Abstract: There is provided herein a composition comprising a silicone copolymer of the general formula (I) MaMEcDdDEeTfTEgQh where M=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D=R6R7SiO2/2; DE=R8RESiO2/2; T=R9RESiO2/2; T=R9SiO3/2; TE=RESiO2/2; and Q=SiO4/2; where R1, R2, R3, R4, R5, R6, R7, R8, and R9 are each independently selected from the group of monovalent hydrocarbon radicals optionally containing heteroatoms, carbonyl groups, and hydroxyl groups, each independently having from about 1 to about 20 carbon atoms; RE is a monovalent radical defined as: —R10O—(C2H4O)h(C3H6O)i(C4H8O)i—R11 or —R12 with the provision that the copolymer must contain at least one RE group; R10 is a linear or branched divalent hydrocarbon radical containing from 3 to about 10 carbon atoms; R11 is H or —C(?O)CH3 or a monovalent saturated or unsaturated hydrocarbon radical, optionally containing heteroatoms and hydroxyl groups, containing from 1 to about 30 carbon atoms; R12 is a hydrocarbon radical, containing from 2 to about 30 carbon atoms and at le
Abstract: The present invention provides a crosslinkable polysiloxane-containing composition and a process for treating a textile with the composition whereby desirable properties, such as water repellency and durability, are enhanced.
Type:
Grant
Filed:
November 5, 2010
Date of Patent:
December 11, 2012
Assignee:
Momentive Performance Materials Inc.
Inventors:
Wanchao Jiang, Yong Long, Shingo Tabei, Uche Kelechi Anyanwu, Mark D. Leatherman, Zhipeng Zheng
Abstract: The present invention provides cosmetic products, such as makeup cosmetics and skin care cosmetics, which have a good water-proof and perspiration resistance and an excellent use feel, such as spreadability, at the time of application and long-wearing capabilities. Specifically, a cosmetic product containing a silicone resin, composed of (A) and (B) described below: R3SiO1/2 unit??(A) RSiO3/2 unit??(B) at a proportion of (A):(B) being 1:1 to 1:7 and having a softening point of 50 to 110° C., wherein R represents a substituted or unsubstituted monovalent hydrocarbon group.
Type:
Grant
Filed:
April 30, 2009
Date of Patent:
December 11, 2012
Assignee:
Momentive Performance Materials Japan LLC
Abstract: Disclosed herein is a process for the production of a polysiloxane-polyorgano block copolymer. The process includes reacting a reaction mixture containing (a) an ester-functional polydiorganosiloxane and (b) a bisphenolic compound or a bisphenolic compound oligomer. This process has the advantage of yielding block copolymers with controlled block structures and avoiding the impurities that may be carried over from the conventional hydroxyaryloxy-terminated-polydiorganosiloxanes. Also disclosed are ester-functional polysiloxanes and polysiloxane-polyorgano block copolymers prepared by the process of the invention. These copolymers exhibit advantageous properties such as improved low temperature properties, improved rheological properties during molding, improved clarity, chemical, scratch resistance, and improved electrical insulation properties.
Abstract: An adjuvant composition is provided which comprises: (a) at least one water-soluble electrolyte; (b) at least one electrolyte-tolerant surfactant; (c) antifoam component which is at least one mixture selected from the group consisting of (1) at least one branched silicone resin (i), at least one silicone fluid (ii), at least one particulate metal oxide (iii) and, optionally, at least one catalyst (iv) for catalyzing the condensation of siloxy groups, (2) the equilibration reaction product of mixture (1), and (3) mixture (1) in which at least a portion of particulate metal oxide (iii) is pre-hydrophobized; (d) optionally, at least one additional bioinert material; and, (e) water.
Type:
Application
Filed:
May 9, 2011
Publication date:
November 15, 2012
Applicant:
Momentive Performance Materials Inc.
Inventors:
William L. Brown, Kalman Koczo, George A. Policello
Abstract: The invention concerns polysiloxane compounds as W/O-emulsifiers, in textile softeners, antifoams, foam stabilizers and agriculture chemicals, in particular as W/O-emulsifiers for cosmetic uses.
Type:
Application
Filed:
November 24, 2010
Publication date:
November 15, 2012
Applicant:
Momentive-Performance Materials GmbH
Inventors:
Roland Wagner, Walter Simon, Martin Kropfgans, Sabine Nienstedt, Albert Schnering, Katharina Streicher, Karl-Heinz Sockel, Sebastian Maass
Abstract: This organic electroluminescent element sealing composition contains an addition reaction curing type silicone composition which is liquid at normal temperature and has a curing temperature of 100 degrees C. or below and a moisture content of 400 ppm or less. The addition reaction curing type silicone composition contains (A) polyorganosiloxane having an average of 0.2 to 5 alkenyl groups bonded to silicon atoms in one molecule, (B) polyorganohydrogensiloxane having at least two or more hydrogen atoms bonded to silicon atoms in one molecule, and (C) a platinum-based catalyst. The organic electroluminescent element sealing composition can prevent deterioration of the organic electroluminescent element and can provide the organic light-emitting device having a good light-emitting property for a long period.
Type:
Grant
Filed:
December 17, 2010
Date of Patent:
November 6, 2012
Assignee:
Momentive Performance Materials Japan LLC
Abstract: The present invention relates to a process for recovery of a precious metal catalyst from an organosilicon product-containing liquid reaction medium containing precious metal catalyst.
Abstract: A process for crosslinking polymers employs a silane crosslinker which, upon hydrolysis, produces a reduced quantity of volatile organic compound.
Abstract: A method of making nanosized copper (I) compounds, in particular, copper (I) halides, pseudohalides, and cyanocuprate complexes, in reverse micelles or microemulsions is disclosed herein. The method of the invention comprises (a) dissolving a copper (II) compound in the polar phase of a first reverse micelle or microemulsion, (b) dissolving a copper (II) to copper (I) reducing agent or a pseudohalide salt in the polar phase of a second sample of the same reverse micelle or microemulsion, (c) mixing the two reverse micelle/microemulsions samples to form nanometer sized copper (I) compounds and (d) recovering said nanometer sized copper (I) compounds. The present invention is also directed to the resultant nanosized copper (I) compounds, such as copper (I) chloride, copper (I) cyanide, and potassium cyanocuprate complexes having an average particle size of about 0.1 to 600 nanometers.
Abstract: A silicone composition for sealing a light emitting element includes: (A) a vinyl group-containing organopolysiloxane having a three-dimensional network structure represented by an average unit formula: (SiO4/2)a(ViR2SiO1/2)b(R3SiO1/2)c (where Vi represents a vinyl group, R's are identical or different substituted or unsubstituted monovalent hydrocarbon groups other than alkenyl groups, and a, b, and c are positive numbers satisfying that a/(a+b+c) is 0.2 to 0.6 and b/(a+b+c) is 0.001 to 0.2); (B) an organohydrogenpolysiloxane which has at least two hydrogen atoms, each hydrogen atom being bonded to a silicon atom per molecule, the organohydrogenpolysiloxane being contained in such an amount that an amount of a hydrogen atom bonded to a silicon atom is 0.3 to 3.0 mol per 1 mol of a vinyl group bonded to a silicon atom in the component (A); and (C) a hydrosilylation catalyst (catalytic amount), wherein a coefficient of linear expansion of the composition after curing is 10×10?6 to 290×10?6/° C.
Type:
Grant
Filed:
July 22, 2005
Date of Patent:
October 23, 2012
Assignee:
Momentive Performance Materials Japan LLC
Abstract: A moisture-curable resin composition comprising (a) at least one moisture-curable polymer having at least one hydrolysable silyl group; (b) at least one hydrocarbylalkoxysilane; and (c) at least one silane adhesion promoter containing a glycidoxy group. The composition may also contain additives including a catalyst for catalyzing the reaction between the moisture-curable polymer having at least one hydrolysable silyl group (a) with water under curing conditions, a filler, a plasticizer, and combinations thereof. The moisture-curable resin composition is useful in the production of adhesives, sealants and coatings for use in primerless concrete applications.
Abstract: There is provided novel mono-acrylate functionalized siloxane monomer containing carbosiloxane linkage for improved hydrolysis resistance. This invention also provides copolymers produced using these monomers and their use in various applications.
Type:
Application
Filed:
March 21, 2011
Publication date:
September 27, 2012
Applicant:
Momentive Performance Materials Inc.
Inventors:
Anubhav Saxena, Umpathy Senthilkumar, Kenrick M. Lewis
Abstract: There is provided new mono-(meth)acrylate functionalized silicone monomers containing carbosiloxane linkage for improved hydrolysis resistance, useful in making water absorbing silicone-hydrogel films for contact lens applications. This invention also provides homo-polymers and copolymers made from the mono-(meth)acrylate functionalized hydrophilic silicone monomers described herein. Also provided is a process for producing the monomers and polymers described herein and contact lenses produced from the same.
Type:
Application
Filed:
March 21, 2011
Publication date:
September 27, 2012
Applicant:
Momentive Performance Materials Inc.
Inventors:
Anubhav Saxena, Umapathy Senthilkumar, Kenrick M. Lewis
Abstract: The present invention provides for a composition comprising a siloxane having the formula: M1D M2 wherein M1=(R1)(R2)(R3)SiO1/2; M2=(R4)(R5)(R6)SiO1/2 and D=(R7)(Z)SiO2/2 where R1, R2, R3 R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group; Z is a pendant hydrophilic ionic group selected from the group consisting of R8—RA, R9 Rc and R10—RZ; RA being an anionic substituent, Rc a cationic substituent or Rz a zwitterionic substituent on the D group wherein the composition is resistant to hydrolysis under either basic or acidic conditions.
Type:
Grant
Filed:
December 26, 2008
Date of Patent:
September 11, 2012
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mark D. Leatherman, George A. Policello, Wenging N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Xia Zijun
Abstract: A particulate-filled rubber composition contains at least one silane-reactive particulate filler and a mixture of at least one blocked mercaptosilane coupling agent possessing two thioacyl groups and at least one blocked mercaptosilane possessing a single thioacyl group.
Abstract: This invention relates to novel sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These novel silanes can be carried on organic and inorganic fillers. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.
Type:
Application
Filed:
April 27, 2012
Publication date:
September 6, 2012
Applicant:
Momentive Performance Materials Inc.
Inventors:
Richard W. CRUSE, W. Michael YORK, Eric R. POHL, Antonio CHAVES, Prashant JOSHI
Abstract: The invention relates to a high thermal efficiency, insulated glass unit structure sealed with a cured composition containing, inter alia, diorganopolysiloxane(s) and organic nanoclay(s), the cured composition exhibiting low permeability to gas(es).
Type:
Grant
Filed:
January 9, 2006
Date of Patent:
September 4, 2012
Assignee:
Momentive Performance Materials Inc.
Inventors:
Shayne J. Landon, David A. Williams, Vikram Kumar, Edward J. Nesakumar, Indumathi Ramakrishnan
Abstract: Disclosed herein are novel copolycarbonates containing repeating units A and B respectively of the formulae: (A)—[R1OC(?O)O]—, and (B)—[(R2O)n-C(?O)—O]—, wherein the molar ratio of units (A) to units (B) is in the range of from about 9:1 to about 1:9, and wherein R1 is a divalent C8 to C12 alicyclic group, and R2 is ethylene or propylene, and n is an integer ranging from 4 to 40. Also disclosed are silicone hardcoat compositions containing the copolycarbonates and their derivatives. Upon cure, these silicone hardcoat compositions exhibit improved flexibility as compared to that of the conventional hardcoats while at the same time maintain the abrasion resistance of conventional silicone hardcoats.
Type:
Application
Filed:
February 28, 2011
Publication date:
August 30, 2012
Applicant:
Momentive Performance Materials Inc.
Inventors:
Christoph Hilgers, Anantharaman Dhanabalan, Narayana Padmanabha Iyer, Shayne Joseph Landon
Abstract: Disclosed herein is a primer composition comprising an inorganic UV absorbing agent and a polymer selected from (i) a copolycarbonate, and (ii) a polyurethane obtained by reaction of a polyisocyanate and a copolycarbonate diol. Also disclosed is a coated article comprising a polymeric substrate, a primer layer disposed on at least one surface of said substrate, and an abrasion-resistant layer disposed on said primer layer, where the primer layer is made from the primer composition of the invention.
Type:
Application
Filed:
February 28, 2011
Publication date:
August 30, 2012
Applicant:
Momentive Performance Materials Inc.
Inventors:
Honnaiah Mallesha, Anantharaman Dhanabalan, Robert F. Hayes, Narayana Padmanabha Iyer, Marc Schaepkens