Patents Assigned to Momentive Performance Materials Inc.
  • Moisture curable organopolysiloxane composition
    Patent number: 9527959
    Abstract: The present invention provides curable compositions comprising non-tin metal catalysts that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides bismuth(III) sulfonate complexes that are particularly suitable as replacements for organotin in sealant and RTV formulations. In one embodiment, the present invention provides bismuth (III) camphorsulfonate and bismuth(III) methanesulfonate complexes. Further, these bismuth(III) sulfonate complexes are comparable or superior to organotin such as DBTDL, exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions, and provide good adhesion and storage stability.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 27, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventor: Christopher Byrne
  • Moisture curable organopolysiloxane compositions
    Patent number: 9523002
    Abstract: The present invention provides curable compositions comprising non-Sn organo-metal catalysts that accelerate the condensation curing of moisture curable silicones/non-silicones. In particular, the present invention provides La(III) complexes that are particularly suitable as replacements for organotin for sealant and RTV formulations. The La(III) complexes are comparable to organotin such as DBTDL and exhibit certain behavior in the presence of components that allow for tuning or adjusting the cure characteristics of the present compositions and provide good adhesion and storage stability.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: December 20, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Sumi Dinkar, Anantharaman Dhanabalan
  • Ester-functional polysiloxanes and copolymers made therefrom
    Patent number: 9518182
    Abstract: There is described a polysiloxane having the structure: wherein R1, R2, and R3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, R4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen, R5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group, R6 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group, x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50. The polysiloxane is used to make various copolymers and polymer blends. A variety of articles can be made using the polysiloxane described as a polymer blend or copolymer.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 13, 2016
    Assignee: Momentive Performance Materials, Inc.
    Inventors: Narayana Padmanabha Iyer, Indumathi Ramakrishnan, Anuj Mittal, Roy Rojas-Wahl, Samim Alam
  • Low viscosity polyorganosiloxanes comprising quaternary ammonium groups, methods for the production and the use thereof (II)
    Patent number: 9512275
    Abstract: Low viscosity polyorganosiloxanes comprising a) at least one polyorganosiloxane group, b) at least one quaternary ammonium group, c) at least one terminal group, selected from the groups consisting of: c1) at least one terminal mono functional polyorganosiloxane group, c2) at least one terminal ester group, and c3) at least one terminal alkyl-terminated poly ether group, compositions thereof, aqueous emulsions thereof, methods of the manufacture thereof and their use for the modification of surfaces of substrates.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: December 6, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Roland Wagner, Karl-Heinz Stachulla, Karl-Heinz Sockel, Sigfredo Gonzales, Anne Dussaud
  • CATALYST FOR SYNTHESIS OF SILOXANES
    Publication number: 20160347910
    Abstract: Compositions and methods for the production of siloxane materials using an azaphosphatrane as a catalyst. In one embodiment, there is provided a process for the ring opening polymerization of a cyclosiloxane in the presence of an azaphosphatrane. In another embodiment, there is provided a composition and method for condensation curing of a moisture curable composition using an azaphosphatrane.
    Type: Application
    Filed: May 16, 2014
    Publication date: December 1, 2016
    Applicant: Momentive Performance Materials Inc.
    Inventors: Karthikeyan SIVASUBRAMANIAN, Patricia ANDERSON
  • Stabilization of polyacrylamide emulsion formulations
    Patent number: 9505971
    Abstract: The current invention provides a method to form a stable blend of polyacrylamide water-in-oil emulsion and breaker surfactants such as silicon polyether copolymer and linear or branched alcohol ethoxylate surfactants. The composition can be employed, for example, as a friction reducing additive for water based fracturing fluid, or a drilling mud additive.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: November 29, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mukesh Kumar, Kalman Koczo, John Terracina
  • Cosmetic skin covering sheets and their method of preparation
    Patent number: 9498409
    Abstract: The invention is directed to a cosmetic skin covering sheet which comprises a patch containing a cosmetic material for application to the skin or a cosmetic formulation which forms the cosmetic skin covering sheet in-situ upon topical application of the cosmetic formulation onto the skin, wherein each of said patch or cosmetic formulation comprises an ionic silicone as described herein.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 22, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Monjit Phukan, Anubhav Saxena, Mayank Kumar Dubey, Tushar Navale, Richard A. Presti
  • Moisture curable organopolysiloxane compositions
    Patent number: 9493691
    Abstract: The present invention provides curable compositions that are substantially free of metal catalysts including both tin and non-tin metal catalysts. The curable compositions employ a catalyst composition comprising the combination of a (i) carbodiimide functional compound, and (ii) an amino-containing compound such as an amino silane functional compound and/or an organic amine compound. The combination of these materials, particularly when aged, accelerates the condensation curing of moisture curable silicones/non-silicones even in the absence of a metal-based catalyst.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: November 15, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Mihirkumar Patel, Anantharaman Dhanabalan, Sumi Dinkar, Vivek Karambelkar
  • (Meth)acryloxy-containing trisiloxane, siloxane-containing polymers and biomedical devices therefrom
    Patent number: 9487612
    Abstract: There is provided a trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group, useful in making water absorbing silicone-hydrogel films for biomedical devices, such as contact lens, and a process for producing these monomers. This invention also provides for copolymers made from the trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group described herein.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 8, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: John Nicholson, Ping Jiang, Vikram Kumar, Anubhav Saxena, Umapathy Senthilkumar, Eric Pohl, Kendall Guyer
  • Release modifier composition
    Patent number: 9487677
    Abstract: There is described a release composition including a polyorganosiloxane polymer and a release modifier. The release modifier includes comprising an alkenyl silsesquioxane an organo functional siloxane of the formula MDxM, wherein M represents R3SiO1/2, D represents R2SiO2/2, wherein R is alkyl or alkenyl of 1 to 40 carbon atoms, or hydrogen wherein the organo functional siloxane has a viscosity of from about 5 centipoises to about 80 centipoises and x is from about 5 to about 80, and an optionally a reactive diluent. The release composition includes at least one siloxane cross-linking agent, an inhibitor; and a hydrosilation catalyst.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: November 8, 2016
    Assignee: Momentive Performance Materials, Inc.
    Inventors: Roy Melvin Griswold, Melania Lapinski
  • METHOD ASSOCIATED WITH A CRYSTALLINE COMPOSITION AND WAFER
    Publication number: 20160319457
    Abstract: A method for growing a crystalline composition, the first crystalline composition may include gallium and nitrogen. 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. In one embodiment, the composition may have an amount of oxygen present in a concentration of less than about 3×1018 per cubic centimeter, and may be free of two-dimensional planar boundary defects in a determined volume of the first crystalline composition.
    Type: Application
    Filed: March 4, 2016
    Publication date: November 3, 2016
    Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Mark Philip D'Evelyn, Kristi Jean Narang, Dong-Sil Park, Huicong Hong, Xian-An Cao, Larry Qiang Zeng
  • Hydrophilic silicone monomers, process for preparation thereof and thin films containing the same
    Patent number: 9459378
    Abstract: The present invention relates to a fast curing compositions comprising a (meth)acrylamide functionalized hydrophilic silicone monomers having a polyether moiety containing a branched linking group. In one embodiment, such compositions are useful for preparing water-absorbing silicone-hydrogel films for contact lens applications. In one embodiment, the (meth)acrylamide monomers disclosed here have a branched linking group on the polyether moiety which makes it possible to produce hydrophilic polyether modified silicone copolymers without the need to separate various by-products including, but not limited to, unreacted, isomerized polyether and associated high molecular weight by-products.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: October 4, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Anubhav Saxena, Shreedhar Bhat, Senthilkumar Umapathy, Kenrick M. Lewis
  • Polymerizable amido-containing organosilicon compounds, silicon-containing polymers and biomedical devices therefrom
    Patent number: 9453944
    Abstract: There is provided a fast curing composition comprising an alpha, beta-unsaturated amido-containing organosilicon compound, useful in making water absorbing silicone-hydrogel films for biomedical devices, such as contact lens, and a process for producing these monomers. This invention also provides for hydrogels made from the alpha, beta-unsaturated amido-containing organosilicon compound described herein.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: September 27, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Anubhav Saxena, Shreedhar Bhat, Kenrick M. Lewis
  • Rubber composition containing blocked mercaptosilanes and articles made therefrom
    Patent number: 9447262
    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.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: September 20, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventor: William M. York
  • Reusable homogeneous cobalt pyridine diimine catalysts for dehydrogenative silylation and tandem dehydrogenative-silylation-hydrogenation
    Patent number: 9447125
    Abstract: Disclosed herein are cobalt complexes containing terdentate pyridine di-imine ligands and their use as efficient, reusable, and selective dehydrogenative silylation, crosslinking, and tandem dehydrogenative silylation-hydrogenation catalysts.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: September 20, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Aroop Kumar Roy, Crisita Carmen Hojilla Atienza, Paul J. Chirik, Kenrick M. Lewis, Keith J. Weller, Susan Nye, Johannes G. P. Delis, Julie L. Boyer, Tianning Diao, Eric Pohl
  • Activation of metal salts with silylhydrides and their use in hydrosilylation reactions
    Patent number: 9440999
    Abstract: The invention relates generally to transition metal salts, more specifically to iron, nickel, cobalt, manganese and ruthenium salts, activated with silylhydrides, and their use as efficient hydrosilylation catalysts.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: September 13, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Julie L. Boyer, Aroop Kumar Roy
  • Polysiloxane co- or terpolymers and polymers made therefrom
    Patent number: 9434820
    Abstract: Thermoplastic resin polymer compositions having a block of random polysiloxane co- or terpolymer structure, such as substituted phenyl-terminated polysiloxane co- or terpolymers having the general structure: provide improved flame resistance, optical clarity, and better low-temperature impact strength compared to conventional blends, additives, and copolymers. The substituted phenyl terminated polysiloxanes may be used to make various polysiloxane-thermoplastic resin polymer and polymer blends, as well as articles including such polysiloxane-thermoplastic resin polymer and blends.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: September 6, 2016
    Assignee: Momentive Performance Material Inc.
    Inventors: Anuj Mittal, Narayan Padmanabha Iyer, Samim Alam, Indumathi Ramakrishnan, Roy U. Rojas-Wahl
  • Thermally conductive plastic compositions, extrusion apparatus and methods for making thermally conductive plastics
    Patent number: 9434870
    Abstract: A thermally conductive filler composition and a resin composition comprising such filler compositions. The filler composition comprises a blend of a boron nitride, a graphite, or a combination thereof, a talc, and optionally a silane. The filler composition can further comprise other filler components including, for example, wollastonite, calcium carbonate, or a combination thereof. The filler compositions can be added to a resin composition to provide a thermally conductive resin such as, for example, a thermally conductive plastic.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: September 6, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Chandrashekar Raman, Bei Xiang, Anand Murugaiah
  • Platinum catalyzed hydrosilylation reactions utilizing cyclodiene additives
    Patent number: 9434749
    Abstract: A process for the hydrosilylation of an unsaturated compound comprising reacting (a) a silyl hydride with (b) an unsaturated compound in the presence of (c) a platinum compound and (d) a cyclodiene, with the provisos that (i) when the unsaturated compound is a terminal alkyne, the silyl hydride is other than a halosilane, and (ii) when the platinum compound is a Pt(II)-based compound, the ratio of total moles of cyclodiene to moles of platinum is less than 3:1.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: September 6, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Aroop Kumar Roy, Julie L. Boyer, Juergen Koller, David Jenkins, Andrea Trotto, Kenrick M. Lewis
  • ?,?-functionalized polyoxyalkylene-siloxane polymers and copolymers made therefrom
    Patent number: 9428617
    Abstract: An ?,?-functionalized polyoxyalkylene-siloxane polymer having the general structural Formula (I): provides improved hydrophilicity and hemocompatibility. The ?,?-functionalized polyoxyalkylene-siloxane polymer may be used to make various polycarbonate/?,?-functionalized polyoxyalkylene-siloxane copolymers and polymer blends, as well as articles including such copolymers and blends.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: August 30, 2016
    Assignee: Momentive Performance Material Inc.
    Inventors: Anuj Mittal, Laxmi Samantara, Samim Alam, Anubhav Saxena, Indumathi Ramakrishnan, Roy U. Rojas-Wahl