Abstract: A functionalized siloxane network. The functionalized network comprises a ligand attached to the network. The ligand includes a pyridine-containing compound, and in one embodiment, the ligand includes a terpyridine compound. The functionalized siloxane network can be siloxane particles. The functionalized siloxane network can coordinate metal ions and can be used in luminescent articles.
Abstract: A transesterification process for preparing alkoxysilane includes removal of metal transesterification catalyst from the alkoxysilane transesterification reaction medium.
Type:
Grant
Filed:
June 7, 2017
Date of Patent:
May 21, 2019
Assignee:
Momentive Performance Materials Inc.
Inventors:
Alain Lejeune, Antonio Chaves, Tiberiu Simandan, Ilaria Vecchi, Lesley Hwang, Andrea Trotto
Abstract: A functionalized siloxane includes a ligand capable of coordinating a metal. The functionalized siloxane includes a pyridine-containing ligand attached to a siloxane polymer. The functionalized siloxanes can be employed to provide complexes including a metal that may impart a desired property to the polymer. In one embodiment, the polymer can complex lanthanide metals that are capable of phosphorescing upon exposure to UV irradiation. Such polymers can be employed to provide functional materials such as, for example, luminescent films, coatings, etc.
Abstract: A curable composition comprising (a) an organopolysiloxane comprising a curable functional group; (b) a cross-linker comprising a silyl hydride group or a thiol group; (c) a reaction accelerator; (d) optionally an inhibitor; and (e) optionally other additives. The curable composition exhibits high refractive index and optical clarity. The curable composition can be used to prepare a cured material that exhibits high refractive index, optical clarity, crack resistance, and low moisture vapor permeability.
Abstract: There is provided herein a method of preparing an isocyanatosilane including reacting an olefinic isocyanate with a hydridosilane in the presence of a dinuclear rhodium complex under hydrosilylation conditions.
Type:
Grant
Filed:
May 31, 2017
Date of Patent:
April 23, 2019
Assignee:
Momentive Performance Materials Inc.
Inventors:
Brendan John O'Keefe, Roland Wagner, Holger Jürgen Glatzer, Tiberiu Simandan, Konstantin Kraushaar, Joe Adrian Biele, Edwin Kroke
Abstract: A flame-retarded resin includes at least one resin for which flame retardant capability is desired and at least one triaryl silicon-containing compound (I) as flame retardant in admixture therewith and/or chemically bonded, e.g., grafted, to the resin.
Type:
Grant
Filed:
June 27, 2017
Date of Patent:
April 23, 2019
Assignee:
Momentive Performance Materials Inc.
Inventors:
Samim Alam, Koji Suenaga, Roy Rojas-Wahl
Abstract: A heater assembly is disclosed herein. The heater assembly may comprise a tubular body. The tubular body may include a graphite core disposed in a heating path. The graphite core may be coated with an overcoat layer. The tubular body may include slits that may cut-off heat transfer between portions of the tubular body. The heater assembly may have a configuration comprising a plurality of heating rungs having a predominant portion disposed substantially perpendicular to an upper surface of the heater so that the predominant portion is disposed vertically. The heater assembly may include a flange at a first end and a lip at a second end. The heater assembly configuration provides a heater that exhibits reduced thermal stress and/or reduced CTE mismatch stress particularly compared to other designs.
Abstract: There is provided herein a low foam surfactant composition comprising: (a) di-trisiloxane alkoxylate component of the general formula (I): (R1R2R3SiO)2(R4)Si—R5—Si(R6)(OSiR7R8R9)2??(I); and, (b) mono-trisiloxane alkoxylate component of the general formula (II): (R12R13R14SiO)2Si(R15)R16??(II) wherein di-trisiloxane alkoxylate (I) is soluble in mono-trisiloxane alkoxylate and methods of making the same.
Type:
Grant
Filed:
July 15, 2015
Date of Patent:
January 29, 2019
Assignee:
Momentive Performance Materials Inc.
Inventors:
George A. Policello, Linh The Truong, Benjamin Falk, Kalman Koczo
Abstract: The present invention provides curable compositions comprising non-tin metal accelerators that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides an accelerator comprising metal-arene complexes that are suitable as replacements for organotin in sealant and RTV formulations.
Type:
Grant
Filed:
November 26, 2014
Date of Patent:
January 8, 2019
Assignee:
MOMENTIVE PERFORMANCE MATERIALS INC.
Inventors:
Christopher Michael Byrne, Anantharaman Dhanabalan, Sumi Dinkar, George Samuels
Abstract: The present invention provides a polyorganosiloxane compound having a low viscosity, a process for the manufacture of such polyorganosiloxane compounds, polyorganosiloxane compositions comprising said polyorganosiloxane compound and another polyorganosiloxane compound which is different from the polyorganosiloxane compound, aqueous emulsions comprising the polyorganosiloxane compound, and a method of surface treatment using the polyorganosiloxane compound.
Type:
Grant
Filed:
July 13, 2016
Date of Patent:
December 25, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Roland Wagner, Karl-Heinz Stachulla, Katharina Streicher, Christian Wenske
Abstract: A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used.
Type:
Grant
Filed:
August 11, 2015
Date of Patent:
November 27, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
Abstract: The present invention provides for a household, agricultural, coating or personal care product composition containing the crosslinked reaction product of a network composition the reaction product of: (i) at least one anionic polymerizable ethylenically unsaturated monomer (I) selected from the group consisting of [CH2?C(R3)C(O)OXa(C2H4O)b(C3H6O)c(C4H8O)d]pP(O)(OY)q(OZ)r and CH2?C(R3)C(O)OXa?(C2H4O)b?(C3H6O)c?(C4H8O)d?—SO3—Y) where R3=H or alkyl of 1 to about 6 carbon atoms; X=alkyl, aryl, or alkaryl diradical connecting group of 0 to about 9 carbon atoms; a, a?, b, b?, c, c?, d and d? are 0 to about 100; q is 0 to about 2; r is 0 to about 2; p is 1 to about 3 subject to the limitation that p+q+r=3; and Y and Z is H, or metal ion; and (ii) one or more additional monomers (II) selected from the group consisting of acrylic acid/acrylate, methacrylic acid/methacrylate, acrylamides, vinyl acetate and styrene, which are copolymerizable with (I); and (iii) a cross-linking agent (III), capable of copolymerizin
Type:
Grant
Filed:
December 22, 2010
Date of Patent:
November 20, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Ning Lu, Sigfredo Gonzalez, Ernie Silvestre, Geng Wang
Abstract: A water soluble silicone macromer comprising a siloxane backbone having grafted thereto a suitable number of hydrophilic groups to render the macromer water soluble, the macromer comprising a polymerizable functional group grafted to the siloxane backbone. In one aspect, the present invention provides a water soluble silicone macromer having a structure of Formula (1): where M is a hydrophilic group or segment; L is a hydrophilic or hydrophobic linkage; N is a hydrophilic or hydrophobic group or segment. Q is a polymerizable functional group; x is zero or an integer greater than zero; y is zero or an integer greater than zero; v is zero or an integer greater than zero; and z is greater than zero, with the proviso that both y and v are not zero.
Type:
Grant
Filed:
January 31, 2014
Date of Patent:
November 6, 2018
Assignee:
MOMENTIVE PERFORMANCE MATERIALS INC.
Inventors:
Weihong Lang, Wen P. Liao, Susan Nye, Kenrick M. Lewis
Abstract: There is provided herein a composition comprising (a) a mercapto-functional silicon compound having the general Formula (I): and a reactive resin containing at least one epoxy and/or (meth)acrylate group. There is also provided a silylated resin resulting from the reaction product of mercapto-functional silicon compound (a) and reactive resin contain at least one epoxy and/or (meth)acrylate groups.
Type:
Grant
Filed:
April 11, 2016
Date of Patent:
October 23, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Constantine Kondos, Vikram Kumar, Martin Wusik
Abstract: A composition, suitable for use in producing hydrogel polymer films from which biomedical devices such as contact lenses can be made, comprising at least one hydrophilic silicone macromer.
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 based hydrosilylation catalyst comprising a platinum-diene complex with chelating anions. The use of the present catalysts in the process provides silylated products in good yields and allows for using lower platinum loadings than conventional catalysts, reduced cycle times, and may reduce yellowing in the product.
Type:
Grant
Filed:
December 15, 2015
Date of Patent:
August 14, 2018
Assignee:
MOMENTIVE PERFORMANCE MATERIALS INC.
Inventors:
Julie L. Boyer, Aroop K. Roy, David Jenkins, Indraneel Kundu
Abstract: Compositions comprising Silane functionalized compounds are provided. In one embodiment, the silane functionalized compounds include an epoxy resin derived backbone having silane functional groups pendant to the backbone or serving as end caps. The compositions comprising silane functionalized compounds may be utilized in a variety of applications including in coating formulations, adhesive formulations, composite materials, and combinations thereof.
Type:
Grant
Filed:
September 23, 2015
Date of Patent:
August 7, 2018
Assignees:
HEXION, INC., MOMENTIVE PERFORMANCE MATERIALS INC.
Inventors:
Antonina Nikitenko, Matthew Pinnow, Amitabh Bansal
Abstract: Conversion and passivation coatings and methods for metal surfaces such as steel and aluminum are disclosed. The coating compositions comprise an aqueous sol of cerium oxide and/or silica particles and a ureido silane compound. The methods of the invention comprise contacting the requisite metal surface with the coating composition.
Type:
Grant
Filed:
November 30, 2005
Date of Patent:
August 7, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Lingyun He, Donald W. Whisenhunt, Jr., Jeffrey I. Melzer, Andrea Keys Eodice, Bret Chisholm, Christopher M. Carter, Shiu-Chin H Su, Kendall L. Guyer, Matthew M. Hunter
Abstract: Provided is a one part, dual curable composition comprising (A) a first acrylic functional polyorganosiloxane with at least one moisture curable functional group, (B) a second acrylic functional polyorganosiloxane, which may optionally contain a moisture curable functional group, and (C) a third functional polyorganosiloxane, which optionally contains an acrylic and moisture curable functional group. The combination of (A), (B), and (C) provides a composition that is both moisture curable and radiation curable and provides a material that is fast curing via the dual cure functionality and provides a cured material exhibiting a relatively low modulus, good adhesion, and optical clarity.
Abstract: A high refractive index molecule and high refractive index polymers comprising such monomers. The high refractive index monomer comprises a carrier atom having a high refractive index group attached thereto, the high refractive index group comprising a heterocyclic compound comprising at least one sulfur atom.
Type:
Grant
Filed:
March 7, 2013
Date of Patent:
July 24, 2018
Assignee:
MOMENTIVE PERFORMANCE MATERIALS INC.
Inventors:
Rajiv Srivastava, Douglas Michael Dukes, Hai Hui Lin