Patents Assigned to Performance Materials, Inc.
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Patent number: 7429672Abstract: This invention discloses a process to improve reaction stability in the Direct Synthesis of trialkoxysilanes. The process is particularly effective in the Direct Synthesis of triethoxysilane and its higher alkyl cognates providing improved triethoxysilane yields.Type: GrantFiled: June 9, 2006Date of Patent: September 30, 2008Assignee: Momentive Performance Materials Inc.Inventors: Kenrick M. Lewis, Rudolph A. Cameron, Karen Ritscher, legal representative, James S. Ritscher
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Patent number: 7420143Abstract: An article comprising a graphite part coated with a pyrolytic graphite (pG) for increased mechanical strength of at least 25% over an uncoated graphite part. In connector applications for use in a semiconductor processing assembly such as a heater, the pG coated component is overcoated with at least a protective layer of an electrically insulating material, and wherein part of the pG coated graphite part is exposed (uncoated with the protective layer) for providing electrical connections to the assembly.Type: GrantFiled: October 12, 2006Date of Patent: September 2, 2008Assignee: Momentive Performance Materials Inc.Inventors: Douglas Alan Longworth, Timothy J. Heil
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Patent number: 7417105Abstract: A crosslinkable silane-terminated polymer is provided which includes the reaction product of an isocyanate-terminated prepolymer and a silane possessing a plurality of hydrolysable sites and at least one active hydrogen-containing group which is reactive for isocyanate, the silane upon hydrolysis 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.Type: GrantFiled: December 1, 2005Date of Patent: August 26, 2008Assignee: Momentive Performance Materials Inc.Inventors: Shayne J. Landon, Bruce A. Waldman
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Patent number: 7405246Abstract: A cure system including a compatiblized and passivated refectory solid dispersed within a low temperature liquid curing agent is provided. An adhesive system including the cure system is provided, and an associated method. A device including the cured adhesive system is provided.Type: GrantFiled: June 23, 2005Date of Patent: July 29, 2008Assignee: Momentive Performance Materials Inc.Inventor: Slawomir Rubinsztajn
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Patent number: 7405259Abstract: A silylated polymer contains repeating units derived from butadiene. The polymer when partially silylated is especially useful for pressure sensitive adhesives where it imparts superior solvent resistance performance thereto.Type: GrantFiled: December 8, 2005Date of Patent: July 29, 2008Assignee: Momentive Performance Materials Inc.Inventors: Robert L. Frye, Richard P. Eckberg, Roy M. Griswold
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Patent number: 7399350Abstract: The present invention relates to coating and printing ink compositions possessing silicone surfactants compositions comprising fluorine-free organomodified disiloxanes which are resistant to hydrolysis between a pH of about 3 to a pH of about 12. The coatings and printing ink composition of the present invention exhibit enhanced wetting, flow and leveling properties.Type: GrantFiled: October 17, 2006Date of Patent: July 15, 2008Assignee: Momentive Performance Materials Inc.Inventors: Suresh K. Rajaraman, Alain Lejeune, Alexander Borovik, George A. Policello, Mark D. Leatherman
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Publication number: 20080167269Abstract: The present invention provides for a composition comprising a silane having the formula: (R1)(R2)(R3)Si—R4—Si(R5)(R6)(R7) wherein R1, R2, R3, R5, and R6 are each independently selected from the group consisting of 1 to 6 monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 7 to 10 carbons containing an aryl group; R4 is a hydrocarbon group of 1 to 3 carbons; R7 comprises an anionic, cationic or zwitterionic substituent. The silanes of the present invention exhibit resistance to hydrolysis over a wide pH range.Type: ApplicationFiled: December 10, 2007Publication date: July 10, 2008Applicant: Momentive Performance Materials Inc.Inventors: Mark D. Leatherman, George A. Policello, Wenqing N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Zijun Xia
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Patent number: 7397648Abstract: An electrostatic chuck comprises a main body with a mounting surface and an opposed surface facing away from the mounting surface. At least one chucking electrode extends along the mounting surface of the main body and a first heater layer extends along the opposed surface of the main body. The electrostatic chuck can be used to heat and electrostatic ally attract a work piece, such as a wafer, to a work piece support surface during various processing techniques.Type: GrantFiled: November 10, 2004Date of Patent: July 8, 2008Assignee: Momentive Performance Materials Inc.Inventors: Akinobu Otaka, Kazuyoshi Yamazaki
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Patent number: 7388049Abstract: A composition comprising the reaction products of MaMHbMEcDdDHeDEfTgTHhTEiQj where M=R1R2R3SiO1/2; MH=R4R5H SiO1/2; ME=R6R7RESiO1/2; D=R8R9SiO2/2; DH=R10HSiO2/2; DE=R11RESiO2/2; T=R12SiO3/2; TH=HSiO3/2; TE=RESiO3/2; and Q=SiO4/2; where R1, R2, R3, R8, R9 and R12 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms; R4, R5 and R10 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or hydrogen; R6, R7, R11 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or RE; each RE is independently a monovalent hydrocarbon radical containing one or more oxirane moieties having from one to sixty carbon atoms; the stoichiometric subscripts a, b, c, d, e, f, g, h, i, and j are either zero or positive subject to the following limitations: a+b+c>1;b+e+h>1;c+f+i>1;b+e+h>c+f+i. In a preferred embodiment the reaction product of the present invention is a polyether siloxane copolymer network.Type: GrantFiled: October 28, 2005Date of Patent: June 17, 2008Assignee: Momentive Performance Materials Inc.Inventor: Michael Joseph O'Brien
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Patent number: 7381769Abstract: A composition comprising the reaction products of MaMHbMEcDdDHeDEfTgTHhTEiQj where M=R1R2R3SiO1/2; MH=R4R5HSiO1/2; ME=R6R7RESiO1/2; D=R8R9SiO2/2; DH=R10HSiO2/2; DE=R11RESiO2/2; T=R12SiO3/2; TH=HSiO3/2; TE=RESiO3/2; and Q=SiO4/2; where R1, R2, R3, R8, R9 and R12 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms; R4, R5 and R10 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or hydrogen; R6, R7, R11 are independently monovalent hydrocarbon radicals having from one to sixty carbon atoms or RE; each RE is independently a monovalent hydrocarbon radical containing one or more oxirane moieties having from one to sixty carbon atoms; the stoichiometric subscripts a, b, c, d, e, f, g, h, i, and j are either zero or positive subject to the following limitations: a+b+c>1; b+e+h>1; c+f+i>1; b+e+h>c+f+i; and when d+e+f+g+h+i+j=0, a+b+c=2 wherein said reaction product is prepared in the presence of a surfactant.Type: GrantFiled: April 27, 2005Date of Patent: June 3, 2008Assignee: Momentive Performance Materials Inc.Inventor: Michael Joseph O'Brien
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Patent number: 7368490Abstract: A rubber comprising a silane, a filler and at least one rubber selected from the group consisting of solution polymerization-derived styrene-butadiene rubber (S-SBR) having from about 10 to about 80 percent vinyl content; (ii) emulsion polymerization-derived rubber; and (iii) butadiene rubber having from about 5 to about 99 percent cis content and from about 0 to about 60 percent vinyl content.Type: GrantFiled: November 28, 2005Date of Patent: May 6, 2008Assignee: Momentive Performance Materials Inc.Inventors: Ben Patel, Brennan Smith
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Patent number: 7368015Abstract: An apparatus including a crucible, an energy source, and a controller is provided. The crucible may be sealed to a nitrogen-containing gas, and may be chemically inert to at least ammonia at a temperature in a range of about 400 degrees Celsius to about 2500 degrees Celsius. The energy source may supply thermal energy to the crucible. The controller may control the energy source to selectively direct sufficient thermal energy to a predefined first volume within the crucible to attain and maintain a temperature in the first volume to be in a range of from about 400 degrees Celsius to about 2500 degrees Celsius. The thermal energy may be sufficient to initiate, sustain, or both initiate and sustain growth of a crystal in the first volume. The first temperature in the first volume may be controllable separately from a second temperature in another volume within the crucible. The first temperature and the second temperature differ from each other. Associated methods are provided.Type: GrantFiled: October 13, 2005Date of Patent: May 6, 2008Assignee: Momentive Performance Materials Inc.Inventors: Mark Philip D'Evelyn, Dong-Sil Park, Victor Lienkong Lou, Thomas Francis McNulty, Huicong Hong
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Patent number: 7368584Abstract: 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 the composition of these silanes.Type: GrantFiled: August 14, 2006Date of Patent: May 6, 2008Assignee: Momentive Performance Materials Inc.Inventors: Antonio Chaves, Eric R. Pohl, Christopher M. Hartshorn
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Patent number: 7365145Abstract: The present invention relates to moisture-curable silylated polymers having unreacted or “free” hydroxyl groups prior to cure with improved physical properties, lower viscosity and lower cost, suitable for preparing coatings, adhesives and sealants.Type: GrantFiled: September 14, 2005Date of Patent: April 29, 2008Assignee: Momentive Performance Materials Inc.Inventors: Yurun Yang, Shen Min, Misty Huang
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Process for the recovery of alkoxysilanes obtained from the direct reaction of silicon with alkanols
Patent number: 7365220Abstract: A process is provided for separating a mixture of alkoxysilanes and alkanol, e.g., the crude product effluent of the Direct Reaction of silicon metal with alkanol, which comprises: a) introducing a mixture of alkoxysilane(s) and alkanol to a separation unit possessing a separation membrane having a first surface and an opposing second surface; b) contacting the mixture of alkoxysilane(s) and alkanol with the first surface of the separation membrane whereby one or more components of the mixture selectively absorb into the first surface and permeate therethrough to the second surface under the influence of a concentration gradient across the membrane thereby separating the mixture into an alkanol-enriched permeate fraction and an alkanol-deficient retentate fraction or an alkoxysilane-enriched permeate fraction and an alkoxysilane-deficient retentate fraction; and, c) recovering the permeate fraction.Type: GrantFiled: September 29, 2005Date of Patent: April 29, 2008Assignee: Momentive Performance Materials Inc.Inventors: Kenrick Martin Lewis, Hua Wang -
Patent number: 7364624Abstract: A wafer processing device or apparatus, i.e., a heater or an electrostatic chuck, comprises a planar support platen, a support shaft having centrally located bore, and a pair of electrical conductors located in the shaft. In one embodiment, the electrical conductors are concentrically located within the bore of the shaft, with the first electrical lead being in the form of a pyrolytic graphite rod and separated from the outer second graphite electrical lead by means of a pyrolytic boron nitride (pBN) coating. In a second embodiment, the support platen and the support shaft are formed from a single unitary body of graphite. In yet another embodiment of the device of the invention, the connection posts comprise a carbon fiber composite and the exposed ends of the electrical connectors are coated with a protective ceramic paste for extended life in operations.Type: GrantFiled: January 16, 2004Date of Patent: April 29, 2008Assignee: Momentive Performance Materials Inc.Inventors: John Thomas Mariner, Timothy J. Hejl, Douglas Alan Longworth, Jeffrey Lennartz, Ajit Sane, Andrew John Macey, Jon Leist, Thomas E. Devan
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Patent number: 7363776Abstract: A silica deposition tube is fused in a deuterium (D2) gas atmosphere and optionally baked in a deuterium (D2) gas atmosphere to substantially reduce the hydrogen content in the tube for decreased fiber attenuation. Alternatively, raw silica material is pre-treated in D2 gas followed by fusing of the raw silica tube in a D2 gas environment.Type: GrantFiled: October 4, 2004Date of Patent: April 29, 2008Assignee: Momentive Performance Materials Inc.Inventors: Larry Q. Zeng, Victor L. Lou, Frederic F. Ahlgren, Anil Raj Duggal
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Patent number: 7361722Abstract: A method of producing silicone copolymers having fluorinated repeat units (D units) wherein the fluorine content of the copolymer is above about thirty-seven (37) weight percent.Type: GrantFiled: November 14, 2005Date of Patent: April 22, 2008Assignee: Momentive Performance Materials Inc.Inventor: John S. Razzano
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Patent number: 7341702Abstract: A process for producing boron nitride of high purity and high thermal conductivity, wherein a oxygen-containing boron compound is reacted with a nitrogen-containing source in the presence of a dopant at a temperature of at least 1000° C. for at least one hour, and wherein the dopant forms metal borate impurities with a vaporizing temperature that is lower than the highest processing temperature in the process.Type: GrantFiled: November 3, 2005Date of Patent: March 11, 2008Assignee: Momentive Performance Materials Inc.Inventors: Donald William Pultz, Jr., Laurence Maniccia, Chandrashekar Raman, Anand Murugaiah
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Patent number: 7339068Abstract: 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: GrantFiled: October 9, 2001Date of Patent: March 4, 2008Assignee: Momentive Performance Materials Inc.Inventors: Kenrick M. Lewis, Regina Nelson Eng, Sabrina R. Cromer, Abellard T. Mereigh, Chi-Lin O'Young
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Patent number: 5150841Abstract: A battery operated hand-held dispenser which operates efficiently at lower power levels than prior art devices. The dispenser as included therein has spray, foam or stream, dispensing capabilities coupled with pump mechanisms, vent mechanisms and positive closures.Type: GrantFiled: May 23, 1991Date of Patent: September 29, 1992Assignee: DowBrands Inc.Inventors: Scott A. Silvenis, Paul B. Monaghan, Arthur A. Massucco, Richard H. Spencer, William R. Gagne