Abstract: A condensation curable silicone adhesive composition comprising a condensation curable organopolysiloxane, siloxane-imide 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.
Abstract: There is provided herein a method and an apparatus for producing an isocyanatoorganosilane which method includes feeding a carbamatoorganosilane to a cracking device where it is thermally dissociated into a reaction product mixture comprising isocyanatoorganosilane, alcohol, and heavies, followed by separating the mixture in a distillation column of two parts and collecting the isocyanatoorganosilane from the distillation column via a side stream having a predetermined location between the top and bottom parts of the column; and wherein the distillation column is configured to have a ratio of the length of the bottom part of the distillation column to the length of the top part of the distillation column which is effective to provide a side stream having a high purity and high weight percent of isocyanatoorganosilane.
Abstract: Rubber compositions comprising at least one diene based polymer, a precipitated silica, a coupling agent package comprising a mercapto-functional alkylalkoxysilane and a blocked mercapto-functional alkylalkoxysilane, a deblocking agent, a vulcanizing package comprising at least one vulcanizing agent comprising sulfur and at least one accelerator, and a scorch modifier are provided herein.
Type:
Application
Filed:
October 6, 2022
Publication date:
April 6, 2023
Applicant:
Momentive Performance Materials Inc.
Inventors:
Christopher PAPPAS, Richard W. CRUSE, Eric Raymond POHL, Aaron RYBA, Michael YORK
Abstract: The present invention relates to aspartic acid ester-functional polysiloxanes, their use in the manufacture of curable compositions using polyisocyanate crosslinkers, in particular, in the manufacture of coating compositions, cured compositions obtained from said curable compositions and articles comprising the cured compositions.
Abstract: The present invention relates to an integrated process for the manufacture of methylchlorohydridomonosilanes in particular, from products of the Müller-Rochow Direct Process.
Type:
Grant
Filed:
September 20, 2018
Date of Patent:
December 6, 2022
Assignee:
Momentive Performance Materials Inc.
Inventors:
Norbert Auner, Tobias Santowski, Alexander Sturm, Thorsten Felder, Kenrick Lewis
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: The present technology provides a non-cylindrical structure for transporting media, including gases, liquids, solids, or energy comprising a layer of thermal pyrolytic graphite (TPG) surrounded by an outer layer and an inner layer comprising a metal, a ceramic, a glass, or a plastic. In particular, the present technology relates to a non-cylindrical tube or a pipe having an inner layer, an outer layer, and a layer of TPG between the inner layer and the outer layer wherein the TPG layer is configured to manage the direction of heat conduction.
Type:
Grant
Filed:
May 10, 2017
Date of Patent:
February 22, 2022
Assignee:
Momentive Performance Materials Quartz, Inc.
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: The invention relates to a method for cleaving silicon-silicon bindings and/or silicon-chlorine bindings in monosilanes, polysilanes, and/or oligosilanes. According to the invention, the monosilane, polysilane, and/or oligosilane is dissolved or suspended in an ether or in an ether-hydrochloric acid solution. Said method is used for example for preparing halogenated oligosilanes from halogenated polysilanes and for preparing siloxanes from organochlorosilanes and chlorinated monosilanes. Said method is particularly simple to carry out and as a result is economical.
Type:
Grant
Filed:
July 20, 2015
Date of Patent:
August 31, 2021
Assignee:
Momentive Performance Materials GmbH
Inventors:
Norbert Auner, Max C. Holthausen, Felix Neumeyer
Abstract: A thermal management assembly comprising a bulk graphene material and a metal-based coating layer disposed on opposing surfaces of the bulk graphene core material comprising an agent that is reactive with the graphene to form a carbide. The metal-based coating layer can serve as an outer layer of the assembly or can serve to bond the graphene to other materials encapsulating the graphene core. The metal-based coating layer with the reactive agent provides an assembly exhibiting excellent thermal conductivity properties and greatly improved thermal interface resistance.
Type:
Grant
Filed:
September 24, 2013
Date of Patent:
August 31, 2021
Assignee:
Momentive Performance Materials Quartz, Inc.
Inventors:
Wei Fan, Xiang Liu, John Mariner, Aaron Rape
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.