Patents Assigned to Momentive Performance Materials
  • 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
  • Process for the manufacture of a multilayer silicone structure
    Patent number: 9492846
    Abstract: A process for the manufacture of a multilayer silicone structure of cured silicone elastomer layers wherein the compositions of each of the curable silicone elastomers are chosen such as to provide excellent layer-to-layer adhesion of the said cured silicone elastomer layers, that is, the layers do not suffer from cohesive failure. The multilayer silicone structures may be used for example for the manufacture of electronic devices, coatings, shaped molded articles, laminates, etc.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: November 15, 2016
    Assignee: Momentive Performance Materials GmbH
    Inventors: Oliver Kretschmann, Markus Putzer, Cristian De Santis, Andrea Ruppenthal, Carsten Koopmanns
  • 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
  • Heat curable silicone rubber composition
    Patent number: 9487639
    Abstract: The present invention provides a heat-curable silicone rubber composition capable of giving a stable and high antistatic property for a long time without degrading inherent properties of a silicone rubber, such as thermal stability. The heat-curable silicone rubber composition includes: (A) 100 parts by mass of a mixture of a polyorganosiloxane obtained by polymerization by using an alkali metal hydroxide as a polymerization catalyst and by neutralization, and a curing agent, and (B) 50 to 1000 ppm of an ionic substance containing an anion and a cation, and being a bis(trifluoromethanesulfonyl)imide as the anion.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: November 8, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Hidefumi Tagai, Hiroyoshi Iijima, Hideo Takahashi
  • (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
  • Heat curable addition-reactive type silicone rubber composition
    Patent number: 9487656
    Abstract: A heat-curable addition-reactive type silicone rubber composition which gives a molded article having excellent antistatic property, heat resistance, compression set property. The heat-curable addition-reactive type silicone rubber composition includes: (A) a mixture containing a heat curable addition-reactive silicone rubber and a curing agent, (B) an ionic liquid in an amount of 30 to 3000 ppm relative to 100 parts by mass of the component (A), wherein the curing agent is not included in the 100 parts by mass, (C) a heterocyclic compound containing nitrogen atoms in an amount of 30 to 3000 ppm relative to 100 parts by mass of the component (A), wherein the curing agent is not included in the 100 parts by mass.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: November 8, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Hiroyoshi Iijima, Hideo Takahashi, Hidefumi Tagai
  • 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
  • ROOM-TEMPERATURE-CURABLE POLYORGANOSILOXANE COMPOSITION AND ELECTRIC/ELECTRONIC APPARATUS
    Publication number: 20160304745
    Abstract: There is provided a room-temperature-curable polyorganosiloxane composition having low viscosity and good coatability without any solvent and forming a cured coating film excellent in scratch resistance. The room-temperature-curable polyorganosiloxane composition contains: (A) 100 parts by mass of a mixture of (A1) 10 to 80 parts by mass of a polyorganosiloxane having two or more alkoxy groups bonded to silicon atoms and a prescribed viscosity, and (A2) 90 to 20 parts by mass of a polyorganosiloxane represented by an average composition formula: R1aSi(OR2)bO{4?(a+b)}/2 (R1 and R2 represent prescribed group respectively, and a and b are prescribed positive numbers), having an Mw of 2,000 to 100,000 and a three-dimensional network structure, and being in a solid state or in a semisolid state at normal temperature; and (B) 0.1 to 15 parts by mass of an organic titanium compound.
    Type: Application
    Filed: June 23, 2016
    Publication date: October 20, 2016
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Isao IIDA, Takeshi SUNAGA
  • 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
  • ADDITION-CURABLE SILICONE COMPOSITION
    Publication number: 20160280918
    Abstract: There is provide an addition-curable silicone composition from which a silicone cured product having excellent adhesiveness and external appearance, being able to protect metal, in particular, silver, from corrosion, and having less shrinkage and change in hardness due to heat, is obtained. The addition-curable silicone composition contains: 100 parts by mass of a polyorganosiloxane having alkenyl groups; an amount of a polyorganohydrogensiloxane such that an amount of Si—H groups is 0.9 to 3.0 mol relative to 1 mol of the alkenyl groups; a catalyst amount of a hydrosilylation reaction catalyst; 0.01 to 10 parts of an adhesiveness imparting agent; and 0.001 to 0.015 parts by mass, in terms of metal atoms of (R3COO)kM (where M is Ce, Fe, Cr, La, Nd, Pr or Sm, k is 2, 3 or 4, and R3 represents a substituted or unsubstituted hydrocarbon group having 4 to 17 carbon atoms).
    Type: Application
    Filed: June 7, 2016
    Publication date: September 29, 2016
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Prakash KUMAR, Hideo TAKAHASHI
  • 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
  • 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
  • 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