Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups, in conjunction with pendant polyalkylene oxide substituents on the D group render the surfactant resistant to hydrolysis under either basic or acidic conditions outside the pH range of 6.0 to 7.5. The compositions are useful in agricultural, household and cosmetic applications.
Type:
Application
Filed:
June 22, 2011
Publication date:
October 13, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
George A. Policello, Mark D. Leathermani, Wenqing Peng, Suresh K. Rajaraman, Sophia Xia
Abstract: A composition for coating sliding or rolling or fretting or impacting members is formed by preparing a composite powder of TiB2 and BN, with a TiB2 to BN ratio ranging from 1:7 to 20:1, and a metallic matrix selected from the group consisting of nickel, chromium, iron, cobalt, aluminum, tungsten, carbon and alloys thereof.
Abstract: The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a polyorganosiloxane demulsifier into an emulsion comprising an oil phase and an aqueous phase. The invention also relates to compositions containing polyorganosiloxane demulsifier and the water and oil phases of an emulsion.
Type:
Application
Filed:
June 14, 2011
Publication date:
October 6, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
Anubhav Saxena, Monjit Phukan, Senthilkumar U, Ian Procter, Sigfredo Gonzalez, Kalman Koczo, Sabine Azouani, Vikram Kumar
Abstract: A moisture crosslinkable thermoplastic composition is produced by a process of grafting an unsaturated silane of the formula: G1R1SiZ where G1 is vinyl, R1 is methyl and Z is a divalent hydrolyzable group under reactive mechanical working conditions and in the presence of at least two peroxides and subsequently is converted into a crosslinked thermoplastic composition by exposure to moisture in the presence of a crosslinking catalyst.
Abstract: The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a polyorganosiloxane demulsifier into an emulsion comprising an oil phase and an aqueous phase. The invention also relates to compositions containing polyorganosiloxane demulsifier and the water and oil phases of an emulsion.
Abstract: The present invention is directed to a composition having: (A) at least one silylated polyurethane resin containing polydiorganosiloxane; and, (B) at least one silylated polyurethane resin A.
Type:
Application
Filed:
March 29, 2010
Publication date:
September 29, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
Narayana Padmanabha Iyer, Anantharaman Dhanabalan, Jos Delis, Shayne Joseph Landon, Remy Gauthier
Abstract: There is provided herein a composition comprising: (A) a silanol and/orhydrocarbon-terminated polyorganosiloxane in an amount of from about 30 weight percent to about 90 weight percent; and, (B) a moisture curable silylated polyurethane resin in an amount of from about 10 weight percent to about 70 weight percent. There is also provided herein in another embodiment a two part sealant composition wherein the first part comprises: (A) a silanol and/or hydrocarbon-terminated polyorganosiloxane in an amount of from about 15 weight percent to about 60 weight percent, (B) a moisture curable silylated polyurethane resin in an amount of from about 2 weight percent to about 32 weight percent, and (C) a filler, said weight percents being based on the weight of the first part.
Type:
Application
Filed:
March 29, 2010
Publication date:
September 29, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
Indumathi Ramakrishnan, Shayne Joseph Landon, David A. Williams, Anantharaman Dhanabalan
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:
November 15, 2005
Date of Patent:
September 13, 2011
Assignee:
Momentive Performance Materials Inc.
Inventors:
Judith Kerschner, Gerald J. Murphy, John Nicholson
Abstract: Described are diol-derived organofunctional silanes in which the silanes contain cyclic and bridged alkoxy groups derived from hydrocarbon-based diols and methods for the preparation of the silanes. Also described are rubber compositions containing the diol-derived organofunctional silanes, methods for the preparation of the rubber compositions and articles of manufacture containing the rubber compositions, in particular, automotive tires and components thereof.
Type:
Application
Filed:
May 11, 2011
Publication date:
September 1, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Richard W. Cruse, Eric R. Pohl
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. Also described is a process for the preparation of aqueous thiocarboxylate salt from a sulfide and/or hydrosulfide and an acid chloride and/or acid anhydride.
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:
August 30, 2011
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
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 the processes of making a composition of these silanes.
Type:
Grant
Filed:
August 14, 2006
Date of Patent:
August 30, 2011
Assignee:
Momentive Performance Materials Inc.
Inventors:
Antonio Chaves, Eric R. Pohl, Christopher M. Hartshorn
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. Also described is a process for the preparation of aqueous thiocarboxylate salt from a sulfide and/or hydrosulfide and an acid chloride and/or acid anhydride.
Abstract: The invention relates to architectural elements possessing at least two components bonded together employing a silicone rubber composition possessing rapid development of strength and deep-section cure, 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.
Type:
Grant
Filed:
March 27, 2007
Date of Patent:
August 9, 2011
Assignee:
Momentive Performance Materials Inc.
Inventors:
Indumathi Ramakrishnan, Edward Joseph Nesakumar
Abstract: Epoxysilanes are provided which contain at least one epoxy group, at least one hydrolyzable silyl group and one or more linkages containing a carbonyl group bonded to heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen with at least one such heteroatom being nitrogen, there being no such linkage in which both an epoxy group and hydrolyzable silyl group are directly or indirectly bonded to the same nitrogen heteroatom in the linkage.
Type:
Grant
Filed:
March 9, 2007
Date of Patent:
August 2, 2011
Assignee:
Momentive Performance Materials Inc.
Inventors:
Shiu-Chin H. Su, Kendall L. Guyer, Eric R. Pohl, Alexander S. Borovik
Abstract: The present invention provides a non-crosslinked silicon polyether composition comprising at least one compound with the following formula; [(R1O)(C2H4O)a(C3H6O)b(C4H8O)c]dR2(R3)e wherein R1 is a monovalent radical defined as MgMAhMBiMHjMEkDlDHmDEnToTHpTEqQr M=R4R5R6SiO1/2; MA=R7R8R9SiR10; MB=[(R11R12R13Si)sR14]tSi(R15)u(R16)vR17 MH=R18Si(R19)(R20)O1/2; ME=R21R22RESiO1/2; D=R23R24SiO2/2; DH=R25Si(R26)O2/2; DE=R27RESiO2/2; T=R28SiO3/2; TH=R29SiO3/2; TE=RESiO2/2; and Q=SiO4/2; R2 and R14 are polyvalent linear or branched; R3 is —(C2H4O)(C3H6O)b(C4H8O)c—R30 or R1; R30 is a monovalent saturated; R4, R5, R6, R7, R8, R9, R11, R12, R13, R15, R16, R19, R20, R21, R22, R23, R24, R26, R27, and, R28 are monovalent hydrocarbon radicals having from 1 to about 10 carbons; R10, R17, R18, R25 and R29 are divalent hydrocarbon radicals having 1 to about 25 carbons; RE is —R32—(C2H4O)a(C3H6O)b(C4H8O)c—R33; R32 is a divalent hydrocarbon radical having 1 to about 60 carbons; R33 is a monovalent hydrocarbon radical having
Type:
Application
Filed:
January 27, 2010
Publication date:
July 28, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
Benjamin FALK, Kalman KOCZO, Antonio PALUMBO
Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups in conjunction with a pendant polyalkylene oxide substituents on the D group to render the surfactant resistant to hydrolysis under either basic or acidic conditions.
Type:
Application
Filed:
April 6, 2011
Publication date:
July 28, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
George A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Zijun Xia
Abstract: The present invention provides for a demulsifying composition comprising a blend of a) an emulsion; and b) a demulsifying-effective amount of a non-crosslinked silicon polyether. The present invention also provides for a method for separating emulsions using the demulsifying composition discussed.
Type:
Application
Filed:
January 27, 2010
Publication date:
July 28, 2011
Applicant:
Momentive Performance Materials Inc.
Inventors:
Benjamin Falk, Kalman Koczo, Monjit Phukan, Antonio Palumbo, Anubhav Saxena
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: A low viscosity filler boron nitride agglomerate particles having a generally spherical shape bound together by an organic binder and to a process for producing a BN powder composition of spherically shaped boron nitride agglomerated particles having a treated surface layer which controls its viscosity.
Type:
Grant
Filed:
January 6, 2006
Date of Patent:
July 12, 2011
Assignee:
Momentive Performance Materials Inc.
Inventors:
David Lodyga, Joseph W. Tereshko, Ajit Sane, Thomas Fox, Paulo Meneghetti