Patents Assigned to Momentive Performance Materials Japan LLC
  • Patent number: 9266994
    Abstract: An expandable polyurethane composition contains (A) a polyisocyanate, (B) an active hydrogen containing compound containing (B1) a polyol and (B2) water, and (C) a cross-linking agent composition. The cross-linking agent composition (C) contains a cross-linking agent (C1) and a carboxylic acid (C2). The cross-linking agent (C1) can be selected from an alkanolamine (a) represented by an expression: HxR1yN((R2O)nH)3-x-y, and an aminosilane (b) represented by an expression: (R3O)qR43-qSi—R5—(NHCH2CH2)pNR6R7. A content of the cross-linking agent composition (C) is 0.1 parts by mass to 20 parts by mass relative to 100 parts by mass of the active hydrogen containing compound (B), and the containing number of moles of the cross-linking agent (C1) is larger than that of the carboxylic acid (C2).
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: February 23, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventor: Toshihisa Nasa
  • Publication number: 20150337189
    Abstract: The present invention provides a material that is cured to efficiently reflect light in the violet and/or ultraviolet wavelength range emitted by optical elements such as LEDs.
    Type: Application
    Filed: December 25, 2013
    Publication date: November 26, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Masanori TAKANASHI, Tatsuru IWABUCHI
  • Publication number: 20150337188
    Abstract: The invention provides a two-pack curable polyorganosiloxane composition having an excellent rapid curing property, and methods for producing an adhered article using the compositions. The two-pack curable polyorganosiloxane composition consisting of a first component and a second component, the composition comprising: (A) an alkenyl group-containing polyorganosiloxane that contains two or more alkenyl groups in the molecule; (B) a polyorganohydrogensiloxane that has two or more hydrogen atoms bonded to a silicon atom in the molecule; and (C) a platinum group catalyst, wherein the ratio of the number of the hydrogen atoms bonded to silicon atoms in (B), HB, to the number of the alkenyl groups in (A), ViA, is 0.5 to 10.0; the content of (C) is 0.5 to 2000 ppm in terms of a platinum group metal; the first component comprises (A) and (C); and the second component comprises (B).
    Type: Application
    Filed: June 21, 2013
    Publication date: November 26, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Makoto SAKAKIBARA, Kazuhisa ONO, Shigeki MATSUSHITA, Koji OKAWA
  • Publication number: 20150299398
    Abstract: The present invention provides a heat curable addition-reactive type silicone rubber composition which gives a molded article having excellent antistatic property, heat resistance, compression set property. A heat curable addition-reactive type silicone rubber composition includes: (A) a mixture containing a heat curable addition-reactive silicone rubber and a curing agent, (B) an ionic liquid in an amount of 30 to 3000 ppm relative to 100 parts by mass of the component (A), wherein the curing agent is not included in the 100 parts by mass, (C) a heterocyclic compound containing nitrogen atoms in an amount of 30 to 3000 ppm relative to 100 parts by mass of the component (A), wherein the curing agent is not included in the 100 parts by mass.
    Type: Application
    Filed: November 1, 2013
    Publication date: October 22, 2015
    Applicant: Momentive Performance Materials Japan LLC
    Inventors: Hiroyoshi IIJIMA, Hideo TAKAHASHI, Hidefumi TAGAI
  • Patent number: 9164197
    Abstract: A silicone rubber composition having a good transparency and hardness is made of a hydrosilylation-curable silicone rubber composition containing (A) 100 parts by mass of an organopolysiloxane, (B) a silicone resin, (C) an organohydrogenpolysiloxane, (D) a rare earth salt of a carboxylic acid represented by general formula (I): (RCOO)nM (I) (in the formula, R denotes a monovalent hydrocarbon group having 4 to 10 carbon atoms, n denotes a number between 3 and 4, and M denotes a rare earth element selected from among cerium (Ce), lanthanum (La), neodymium (Nd), praseodymium (Pr), samarium (Sm) and the like), and (E) a hydrosilylation reaction catalyst.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: October 20, 2015
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventor: Hideo Takahashi
  • Publication number: 20150267021
    Abstract: There are provided a composition for silicone rubber foam, a manufacturing method of a silicone rubber foam, and a silicone rubber foam in which it is possible to control the foaming states. The composition for silicone rubber foam contains: (A) 100 parts by mass of polyorganosiloxane having a degree of polymerization of 4,000 to 10,000 and having two or more alkenyl groups at a content of 0.001 mmol/g or more and less than 0.3 mmol/g; an amount of polyorganohydrogensiloxane having an average of two or more Si-atom-bonded hydrogen atoms so that a molar ratio of the hydrogen atoms to the alkenyl groups in the (A) component is 0.001 to 5; 0.1 to 10 parts by mass of an organic foaming agent with a decomposition temperature of 50 to 250° C.; 5 to 200 parts by mass of silica powder; and a catalyst amount of a platinum-based metal catalyst activated with ultraviolet rays.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventor: Masanari SHIMAKAWA
  • Publication number: 20150270460
    Abstract: The silicone composition for sealing a semiconductor, comprises: (A) 100 parts of a polyorganosiloxane having one or more alkenyl groups, obtained by reacting (a1) 60 to 99 parts of an organosiloxane containing at least a trifunctional siloxane unit not taking part in a hydrosilylation reaction, with (a2) 40 to 1 parts of an organosiloxane containing a bifunctional siloxane unit having an alkenyl group and/or a monofunctional siloxane unit having an alkenyl group; (B) an amount of a polyorganohydrogensiloxane having two or more hydrogen atoms having a viscosity at 25° C. of 1 to 1000 mPa·s so that an amount of the hydrogen atoms is 0.5 to 3.0 mol per mol of the alkenyl groups; and (C) a platinum-based catalysts, wherein a decrease in storage modulus of a cured product thereof from 25° C. to 50° C. is 40% or more.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Kikuo MOCHIZUKI, Akira TAKAGI
  • Publication number: 20150240057
    Abstract: There is provided a room-temperature-curable polyorganosiloxane composition that provides a cured product having little decrease in hardness at high temperature and high humidity, and is excellent in adhesiveness to various base materials. The composition is a two-part room-temperature-curable polyorganosiloxane composition including a main agent composition (A) and a curing agent composition (B). The main agent composition (A) contains, at a predetermined ratio, (c) polyorganosiloxane having a resin structure represented by an average unit formula: (R13SiO1/2)p[Si(OH)xO(4?x)/2]q. The curing agent composition (B) contains (e) a trifunctional or tetrafunctional silane compound or a partial hydrolysis condensate thereof and (f) an amino group-containing silicon compound.
    Type: Application
    Filed: May 8, 2015
    Publication date: August 27, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Prakash KUMAR, Isao IIDA
  • Publication number: 20150232666
    Abstract: An image display sealant dam composition including (A) a polyorganosiloxane having a mercaptoalkyl group bonded to a silicon atom; (B) an aliphatic unsaturated group-containing polyorganosiloxane including an aliphatic unsaturated group-containing linear polyorganosiloxane (B1) and optionally including a branched polyorganosiloxane (B2) having SiO4/2 units, R?3SiO1/2 units and R?2SiO2/2 units, and optionally further having. R?SiO3/2 units, at least three R? groups per molecule of the branched polyorganosiloxane (B2) are aliphatic unsaturated groups; (C) a photoreaction initiator; (D) an aliphatic unsaturated group-containing silane compound; and (E) a fumed silica having a BET specific surface area of 180 to 500 m2/g.
    Type: Application
    Filed: March 28, 2014
    Publication date: August 20, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Kazuhisa Ono, Koji Okawa
  • Publication number: 20150218427
    Abstract: An image display sealant dam composition including (A) a polyorganosiloxane having a mercaptoalkyl bonded to a silicon; (B) an aliphatic unsaturated group-containing polyorganosiloxane including an aliphatic unsaturated group-containing linear polyorganosiloxane (B1), and a branched polyorganosiloxane (B2) having SiO4/2 units, R?3SiO1/2 units and R?2SiO2/2 units, and optionally having R?SiO3/2 units, at least three R? groups per molecule of the branched polyorganosiloxane (B2) are aliphatic unsaturated groups, the proportion of the number of the aliphatic unsaturated groups in (B2) to the total number of the aliphatic unsaturated groups in (B) is more than 50% and not more than 95%; (C) a photoreaction initiator; (D) a silane compound; and (E) an MQ resin having a weight average molecular weight of 2,000 to 2,500,000 and/or an MDQ resin having a weight average molecular weight of 2,000 to 1,000,000.
    Type: Application
    Filed: March 28, 2014
    Publication date: August 6, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Kazuhisa Ono, Koji Okawa
  • Patent number: 9074097
    Abstract: There are provided a composition for silicone rubber foam, a manufacturing method of a silicone rubber foam, and a silicone rubber foam in which it is possible to control the foaming states. The composition for silicone rubber foam contains: (A) 100 parts by mass of polyorganosiloxane having a degree of polymerization of 4,000 to 10,000 and having two or more alkenyl groups at a content of 0.001 mmol/g or more and less than 0.3 mmol/g; an amount of polyorganohydrogensiloxane having an average of two or more Si-atom-bonded hydrogen atoms so that a molar ratio of the hydrogen atoms to the alkenyl groups in the (A) component is 0.001 to 5; 0.1 to 10 parts by mass of an organic foaming agent with a decomposition temperature of 50 to 250° C.; 5 to 200 parts by mass of silica powder; and a catalyst amount of a platinum-based metal catalyst activated with ultraviolet rays.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: July 7, 2015
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventor: Masanari Shimakawa
  • Publication number: 20150140346
    Abstract: This room-temperature-curable polyorganosiloxane composition contains: (A) 100 parts by mass of polyorganosiloxane consisting of: (A1) 10 to 80 parts by mass of a both ends alkoxysilyl group-terminated polyorganosiloxane and (A2) 90 to 20 parts by mass of a partial hydrolysis condensate (the number of Si atoms is 10 to 200) of a silane compound expressed by a general formula: R4bSi(OR)4-b; (B) 0.1 to 15 parts by mass of a silane compound or a partial hydrolysis condensate thereof (the number of Si atoms is 1 or more and less than 10) as a cross-linking agent; and (C) 0.1 to 15 parts by mass of an organic titanium compound as a curing catalyst. It has low viscosity and good coatability without a solvent, and forms a cured coating film excellent in scratch resistance.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Isao IIDA, Yasuhito MORITA
  • Publication number: 20150141586
    Abstract: The invention is directed to phenyl-containing functional polysiloxanes and polycarbonate-polysiloxane copolymer compositions made therefrom having improved optical clarity and better low temperature impact resistance.
    Type: Application
    Filed: May 30, 2014
    Publication date: May 21, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Koji Kanuma, Yataka Horie, Anuj Mittal, Laxmi Samantara, lndumathi Ramakrishnan, Naofumi Kumabe, Narayana Padmanabha Iyer, Samim Alam
  • Patent number: 9034993
    Abstract: A room temperature-curable polyorganosiloxane composition is a two component-type room temperature-curable polyorganosiloxane composition including (A) a base composition and (B) a cross-linking agent composition. The component (A) contains (a1) polyorganosiloxane having a hydroxyl group or an alkoxy group at a molecular end and (a2) an inorganic filler. The component (B) includes (b1) an organosilicon compound having three or more hydrolyzable groups in one molecule, (b2) polyorganosiloxane having an alkoxy group at a molecular end and represented by the following general formula and, and (b3) a curing catalyst. In the two component-type room temperature-curable polyorganosiloxane composition, it is possible to appropriately adjust a compounding ratio of the base component and the cross-linking component according to the use of an automatic mixer/discharger or the like without deteriorating properties such as deep-part curability, curing uniformity, and storage stability.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: May 19, 2015
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Koki Otashiro, Isao Iida
  • Publication number: 20150045487
    Abstract: A method of preparing a curable polyorganosiloxane composition including kneading a uniform mixture of an alkenyl group-containing polyorganosiloxane, a polyorganohydrogensiloxane, and a platinum group metal compound, and defoaming the kneaded mixture under reduced pressure, the alkenyl group-containing polyorganosiloxane includes a linear polyorganosiloxane of the formula (I): , R is R1 or R2, and at least two Rs are R1; R1 is C2-C6 alkenyl; R2 is C1-C6 alkyl; and n is a value that yields a viscosity at 23° C. of 10 to 10,000 cPs, a branched polyorganosiloxane containing SiO4/2 and R?3SiO1/2 units, optionally a R?2SiO and/or a R?SiO3/2, R? represents a monovalent aliphatic or alicyclic, and at least three R? groups per molecule are alkenyls, the alkenyl group-containing polyorganosiloxane having a weight ratio of the branched to linear polyorganosiloxane of 1 to 5; and a number of hydrogens bonded to a silicon atom of the polyorganohydrogensiloxane exceeds 2.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventor: Masanori TAKANASHI
  • Publication number: 20150045466
    Abstract: An expandable polyurethane composition includes (A) polyisocyanate, (B) active hydrogen containing compound including (B1) polyol and (B2) water, a catalyst, and (C) one or more plasticizers selected from the group consisting of a monoester compound, a diester compound, a triester compound, and a tetraester compound by 0.5 to 20 parts by mass relative to 100 parts by mass of the (B1) polyol. A flexible polyurethane foam can be obtained of which wet set is improved and feeling is good.
    Type: Application
    Filed: October 22, 2014
    Publication date: February 12, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Hiroshi SOFUKU, Yuta OGAWA, Toshihisa NASA
  • Publication number: 20150038604
    Abstract: An expandable polyurethane composition includes (A) polyisocyanate, (B) active hydrogen containing compound including (B1) polyol and (B2) water, catalysts, and (C) cross-linking agent composition. The (C) cross-linking agent composition includes at least one kind of (C1) cross-linking agent selected from (CA) ethoxylate derivative having MW of 2000 or less and (CB) ester compound having MW of 2500 or less, and (C2) non-protic polar solvent, and a mass ratio ((a+b)/c) of a sum of content a of the (CA) ethoxylate derivative and content b of the (CB) ester compound relative to content c of the (C2) non-protic polar solvent is 1/10 to 10/1. A flexible polyurethane foam can be obtained of which wet set is improved and feeling is good.
    Type: Application
    Filed: October 22, 2014
    Publication date: February 5, 2015
    Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Hiroshi SOFUKU, Yuta OGAWA, Toshihisa NASA
  • Patent number: 8912262
    Abstract: There is provided a silicone rubber composition whose compression set in a higher temperature range, particularly at 200° C. or higher, in a silicone rubber to be obtained is sufficiently suppressed. A heat curable silicone rubber composition contains: (A) 100 parts by mass of a polyorganosiloxane having an average degree of polymerization of 500 to 20,000 and having two or more alkenyl groups in a molecule; (B) 5 to 100 parts by mass of a filler; (C) an effective amount of an organic peroxide; and (D) 0.06 to 15 parts by mass of a hydrous cerium oxide and/or a hydrous zirconium oxide each having one absorption band in 3300 to 3500 cm?1 and two or more absorption bands in 1300 to 1700 cm?1 in infrared absorption spectrum measurement.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: December 16, 2014
    Assignee: Momentive Performance Materials Japan LLC
    Inventor: Hideo Kondo
  • Patent number: 8871857
    Abstract: A coating composition contains (A) a water-based emulsion containing (a) amino group-containing polyorganosiloxane having a self crosslinking property, (b) chlorinated polyolefin, and (c) a water dispersible polyurethane resin, and (B) spherical particles made up of a rubbery elastic body mixed and dispersed in the water-based emulsion (A). The water-based emulsion (A) can be obtained by mixing a first emulsion containing the amino group-containing polyorganosiloxane (a), a second emulsion containing the chlorinated polyolefin (b), and the water dispersion of the polyurethane resin (c). The coating composition can form a coating film excellent in preservation stability, coating uniformity, working life, having good non-tackness, water repellancy, lubricity, and excellent in adhesiveness and abrasion resistance.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: October 28, 2014
    Assignee: Momentive Performance Materials Japan LLC
    Inventors: Masanori Kimura, Toshio Yamato
  • Patent number: 8865784
    Abstract: There are provided a composition for silicone rubber foam, a manufacturing method of a silicone rubber foam, and a silicone rubber foam in which it is possible to control the foaming states. The composition for silicone rubber foam contains: (A) 100 parts by mass of polyorganosiloxane having a degree of polymerization of 4,000 to 10,000 and having two or more alkenyl groups at a content of 0.001 mmol/g or more and less than 0.3 mmol/g; an amount of polyorganohydrogensiloxane having an average of two or more Si-atom-bonded hydrogen atoms so that a molar ratio of the hydrogen atoms to the alkenyl groups in the (A) component is 0.001 to 5; 0.1 to 10 parts by mass of an organic foaming agent with a decomposition temperature of 50 to 250° C.; 5 to 200 parts by mass of silica powder; and a catalyst amount of a platinum-based metal catalyst activated with ultraviolet rays.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: October 21, 2014
    Assignee: Momentive Performance Materials Japan LLC
    Inventor: Masanari Shimakawa