsaturated hydrocarbon functional groups per molecule, and (b) one or more silylhydride-containing compounds containing at least two silylhydride functional groups per molecule, with the provision that (i) at least one component (a) or (b) contains at least three functional groups per molecule; (ii) a component (a) or (b) having a higher number of functional groups per molecule is present in a molar amount equal to or lower than a molar amount of the other component (a) or (b) having a lower number of functional groups per molecule; and (iii) unsaturated hydrocarbon compounds are excluded from the component mixture.
Abstract: Compositions comprising disiloxane surfactant compositions comprising a silicone composition comprising a silicone having the formula: MM? where M=R1R2R3SiO1/2; M?=R4R5R6SiO1/2; with R1 selected from the group consisting of branched monovalent hydrocarbon radical of from 3 to 6 carbon atoms and R7, where R7 has the formula: R8R9R10SiR12 with R8, R9, and R10 each independently selected from the group of monovalent hydrocarbon radicals having from 1 to 6 carbon atoms and monovalent aryl or alkaryl hydrocarbon radicals having from 6 to 13 carbon atoms and R12 is a divalent hydrocarbon radical having from 1 to 3 carbon atoms, R2 and R3 are each independently selected from the group of from 1 to 6 carbon atom monovalent hydrocarbon radicals or R1, with R4 an alkylpolyalkyleneoxide of the general formula: R13(C2H4O)a(C3H6O)b(C4H8O)cR14 where R13 is a divalent linear or branched hydrocarbon radical having the structure: —CH2—CH(R15)(R16)dO— where R15 is H or methyl; R16 is a divalent alkyl radical of 1 t
Type:
Grant
Filed:
December 13, 2005
Date of Patent:
January 12, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
Abstract: Organosilicon compounds are prepared by the addition reaction of a gaseous unsaturated hydrocarbon with a silane or siloxane containing at least one silicon-bonded hydrogen atom in the presence of a hydrosilylation catalyst in a liquid reaction medium. In this process the unsaturated hydrocarbon and optionally the silane or siloxane is dispersed into the liquid reaction medium by a jet eductor (also known as a venturi pump) device and the resultant gas-in-liquid dispersion is introduced into a bubble reactor.
Type:
Application
Filed:
June 30, 2009
Publication date:
January 7, 2010
Applicant:
Momentive Performance Materials, Inc.
Inventors:
Larry A. Divins, Frank D. Mendicino, John P. Smith, Marco Veri
Abstract: A method for growing a nitride crystal and a crystalline composition selected from one of AlN, InGaN, AlGaInN, InGaN, and AlGaNInN is provided. The composition comprises a true single crystal, grown from a single nucleus, at least 1 mm in diameter, free of lateral strain and tilt boundaries, with a dislocation density less than about 104 cm?2.
Type:
Grant
Filed:
October 5, 2007
Date of Patent:
January 5, 2010
Assignee:
Momentive Performance Materials Inc.
Inventors:
Steven Alfred Tysoe, Dong-Sil Park, John Thomas Leman, Mark Philip D'Evelyn, Kristi Jean Narang, Huicong Hong
Abstract: A crystalline composition is provided. The crystalline composition may include gallium and nitrogen; and the crystalline composition may have an infrared absorption peak at about 3175 cm?1, with an absorbance per unit thickness of greater than about 0.01 cm?1.
Type:
Grant
Filed:
January 9, 2007
Date of Patent:
December 29, 2009
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: This invention describes novel chemical compounds whose structures are hybrids between sulfur-containing and non-sulfur-containing silanes wherein the two types of silanes are linked by siloxane bonds. The invention includes methods of preparation for the hybrid silanes as well as their use in filled rubbers as coupling agents. The hybrid silanes described are unique in that a certain amount of water in their preparation leads to superior performance in their intended application, and that they can thus be produced more efficiently and safely than coupling agents currently used in the art, from readily available hydrated raw materials.
Abstract: There is provided herein a rubber composition comprising (a) at least one rubber component; (b) at least one silane-reactive filler; (c) optionally, at least one activating agent and, (d) at least one silane of the general Formula (1): [X1X2X3Si—]d(G)a[—Y—(CR3-e-Ze)b]c ??(1) wherein X1 is selected hydrolyzable groups; X2 and X3 are independently hydrocarbons or selected hydrolyzable groups; G is a hydrocarbon group of from 1 to 18 carbon atoms that can optionally contain at least one heteroatom selected from the group consisting of oxygen, sulfur, phosphous and silicon; each Y can independently be an unsaturated group; each Z can independently be a halogen atom; and, each R can independently be hydrogen, alkyl, alkenyl, aryl or aralkyl. There is also provided a process of preparing a rubber composition comprising mixing (a), (b), optionally (c), and (d). There are also provided articles (e.g., tires) made from the rubber composition.
Type:
Grant
Filed:
February 8, 2007
Date of Patent:
December 1, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Ping Jiang, Chris Hartshorn, Eric R. Pohl
Abstract: A capsule for containing at least one reactant and a supercritical fluid in a substantially air-free environment under high pressure, high temperature processing conditions. The capsule includes a closed end, at least one wall adjoining the closed end and extending from the closed end; and a sealed end adjoining the at least one wall opposite the closed end. The at least one wall, closed end, and sealed end define a chamber therein for containing the reactant and a solvent that becomes a supercritical fluid at high temperatures and high pressures. The capsule is formed from a deformable material and is fluid impermeable and chemically inert with respect to the reactant and the supercritical fluid under processing conditions, which are generally above 5 kbar and 550° C. and, preferably, at pressures between 5 kbar and 80 kbar and temperatures between 550 ° C. and about 1500° C.
Type:
Grant
Filed:
December 10, 2004
Date of Patent:
December 1, 2009
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark Philip D'Evelyn, Kristi Jean Narang, Robert Arthur Giddings, Steven Alfred Tysoe, John William Lucek, Suresh Shankarappa Vagarali, Robert Vincent Leonelli, Jr., Joel Rice Dysart