Patents Assigned to Momentive Performance Materials
  • Patent number: 11352377
    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
  • Patent number: 11319414
    Abstract: Provided is a silicone polymer of the Formula (I): M1aM2bM3cD1dD2eD3fT1gT2hT3iQj.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 3, 2022
    Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
    Inventors: Vinu Krishnan Appukuttan, Pranabesh Dutta, Sandeep Naik, Anubhav Saxena
  • Patent number: 11306205
    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
  • Patent number: 11286349
    Abstract: A siloxane compound represented by the general formula (1): where R1 is a group having an alkoxysilyl group having 1 to 4 carbon atoms, R2 is a linear organosiloxy group represented by the general formula (2): where each R4 is independently a monovalent hydrocarbon group having 1 to 12 carbon atoms, Y is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and d is an integer of 10 to 50, each X is independently a divalent hydrocarbon group having 2 to 10 carbon atoms, each of a and b is independently an integer of 1 or more, c is an integer of 0 or more, a+b+c is an integer of 4 or more, and each R3 is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: March 29, 2022
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Eiji Tanigawa, Masanori Takanashi, Isao Iida, Daigo Hirakawa, Kenji Takenaka
  • Publication number: 20220081589
    Abstract: There is provided an aqueous coating agent composition that does not contain an organotin compound and forms a coating film having good slipperiness and having excellent adhesiveness (adhesion) and abrasion resistance. The aqueous coating agent composition contains: (A) polydiorganosiloxane having both terminals blocked with hydroxyl groups, the polydiorganosiloxane having a viscosity of 50 to 100,000,000 mPa·s (at 25° C.); (B) polyorganohydrogensiloxane having at least three hydrogen atoms in one molecule; (C) a zinc compound as a curing catalyst; (D) an organic compound and/or polyorganosiloxane having at least one of a primary amino group and a secondary amino group; (E) an adhesion improving component; and (F) spherical particles.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventor: Masanori KIMURA
  • Patent number: 11267955
    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
  • Publication number: 20220056326
    Abstract: An adhesive polyorganosiloxane composition includes, at a specific composition ratio: (A) a linear polyorganosiloxane containing an alkenyl group including a low-viscosity linear polyorganosiloxane containing an alkenyl group; (B) a polyorganosiloxane containing at least three alkenyl groups in the molecule; (C1) a polyorganohydrogensiloxane having 3 or more hydrogen atoms bonded to a silicon atom in the molecule; (C2) a linear polyorganohydrogensiloxane having one hydrogen atom bonded to a silicon atom only at both terminals of the molecular chain, and having no aliphatic unsaturated bonds in the molecule; (D) a filler; (E) a platinum group metal compound; and (F) two or more kinds of specific adhesion imparting agent.
    Type: Application
    Filed: December 23, 2019
    Publication date: February 24, 2022
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Koki OTASHIRO, Koji MIYATA, Masanori TAKANASHI
  • Patent number: 11255613
    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.
    Inventors: Wei Fan, Creighton Tomek, Gregory Shaffer
  • Patent number: 11254849
    Abstract: A method for producing a polyorganosiloxane resin composition including: (a) mixing a thermally-conductive filler having a particle size distribution having a single peak, with a surface treatment agent containing a siloxane to form a mixture, and (b) mixing the mixture from step (a) with a polysiloxane resin.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 22, 2022
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Eiji Tanigawa, Masanori Takanashi, Isao Iida, Daigo Hirakawa, Kenji Takenaka
  • Patent number: 11254789
    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).
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: February 22, 2022
    Assignee: Momentive Performance Materials Inc.
    Inventors: Meenal Mehra, Raveendra Mathad, Shreedhar Bhat
  • Patent number: 11230620
    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.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: January 25, 2022
    Assignee: Momentive Performance Materials Inc.
    Inventors: Vikram Kumar, Matthew Pinnow
  • Patent number: 11230563
    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.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: January 25, 2022
    Assignee: Momentive Performance Materials Inc.
    Inventors: Richard W Cruse, Matthew Pinnow
  • Publication number: 20210395582
    Abstract: An adhesive polyorganosiloxane composition includes: (A) a polyorganosiloxane having 2 or more alkenyl groups in each molecule thereof; (B) a polyorganohydrodienesiloxane having 3 or more hydrogen atoms bonded to a silicon atom in each molecule thereof; (C) a platinum-based catalyst; (D) at least two kinds of adhesion-imparting agents selected from the group consisting of specific organic silicon compounds, silane compounds, tetraalkoxysilane compounds, and/or partial hydrolysis condensates thereof; (E) hexamethyldisilazane; (F) water; and (G) at least one of (G1) and (G2), where (G1) is a non-surface-treated inorganic filler having a BET specific surface area of 50 to 500 m2/g, and (G2) is an inorganic filler obtained by surface-treating said (G1) with hexamethyldisilazane.
    Type: Application
    Filed: November 13, 2019
    Publication date: December 23, 2021
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventor: Masanori TAKANASHI
  • Patent number: 11179312
    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
  • Patent number: 11166456
    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
  • Publication number: 20210317313
    Abstract: A thermally conductive polysiloxane composition comprising: (A) a thermally conductive filler; (B) a polyorganosiloxane resin having a curable functional group in the polysiloxane molecule, the polyorganosiloxane resin comprising at least one polysiloxane (b1) having one curable functional group in the molecule thereof; (C) a siloxane compound having an alkoxysilyl group and a linear siloxane structure; (D) a hydrogenpolyorganosiloxane; and (E) a platinum catalyst, wherein the content of the polysiloxane (b1) having one curable functional group in the molecule thereof in the polyorganosiloxane resin (B) is more than 80% by mass.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Atsushi SAKAMOTO, Isao IIDA
  • Patent number: 11142644
    Abstract: The present invention relates to a thermally conductive polysiloxane composition that provides a cured product having excellent tackiness and flexibility in which the composition contains (A) a thermally conductive filler, (B) a siloxane compound having an alkoxysilyl group and a linear siloxane structure, (C) a polyorganosiloxane having at least two alkenyl groups bonded to silicon atoms per molecule, (D1) a linear polyorganohydrogensiloxane represented by the general formula (4), (D2) a polyorganohydrogensiloxane having per molecule at least three units represented by the general formula (5), and (E) a platinum catalyst.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: October 12, 2021
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Daigo Hirakawa, Masanori Takanashi, Atsushi Sakamoto
  • Patent number: 11118056
    Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, and (B) at least one member selected from the group consisting of an alkoxysilyl group-containing compound and a dimethylpolysiloxane. The component (A) includes at least two thermally conductive fillers having different average particle diameters, and (A-1) indefinite-shaped aluminum nitride particles having an average particle diameter of 30 ?m to 150 ?m in an amount of at least 20% by mass, based on the mass of a total of the component (A).
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 14, 2021
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Daigo Hirakawa, Masanori Takanashi, Isao Iida, Kenji Takenaka, Eiji Tanigawa
  • Publication number: 20210277241
    Abstract: There is provided a polyorganosiloxane composition capable of providing a cured product which has low hardness, high transparency, high tensile strength, and low surface tackiness. A curable polyorganosiloxane composition includes: (A) alkenyl group-containing polyorganosiloxane containing straight-chained polyorganosiloxane composed of (A1) both ends alkenyl group polyorganosiloxane having a predetermined viscosity and (A2) polyorganosiloxane having a predetermined viscosity and having 0.6 or more and less than 2 alkenyl groups on average, and (A3) resinous polyorganosiloxane; (B) polyorganohydrogensiloxane composed of (B1) both ends Si—H-containing straight-chained polyorganosiloxane, and (B2) polyorganosiloxane having 3 or more Si—H; and (C) a hydrosilylation reaction catalyst, in mounts that satisfy predetermined relationships.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Kikuo MOCHIZUKI, Masahiro FUJITA
  • Patent number: 11111339
    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