Abstract: A condensation curable silicone adhesive composition comprising a siloxane-imide base polymer, condensation curable organopolysiloxane crosslinker, a condensation catalyst and an additive is shown and described herein. The composition is curable at relatively room temperatures and shows good heat stability.
Type:
Grant
Filed:
December 23, 2020
Date of Patent:
October 11, 2022
Assignee:
Momentive Performance Materials Inc.
Inventors:
Subrata Mandal, Tetsuo Fujimoto, Debanga B. Konwar
Abstract: The present invention relates to curable compositions comprising at least one compound of the formula (1): wherein R is C1-C10 alkyl, and R1-R10 each are independently selected from the group consisting of hydrogen and C1-C10 alkyl, with the proviso that at least one of R1-R10 is alkyl, and wherein the substitution patterns formed by the residues R1-R5 and R6-R10 on each of the aromatic rings are different from each other, cured compositions obtained from such curable compositions, mixtures of compounds of the formula (I), the use of such compounds and mixtures of such compounds as a UV stabilizer in curable compositions, and a process for the manufacture of curable compositions comprising a UV stabilizer of the formula (1).
Type:
Grant
Filed:
September 20, 2019
Date of Patent:
June 28, 2022
Assignee:
Momentive Performance Materials Inc.
Inventors:
Paul Furuta, Andreas Haeuseler, Gunnar Hoffmüller
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: 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: 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: 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: 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: 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: 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.
Abstract: The present disclosure relates to an adjuvant composition comprising lecithin; and, an organosilicon surfactant of formula (I): R1—Si(CH3)2—Z??(I) wherein: R1 is a branched monovalent hydrocarbon group of from 5 to 8 carbon atoms containing at least two methyl groups; Z is R2 or R3; R2 is CH2CH2CH2—OC2H4—O)a(C3H6O)b(C4H8O)c—R4 in which R4 is hydrogen, a linear or branched monovalent hydrocarbon group of from 1 to about 4 carbon atoms or an acyl group, subscript a is from 1 to about 20, subscript b is from 0 to about 19, subscript c is from 0 to about 19 and the sum of subscripts a, b and c is from 1 to about 20; and, R3 is —CH2CH2CH2—O—CH(OH)CH2—N+(CH3)2—R5 [X?] in which R5 is a linear or branched hydrocarbon group of from 1 to about 4 carbon atoms or an acetyl group and X? is a saturated or unsaturated carboxylate anion of from 2 to about 22 carbon atoms optionally containing 1 or 2 hydroxyl groups.
Type:
Grant
Filed:
September 25, 2017
Date of Patent:
February 16, 2021
Assignee:
Momentive Performance Materials Inc.
Inventors:
George A. Policello, Jeferson A. Naue, Narayan Mukherjee
Abstract: There is provided herein a method for the manufacture of alkoxysilyl-containing thiocarboxylic acid ester which comprises reacting a thioester with a mercapto-functional alkoxysilane and/or an alkali metal salt, an alkaline earth metal salt, a trisubstituted ammonium salt of an alkoxysilyl-functional thiolate which uses economical and readily available reagents, avoids the use of phosgene or thionyl chloride reagents and produces byproducts that may be recycled.
Abstract: An organomodified silicone material is shown and described herein. The organomodified silicone provides a material that can be used as an additive in a fuel oil, e.g., diesel fuel. The organomodified silicone acts as both a defoamer and a dehazer in a fuel oil.
Type:
Grant
Filed:
November 7, 2018
Date of Patent:
December 8, 2020
Assignee:
Momentive Performance Materials Inc.
Inventors:
Narayan Mukherjee, Mark David Leatherman, Richard Conticello