Abstract: A surface-protective coating forming composition exhibiting excellent shelf life (storage stability) and cured coating performance is derived from alkoxysilane and a plurality of metal oxides.
Abstract: The invention relates to a process for the manufacture of organomonosilanes bearing both hydrogen and chlorine substituents at the silicon atom by subjecting a silane substrate comprising one or more silanes selected from organomonosilanes, organodisilanes and organocarbodisilanes, with the proviso that at least one of these silanes has at least one chlorine substituent at the silicon atom, to a redistribution reaction in the presence of a phosphane or amine acting as a redistribution catalyst.
Type:
Grant
Filed:
September 20, 2018
Date of Patent:
June 7, 2022
Assignee:
Momentive Performance Materials Inc.
Inventors:
Norbert Auner, Tobias Santowski, Alexander Sturm
Abstract: The present invention relates to an addition-curable silicone rubber composition having self-bonding capability. The addition-curable silicone rubber composition exhibits self-bonding capability in particular to substrates that contain residual hydroxyl groups or other residual hydrosilyl-reacting groups on their surface, including polycarbonate, polyester, polyamide, polysulfone, polyurethane, phenolic resin, epoxy resin, cellulose, glass and the mixture thereof.
Type:
Grant
Filed:
December 20, 2017
Date of Patent:
April 19, 2022
Assignee:
MOMENTIVE PERFORMANCE MATERIALS, INC
Inventors:
Huiping Zhang, Srividhya Marimuthu, Gunnar Hoffmueller, John Mitchell Huggins, Enise Michalski
Abstract: A silane based additive, rubber formulations including the additive and tires having tread portions made with the additive, together with methods of forming those products, are provided. Uncured rubber formulations in accordance with preferred embodiments of the invention comprise (1) a rubbery primary polymer or polymer blend, such as natural rubber and/or synthetic rubber; (2) reinforcing silica filler; (3) a network forming monomer or polymer, especially a thermosetting network forming moiety, for forming a secondary polymeric network; and (4) a silane containing one or more moieties of the aforementioned network forming polymer. In particular networks which can be generated in-situ are preferred. The cured rubber formulation should comprise the silica, having the secondary polymer network coupled thereto, within the rubber matrix, and not directly to the rubber chains via sulfidic linkages.
Type:
Grant
Filed:
November 5, 2019
Date of Patent:
March 8, 2022
Assignee:
Momentive Performance Materials Inc.
Inventors:
William Michael York, Adeyemi Adedayo Adepetun, Lesley Hwang, Eric Pohl
Abstract: A hydrophilic silicone, compositions comprising the same, and articles comprising the same are shown and described herein. The hydrophilic silicone is an ionically modified silicone compound wherein the compound has a net neutral charge. The hydrophilic silicone compounds may be provided as part of a composition, e.g., a composition suitable for forming a hydrogel, which may be employed to form a film material and even an article (e.g., in a contact lens).
Abstract: An organic polymer comprising an organic polymer fragment and at least one S-alkylsilyl hydrocarbonthioate group or at least one S-alkylstannyl hydrocarbonthioate group bonded to the backbone of the organic polymer fragment through a C—Si covalent bond and their methods or production are provided. The organic polymer backbone can be derived from the anionic polymerization of monomers containing C—C unsaturation. The silicon or tin atom can be further bonded to two alkoxy groups, two hydrocarbon groups or to one alkoxy group and one hydrocarbon group.
Abstract: A method of stabilizing imino-functional silane involving adding thereto at least one Brønsted-Lowry base to inhibit, suppress or prevent the addition reactions of the imino-functional silane with itself to form a imino- and amino-functional silane and the subsequent deamination reactions to form conjugated carbon-carbon double bond-containing imino-functional silanes and stabilized imino-functional silanes containing the at least one Brønsted-Lowry base.
Abstract: The invention relates to aqueous compositions for hair treatment, comprising polyorganosiloxanes A) or organic compounds B) having certain functional groups, in particular aldehyde and unsaturated dicarboxylic acid moieties, hair treatment or hair care compositions comprising the aqueous compositions, a process for the treatment of hair which comprises the steps of providing the aqueous compositions and applying said aqueous compositions to the hair, and the use of the aqueous compositions for the treatment of hair.
Type:
Grant
Filed:
June 5, 2017
Date of Patent:
November 23, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
Kunshan Sun, Anne Dussaud, Karl-Heinz Stachulla, Christian Wenske, Katharina Streicher, Roland Wagner
Abstract: A deposition aid is provided, comprising a low molecular weight, low viscosity polysiloxane, combined with a crop oil concentrate or esterified seed oil concentrate. Combinations including the modified silicone can improve spreading and/or adhesion to foliage. Adding about 5% to about 20% of the modified silicone can provide more than a proportional increase in spreading and/or adhesion.
Type:
Grant
Filed:
October 4, 2018
Date of Patent:
November 9, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
William L. Brown, George A. Policello, Jeferson A. Naue
Abstract: The present invention relates to a crosslinked polyacrylate salt, which has been neutralized by two types of amines: (1) amine groups attached to the polymer backbone of an aminosilicone and (2) water soluble organic amines. The compositions of the present invention can readily swell in water, displaying enhanced thickening, emulsifying, dispersing and producing film with water resistance compared to acrylate based thickener alone. The compositions can be used to formulate a wide variety of ingredients, such as, for example, fatty substances, humectants, solid particles, silicones, organic or inorganic sunscreens, without the need of further neutralizing agents, dispersants or emulsifiers.
Type:
Grant
Filed:
December 4, 2015
Date of Patent:
September 7, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
Anne Dussaud, Ning Lu, Bhavna Rana, Sigfredo Gonzalez
Abstract: A primer composition comprising metal oxide particles modified with an alkyltrialkoxy silane; an organic polymer; and a solvent. The weight ratio of alkyltrialkoxy silane to metal particles is at least 0.9:1. The primer compositions produce films having excellent optical and adhesion characteristics.
Type:
Grant
Filed:
February 15, 2016
Date of Patent:
August 31, 2021
Assignee:
MOMENTIVE PERFORMANCE MATERIALS INC.
Inventors:
Raghuraman Govindan Karunakaran, Karthikeyan Murugesan, Indumathi Ramakrishnan, Robert Hayes
Abstract: This invention relates to the use of polycarboxylic acid compounds, aqueous compositions comprising the same, cosmetic compositions comprising the same, in particular, hair care compositions, and their use for the treatment of hair, and a process for the treatment of hair comprising the use of said cosmetic compositions.
Type:
Grant
Filed:
December 4, 2018
Date of Patent:
August 17, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
Kunshan Sun, Anne Dussaud, Nicholas Stasiak, Katharina Streicher, Roland Wagner
Abstract: A process is provided for inhibiting the corrosion of metal that comes into contact with a static or flowing aqueous medium which comprises contacting at least a portion of the exposed surface of the metal with aqueous medium containing a metal corrosion inhibiting amount of at least one ureido silane and, optionally, one or more added inorganic and/or other organic materials.
Abstract: Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems.
Type:
Grant
Filed:
September 26, 2017
Date of Patent:
July 6, 2021
Assignees:
MOMENTIVE PERFORMANCE MATERIALS INC., PRINCETON UNIVERSITY
Inventors:
Keith James Weller, Crista Carmen H. Atienza, Julie Boyer, Paul Chirik, Johannes G. P. Delis, Kenrick Lewis, Susan A. Nye
Abstract: Composition of comprising nano metal oxide/hydroxide particles and a polyorganosiloxane having increased refractive index, processes to cure these compositions for making transparent coats, shaped articles by an extrusion or molding process having a refractive index above the refractive index of the polyorganosiloxane. Use of the cured polyorganosiloxane compositions as optical devices, coats, lenses or light guides.
Type:
Grant
Filed:
July 20, 2016
Date of Patent:
May 25, 2021
Assignee:
MOMENTIVE PERFORMANCE MATERIALS INC.
Inventors:
Thorsten Felder, Monika Friedrichs, Gunnar Hoffmüller, Abirami Srikanth, Douglas Dukes, Sumi Dinkar, Roland Wagner, Karl Heinz Stachulla
Abstract: The invention relates to a process for the manufacture of organomonosilanes, in particular, bearing both hydrogen and chlorine substituents at the silicon atom by subjecting a silane substrate comprising one or more organomonosilanes, with the proviso that at least one of these silanes has at least one chlorine substituent at the silicon atom, to the reaction with one or more metal hydrides selected from the group of an alkali metal hydride and an alkaline earth metal hydride in the presence of one or more compounds (C) acting as a redistribution catalyst.
Type:
Grant
Filed:
September 20, 2018
Date of Patent:
May 18, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
Norbert Auner, Tobias Santowski, Alexander Sturm
Abstract: Water penetration into a siliceous subterranean hydrocarbon fluid-bearing formation is inhibited by introducing into the formation organosiloxane possessing at least one alkoxy group directly bonded to a silicon atom.
Type:
Grant
Filed:
February 22, 2019
Date of Patent:
May 4, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
Mukesh Kumar, Kalman Koczo, Mark Leatherman, Kostas Spyropoulos
Abstract: This invention relates to aqueous compositions for hair treatment, comprising polyorganosiloxanes A) having di- and trihydroxy-substituted aromatic groups and at least one surfactant B) selected from cationic surfactants B1) and anionic surfactants B2) in a certain weight ratio of the surfactant B) to the polyorganosiloxane A), and said aqueous compositions having a certain pH. The invention further relates to hair treatment compositions, comprising said aqueous compositions and to hair treatment processes using said aqueous compositions or hair treatment compositions.
Type:
Grant
Filed:
June 5, 2017
Date of Patent:
April 20, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
Anne Dussaud, Roland Wagner, Katharina Streicher, Christian Wenske
Abstract: Provided is a polymer of the formula: and compositions comprising the same. The polymers comprise a cyclic unsaturated group (Z3) within the siloxane polymer backbone. The polymers have been found to exhibit good thermal conductivity and may find utility in a variety of applications.