Wherein One Of Said Silicon Materials Contains Si-h Bond Patents (Class 525/478)
  • Patent number: 8658755
    Abstract: Provided is a silicon-containing curable composition which includes a prepolymer (A) containing two or more Si—H groups in one molecule, which is obtained by subjecting one or more kinds of a cyclic siloxane compound (?) represented the following formula (1) and one or more kinds of a compound (?) represented by the following formula (2), to a hydrosilylation reaction; a cyclic siloxane compound (B) containing, in one molecule, two or more carbon-carbon double bonds that are reactive with Si—H groups; a polysiloxane compound (C) which is different from the prepolymer (A) and the cyclic siloxane compound (B); and a hydrosilylation catalyst (D). In formula (1), R1 to R3 each represent an alkyl group having 1 to 6 carbon atoms, or a phenyl group; a represents a number from 2 to 10; and b represents a number from 0 to 8. In formula (2), n represents the number 1 or 2.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 25, 2014
    Assignee: Adeka Corporation
    Inventor: Masako Saito
  • Patent number: 8637627
    Abstract: A curable phenoxyphenyl polysiloxane composition is disclosed. A cured phenoxyphenyl polysiloxane composition is further disclosed, along with a method of making that cured phenoxyphenyl polysiloxane composition from the curable phenoxyphenyl silicon composition. An encapsulated semiconductor device, and a method of making that encapsulated semiconductor device by coating a semiconductor element of a semiconductor device with cured phenoxyphenyl polysiloxane are further disclosed.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: January 28, 2014
    Assignee: Rohm and Haas Company
    Inventors: Kathleen A. Auld, David M. Conner, Garo Khanarian, David Wayne Mosley
  • Patent number: 8637628
    Abstract: One embodiment is related to a silicone composition for sealing a light emitting element, the composition comprising: (A) a vinyl group-containing organopolysiloxane having a three-dimensional network structure; (B) an organohydrogenpolysiloxane which has at least two hydrogen atoms, each hydrogen atom being bonded to a silicon atom per molecule; and (C) a hydrosilylation catalyst.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: January 28, 2014
    Assignee: Momentive Performance Materials Japan LLC
    Inventors: Kikuo Mochizuki, Nobuo Hirai
  • Patent number: 8628858
    Abstract: Disclosed is a millable type silicone rubber composition including as an essential components: (A) 100 parts by weight of an organopolysiloxane represented by the following average compositional formula (I) and having a polymerization degree of at least 100; R1aSiO(4-a)/2??(I) wherein R1 are, identical or different, unsubstituted or substituted monovalent hydrocarbon groups, and a is a positive number of 1.95 to 2.05; (B) 70 to 150 parts by weight of fumed silica having a specific surface area of more than 200 m2/g; (C) 0.1 to 30 parts by weight of an organohydrogenpolysiloxane having at least two hydrogen atoms bonded to silicon atoms in one molecule; and (D) 0.1 to 10 parts by weight of a hydrosilylation reaction catalyst.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: January 14, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Minoru Igarashi, Tsutomu Nakamura, Atsuo Ito, Tomoyoshi Furihata, Hyung-Bae Kim
  • Patent number: 8629222
    Abstract: The present invention provides a curable polysiloxane composition which is excellent in light resistance (particularly ultraviolet resistance) and adhesion and has a sufficient heat resistance/hydrothermal resistance and film-forming property and which generates little foaming at curing and does not generate cracks, peeling, coloring, and foaming even when used for a long period of time. A curable polysiloxane composition which comprises a specific hydrosilyl group-containing polysiloxane compound, a specific polysiloxane compound comprising two or more silanol groups in one molecule, and a dehydrogenative condensation reaction catalyst.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 14, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Kenichi Takizawa, Yoshiaki Koyashiki, Hiroshi Kobayashi, Masahito Shinbara, Hanako Kato, Mari Abe, Masanori Yamazaki, Yutaka Mori
  • Patent number: 8618234
    Abstract: Silicone-based pressure-sensitive adhesive composition comprising 100 parts (A) a branched organopolysiloxane having on molecular terminals at least two alkenyl groups and represented by (R3SiO1/2)4-p(R1R2SiO1/2)p(R2SiO)m(RR1SiO)n(SiO4/2), to 400 parts (B) an organopolysiloxane composed of R3R22SiO1/2 units and SiO4/2 units, (C) an organohydrogenpolysiloxane, and a catalytic quantity of (D) a platinum-type catalyst. Pressure-sensitive adhesive tape or sheet having an adhesive layer in the form of a cured layer of the aforementioned composition.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: December 31, 2013
    Assignees: Dow Corning Corporation, Dow Corning Toray Company, Ltd.
    Inventors: Haruna Mizuno, Robert Alan Ekeland, Seiji Hori, Takateru Yamada
  • Patent number: 8614282
    Abstract: A silicone resin composition comprising (A) an organopolysiloxane containing silicon-bonded aryl and alkenyl groups in a molecule, (B) an organohydrogenpolysiloxane, and (C) an addition reaction catalyst is low gas permeable. An optoelectronic device encapsulated therewith is highly reliable.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: December 24, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihira Hamamoto, Tsutomu Kashiwagi
  • Patent number: 8603638
    Abstract: The present invention provides rubber sealing members having an exterior surface adapted to sealingly engage an inner surface of a chamber of the medical device, the exterior surface of the sealing member having a coating thereon prepared from a curable composition including: (a) a first organopolysiloxane having at least two alkenyl groups; and (b) a second organopolysiloxane having at least two pendant hydrogen groups, the second organopolysiloxane being different from the first organopolysiloxane, wherein at least one of the first organopolysiloxane, the second organopolysiloxane or an optional third organopolysiloxane of the curable composition comprises a fluoro group.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 10, 2013
    Assignee: Becton, Dickinson and Company
    Inventors: Yongming Liu, Xia Zhao
  • Patent number: 8598282
    Abstract: The object of the present invention is to provide a silicone resin composition for encapsulating an optical semiconductor element which has strong adhesiveness to a substrate and provide an optical semiconductor element which has high reliability. The present invention provides a silicone resin composition comprising an organopolysiloxane (A) having at least two alkenyl groups per molecule, a liner organohydrogenpolysiloxane (B-1) which has hydrogen atoms each bonded to a silicon atom at the both terminals and a liner organohydrogenpolysiloxane (B-2) which has a hydrogen atom bonded to a silicon atom at one terminal and a hydroxyl or alkoxy group bonded to a silicon atom at the other terminal, a branched organohydrogenpolysiloxane (C) having at least three hydrosilyl groups per molecule, a catalytic (D), and a condensation catalyst (E). The present invention also provides an optical semiconductor device provided with a cured product thereof.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: December 3, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihira Hamamoto, Tsutomu Kashiwagi
  • Patent number: 8592534
    Abstract: Provided are poly(ferrocenyl)silane based network polymers, methods of preparing the same, and films including the poly(ferrocenyl)silane based network polymers. The network polymers have a steric network structure and are prepared by using a simplified process.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: November 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moon Gyu Han, Gennadi A. Emelchenko, Alexander M. Kalsin, Nikolai A. Ustynyuk, Tatyana A. Peganova
  • Patent number: 8586191
    Abstract: The field of the invention is that of articles adhesive to the skin for medical or paramedical use. The invention relates to an article adhesive to the skin.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: November 19, 2013
    Assignee: Bluestar Silicones France
    Inventors: Gilles Lorentz, Francois Martin
  • Publication number: 20130293808
    Abstract: A curable composition and use thereof are provided. The exemplary curable composition can show excellent processability and workability. Also, the curable composition can have a high refractive index before or after curing. The composition has low moisture permeability before or after curing and shows excellent crack resistance, thermal shock resistance, adhesive property and hardness. In addition, the composition does not cause color change such as whitening under a high-temperature or high-humidity condition, and does not exhibit stickiness on a surface thereof. The curable composition may be used as an adhesive material or as an encapsulation material for semiconductor devices such as an LED, a CCD, a photo coupler, or a photovoltaic cell.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 7, 2013
    Inventors: Bum Gyu CHOI, Min Jin KO, Myung Sun MOON, Jae Ho JUNG, Dae Ho KANG, Min Kyoun KIM, Byung Kyu CHO
  • Publication number: 20130289153
    Abstract: In general, the present invention relates to optical elements, which can be modified post-manufacture such that different versions of the element will have different optical properties. In particular, the present invention relates to lenses, such as intraocular lenses, which can be converted into aspheric lenses post-fabrication. Also, the present invention relates to a method for forming aspheric lenses post-fabrication.
    Type: Application
    Filed: June 28, 2013
    Publication date: October 31, 2013
    Inventors: Christian A. Sandstedt, Pablo Artal, Eloy Angel
  • Patent number: 8569429
    Abstract: An optical semiconductor device that combines low gas permeability and high reliability. A curable silicone resin composition comprising: (A) an alkenyl group-containing organopolysiloxane comprising an organopolysiloxane represented by an average composition formula (1) and containing at least two alkenyl groups per molecule: (R1SiO3/2)a(R22SiO)b(R3R42SiO1/2)c??(1) wherein R1 represents an alkyl group, R2 represents an aryl group, R3 represents an alkenyl group, and R4 represents an alkyl group or an aryl group, (B) an organohydrogenpolysiloxane represented by an average composition formula (2) and containing at least two silicon atom-bonded hydrogen atoms per molecule: R1dR2eHfSiO(4-d-e-f)/2??(2) wherein R1 and R2 are as defined above, and (C) an addition reaction catalyst.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 29, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihira Hamamoto, Tsutomu Kashiwagi
  • Publication number: 20130270993
    Abstract: This organic electroluminescent element sealing composition contains an addition reaction curing type silicone composition which is liquid at normal temperature and has a curing temperature of 100 degrees C. or below and a moisture content of 400 ppm or less. The addition reaction curing type silicone composition contains (A) polyorganosiloxane having an average of 0.2 to 5 alkenyl groups bonded to silicon atoms in one molecule, (B) polyorganohydrogensiloxane having at least two or more hydrogen atoms bonded to silicon atoms in one molecule, and (C) a platinum-based catalyst. The organic electroluminescent element sealing composition can prevent deterioration of the organic electroluminescent element and can provide the organic light-emitting device having a good light-emitting property for a long period.
    Type: Application
    Filed: October 4, 2012
    Publication date: October 17, 2013
    Inventors: Koji OKAWA, Osamu TAMURA
  • Publication number: 20130273281
    Abstract: Polyarylene sulfide compositions are described as are methods of forming the polyarylene sulfide compositions. The polyarylene sulfide compositions are formed by melt processing polyarylene sulfide, a silane coupling agent and a silicone elastomer. The silane coupling agent is, e.g., an amino silane coupling agent and the silicone elastomer can be a poly(dimethyl siloxane). The compositions exhibit good strength and heat resistance characteristics and can be utilized in forming a variety of products such as pipes and houses, automotive components and electrical components.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 17, 2013
    Inventors: Rong Luo, Xinyu Zhao
  • Patent number: 8541103
    Abstract: The present invention provides silicone polymer particles having excellent tensile properties and excellent transparency and also provides a silicone composition. The present invention relates to silicone polymer particles having a silicone core-alkoxysilane condensate shell structure in which silicone particles with a volume-average particle diameter of 0.001 ?m to 1.0 ?m are coated with an alkoxysilane condensate, and also relates to a silicone composition containing (A) the silicone polymer particles, (B) a polyorganosiloxane having at least one alkenyl group in its molecule, and (C) a curing agent. The present invention further relates to respective manufacturing methods of the silicone polymer particles and the silicone composition.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: September 24, 2013
    Assignee: Kaneka Corporation
    Inventors: Yoshifumi Fukui, Satoshi Sugiyama, Akira Takaki
  • Patent number: 8524842
    Abstract: Gels having viscoelastic qualities, physical stability and adhesive properties, well suited for a wide variety of end applications, are prepared by crosslinking, by hydrosilylation, silicone compositions which contain: a polyorganosiloxanes POS (I) of SiH type; a polyorganosiloxanes POS (II) of SiVi type (Vi=vinyl); a polyorganosiloxanes POS (III) of monofunctional SiVi type; a platinum-based catalyst (D); and optionally, a polyorganosiloxanes POS (IV) of polydimethylsiloxane type.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: September 3, 2013
    Assignee: Bluestar Silicones France SAS
    Inventors: Bernd Jung, Joerg Dienemann, Catherine George
  • Publication number: 20130224416
    Abstract: Provided are a silicone adhesive composition for a window film, and a window film using same, wherein the composition has excellent release properties for easy release from a window, and also has excellent compatibility with a UV absorbent. The silicone adhesive composition for a window film, according to the present invention, is characterized by comprising: a) 100 parts by weight of a combination of a silicone adhesive and a silicone release agent; b) 1 to 10 parts by weight of a crosslinking agent; c) 0.1 to 2 parts by weight of a platinum based catalyst; and d) 0.1 to 5 parts by weight of an anchoring agent, wherein the weight ratio of the silicone adhesive to the silicone release agent is in the range of 1:1 to 1:0.2.
    Type: Application
    Filed: November 7, 2011
    Publication date: August 29, 2013
    Applicant: LG HAUSYS, LTD.
    Inventors: Ik-Hwan Cho, Tae-Hwa Lee
  • Patent number: 8519064
    Abstract: An encapsulated material composition is presented, which contains a compound of Chemical Formula I and a compound of Chemical Formula II, and has high refractive index due to the cycloalkane structure in the compound of Chemical Formula I and the compound of Chemical Formula II. Therefore, when the encapsulated material composition is applied in the light emitting diode (LCD) encapsulated structure, the light extraction efficiency of the LED encapsulated structure is effectively enhanced.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: August 27, 2013
    Assignee: Indial Technology Co., Ltd
    Inventors: Reui Hong Gao, Mao Ping Lee, Juei Kuo Wu, Jui Jung Wu
  • Patent number: 8512869
    Abstract: A silicon composition with a silicon compound represented by Formula 1 and a silicon compound represented by Formula 2: wherein, R1, R2, R3, R4, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are each independently a C1-C4 alkyl group, R5, R6, R7, R8, R9, and R10 are each independently hydrogen or deuterium, k, m, and n are positive integers, and the ratio of k to the sum of m and n is from about 1:0.001 to about 1:0.2; and an organic light emitting device including the same.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh-June Kwon, Seung-Yong Song, Young-Seo Choi, Ji-Hun Ryu, Young-Cheol Joo, Jin-Hwan Jeon, Sun-Young Jung
  • Patent number: 8513352
    Abstract: The invention relates to curable compositions comprising a) at least one organic polymer selected from polyethers and polyacrylic acid esters, wherein the organic polymer has at least one defined, cross-linkable end group having at least one C1-C8-alkoxy- or C1-C8-acyloxy radical, b) at least one poly(dialkylsiloxane) having at least one defined, cross-linkable end group having at least one vinyl radical and likewise at least one C1-C8-alkoxy- or C1-C8-acyloxy radical and c) at least one flame-retarding additive selected from red phosphorus, organic phosphor compounds, ammonia polyphosphate, metal hydroxides, expandable graphite, zinc borate and melamine salts, to the use of such compositions as adhesive, sealing or coating material, in particular for providing a substrate having a flame-retardant, elastic coating, to a coating thus obtained and to the use of at least one poly(dialkylsiloxane) b) to improve the fire properties of a curable composition comprising at least one organic polymer a).
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 20, 2013
    Assignee: Henkel AG & Co. KGaA
    Inventors: Matthias Kohl, Andreas Bolte, Nick Spielkamp, Manfred Pröbster, Deniz Yilmazoglu
  • Publication number: 20130200554
    Abstract: Silicone fibers suitable for use as optical fibers are prepared by crosslinking an extruded mixture of a silicone resin and an organopolysiloxane, both containing aliphatically unsaturated groups, an organopolysiloxane bearing Si—H groups, and a light activatable trimethyl(methylcyclopentadienyl) platinum catalyst.
    Type: Application
    Filed: October 19, 2011
    Publication date: August 8, 2013
    Applicant: WACKER CHEMIE AG
    Inventor: Philipp Mueller
  • Publication number: 20130192739
    Abstract: Sulfur contaminants, such as elemental sulfur (S8), hydrogen sulfide and other sulfur components in fluids (e.g., air, natural gas, and other gases, as well as water and other liquids) are removed using a silicone-based chemical filter/bath. In one embodiment, a silicone-based chemical filter includes a membrane having a cross-linked silicone that is a reaction product of an olefin and a polyhydrosiloxane. For example, sulfur contaminants in air may be removed by passing the air through the membrane before the air enters a data center or other facility housing computer systems. In another embodiment, a silicone-based chemical bath includes a housing having an inlet port, an outlet port, and a chamber containing a silicone oil. For example, sulfur contaminants in air may be removed by passing the air through the silicone oil in the chamber before the air enters a data center or other facility housing computer systems.
    Type: Application
    Filed: March 13, 2013
    Publication date: August 1, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: INTERNATIONAL BUSINESS MACHINES CORPORATION
  • Patent number: 8492487
    Abstract: A thermosetting fluoropolyether adhesive composition is provided. This composition cures at lower than 100° C., and the cured product exhibits good adhesion to various substrates and excellent adhesion durability at a temperature of up to 150° C. A method for adhering the composition to the substrate is also provided.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: July 23, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hidenori Koshikawa, Mikio Shiono
  • Patent number: 8487020
    Abstract: Aqueous suspensions of silicate shell microcapsules are disclosed wherein a first portion of the silicate shell micro-capsules contain an organopolysiloxane having at least two alkenyl groups and a hydrosilylation catalyst as Part A of a curable siloxane composition, and a second portion of the silicate shell microcapsules contain an organohydrogensiloxane as Part B of the curable siloxane composition.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: July 16, 2013
    Assignee: Dow Corning Corporation
    Inventors: Fabrizio Galeone, Axel Kretschmer, Leon Marteaux, Jean-Thierry Simonnet, Brett Lee Zimmerman
  • Patent number: 8481640
    Abstract: The invention relates to a water-insoluble hydrophilic polymer network comprising polyorganosiloxane polyoxyalkylene block copolymer moieties characterized that they are linked to each other through an organosilicon cross-linking moiety, provided that the cross-linking moiety forming the links between polyorganosiloxane polyoxyalkylene block copolymer moieties result from an addition reaction between cross-linking sites present on the polyorganosiloxane polyoxyalkylene block copolymer moieties prior to formation of the hydrophilic polymer network, selected from silicon-bonded hydrogen atoms and aliphatically unsaturated groups, and reactive groups present on the cross-linking moiety prior to formation of the hydrophilic polymer network. Also disclosed is a process for making the polymer network, and a curable composition able to be reacted into such polymer network.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: July 9, 2013
    Assignee: Dow Corning Corporation
    Inventors: Helen L. Gough, Iain A. MacKinnon, Sarah O'Hare, Geraldine Durand
  • Patent number: 8481656
    Abstract: A silicone resin composition that exhibits low gas permeability and is suitable for encapsulating optical semiconductors. The composition includes: (A) an organopolysiloxane having a specific structure containing two or more alkenyl groups, (B) an organohydrogenpolysiloxane composed of two organohydrogenpolysiloxanes having specific structures, in which the mass ratio between the two organohydrogenpolysiloxanes is within a range from 10:90 to 90:10, in an amount that provides 0.4 to 4.0 mols of silicon atom-bonded hydrogen atoms within the component (B) per 1 mol of alkenyl groups within the component (A), and (C) an addition reaction catalyst.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: July 9, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tsutomu Kashiwagi, Yoshihira Hamamoto
  • Patent number: 8470937
    Abstract: Provided are a curable composition for semiconductor encapsulation which produces a cured product that is excellent in heat resistance, electrical insulation properties at high temperatures, flexibility and heat cycle resistance, and a semiconductor device encapsulated by curing this curable composition. Specifically, there is provided a curable composition for semiconductor encapsulation containing, as component (A), a particular SiH group-containing siloxane compound; as component (B), a particular vinyl group-containing siloxane compound; as component (C), a compound having at least three SiH groups or at least three vinyl groups; and as component (D), a hydrosilylation catalyst.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: June 25, 2013
    Assignee: Adeka Corporation
    Inventors: Ken-ichiro Hiwatari, Isamu Yumoto
  • Patent number: 8450442
    Abstract: A borosiloxane composition comprising a borosiloxane having an average of at least two alkenyl groups per molecule, an organosilicon compound having an average of at least two silicon-bonded hydrogen atoms per molecule, and a hydrosilylation catalyst; a borosiloxane adhesive comprising a cured product of at least one borosiloxane; and a coated substrate and a laminated substrate, each comprising the borosiloxane adhesive.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: May 28, 2013
    Assignee: Dow Corning Corporation
    Inventor: Bizhong Zhu
  • Publication number: 20130131264
    Abstract: The present invention aims to provide a polysiloxane composition which exhibits high heat and light resistance, and excellent gas-barrier properties. The polysiloxane composition of the present invention includes: (A) a modified polyhedral polysiloxane which is obtained by modifying (a) an alkenyl group-containing polyhedral polysiloxane compound with (b) a hydrosilyl group-containing compound; and (B) an organopolysiloxane containing at least two alkenyl groups in a molecule, wherein the polysiloxane composition after curing has a water vapor permeability of not more than 30 g/m2/24 h, and the polysiloxane composition includes (B1) an aryl group-containing organopolysiloxane as the organopolysiloxane (B), and/or (C) a component which is (C1) an organosilicon compound that contains one alkenyl or hydrosilyl group in a molecule, or (C2) a cyclic olefin compound that contains one carbon-carbon double bond in a molecule.
    Type: Application
    Filed: May 23, 2011
    Publication date: May 23, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Yoshitaka Nishimiya, Hiroyuki Tanaka, Satoshi Sugiyama, Takao Manabe
  • Patent number: 8440312
    Abstract: A curable composition contains (A) a polyorganosiloxane base polymer having an average per molecule of at least two aliphatically unsaturated organic groups, optionally (B) a crosslinker having an average per molecule of at least two silicon bonded hydrogen atoms, (C) a catalyst, (D) a thermally conductive filler, and (E) an organic plasticizer. The composition can cure to form a thermally conductive silicone gel or rubber. The thermally conductive silicone rubber is useful as a thermal interface material, in both TIM1 and TIM2 applications. The curable composition may be wet dispensed and then cured in situ in an (opto)electronic device, or the curable composition may be cured to form a pad with or without a support before installation in an (opto)electronic device.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: May 14, 2013
    Assignee: Dow Corning Corporation
    Inventor: G. M. Fazley Elahee
  • Patent number: 8440311
    Abstract: The general field of the invention is that of airbags. The invention relates to a process for improving the tear strength and the combing strength of coated fabrics intended for uses in the field of inflatable bags using a silicone composition comprising an additive containing a polyorganosiloxane resin (V) and a calcium carbonate. After coating the composition onto the fabric supports and curing, the coated supports not only have optimum adhesion and crease resistance properties, but also have good properties in terms of combing strength and tear strength.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: May 14, 2013
    Assignee: Bluestar Silicones France SAS
    Inventors: Laurent Dumont, Alain Pouchelon
  • Patent number: 8436107
    Abstract: The present invention relates to mold release agents. More particularly, it relates to a two-component, high gloss, semi permanent water-based mold release agent.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: May 7, 2013
    Assignee: Henkel Corporation
    Inventors: Zheng Lu, Joseph Schulz
  • Patent number: 8431953
    Abstract: [Object] To provide a silicone resin composition for optical semiconductor devices, which has a low gas permeability and high dependability. [Means for solution] The silicone resin composition of the present invention contains the following components (A) through (D): (A) an organopolysiloxane as shown in the following general formula (1) in which the number of alkenyl groups contained per one molecule is two or more (R1SiO3/2)x(R23SiO1/2)y(R22SiO2/2)z??(1) (wherein R1 is a cycloalkyl group, R2 is either one kind of or more than one kind of substituted or non-substituted monovalent hydrocarbon group having 1-10 carbon atoms, x is 0.5-0.9, y is 0.1-0.5, z is 0-0.2, and x+y+z=1.0), (B) a hydrogen organopolysiloxane containing at least two SiH groups per one molecule, (C) a catalyst for addition reaction, (D) an adhesion promoter agent.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: April 30, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihira Hamamoto, Tsutomu Kashiwagi
  • Publication number: 20130099395
    Abstract: A silicone resin composition contains a cage octasilsesquioxane having a group represented by the following formula (1), an alkenyl group-containing polysiloxane containing an alkenyl group having a number of moles larger than that of a hydrosilyl group in the cage octasilsesquioxane, a hydrosilylation catalyst, and an organohydrogenpolysiloxane. (where, in formula, R1 represents a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group. R2 represents hydrogen or a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group. The molar ratio of the monovalent hydrocarbon group:hydrogen in R2 in the cage octasilsesquioxane as a whole is, as an average value, in the range of 6.5:1.5 to 5.5:2.5.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 25, 2013
    Inventors: Haruka ONA, Hiroyuki KATAYAMA
  • Patent number: 8425711
    Abstract: To provide a glass substrate with protective glass which suppresses formation of microscopic scratches on the back surface of the glass substrate in the production process for a display device, and which prevents a strength decrease in the process or formation of etch pits after a chemical etching treatment; a process for producing a display device by using the glass substrate with protective glass; and a double-sided removable resin sheet for the glass substrate with protective glass. A glass substrate with protective glass, which comprises a glass substrate and a protective glass plate laminated on each other, and which is characterized in that the glass substrate and the protective glass plate are laminated by a double-sided removal resin sheet.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: April 23, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Toshihiko Higuchi, Satoru Takaki
  • Patent number: 8420712
    Abstract: To provide a silicone impression material having high viscosity of a kneaded material before curing and low hardness after curing. A dental silicone impression material composition includes: A) an organopolysiloxane mixture comprising a) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbons in one molecule and having viscosity of 1,000,000 mPa·s or more at 25° C., and b) an organopolysiloxane having at least one aliphatic unsaturated hydrocarbon in one molecule and having viscosity of 100 to 5,000 mPa·s at 25° C., wherein a ratio of a):b) is 1:0.5 to 10; B) an organohydrogenpolysiloxane having at least three hydrogen atoms directly bonded to a silicon atom in one molecule; C) a silicone-soluble platinum compound; D) an organopolysiloxane not having a functional group; and E) an inorganic filler.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 16, 2013
    Assignee: GC Corporation
    Inventors: Hiroshi Kamohara, Shouichi Fukushima
  • Patent number: 8408276
    Abstract: An organo-modified silicone obtained by an addition reaction of (I) a chain silicone represented by formula (1): wherein the formula (1), R1s represent hydrocarbon groups having 1 to 3 carbon atoms, and a and b are numbers satisfying conditions represented by the following formulae (i) to (iii): 0?a?195??(i) 5?b??(ii) 10?a+b?200??(iii), with (II) a hydrocarbon such as monoolefins and aromatic hydrocarbons, and (III) a di(meth)acrylic acid ester, at a molar ratio satisfying conditions represented by the following formula (iv): {the chain silicone}:{the hydrocarbon}:{the di(meth)acrylic acid ester}=A:B:C??(iv) wherein the formula (iv), A represents a number of moles of the chain silicone, and B and C are numbers satisfying conditions represented by the following formulae (v) and (vi): 0.05A?C?A??(v) A×b?2C=B??(vi) in the presence of a hydrosilylation catalyst.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: April 2, 2013
    Assignee: Nicca Chemical Co., Ltd.
    Inventor: Takahiro Kondou
  • Publication number: 20130071673
    Abstract: A heat-curable polyorganosiloxane composition which includes (A) an alkenyl group-containing linear polyorganosiloxane represented by the following formula (I): wherein Ra represents a C2-C6 alkenyl and Rb represents a C1-C6 alkyl or a phenyl; (B1) a linear polyorganohydrogensiloxane represented by the following formula (II): wherein Rc is hydrogen and Rd represents a C1-C6 alkyl or a phenyl; (B2) a cyclic polyorganohydrogensiloxane including an Re2HSiO1/2 unit, wherein Re represents a hydrogen atom or C1-C6 alkyl group, and an SiO4/2 unit, and having three or more hydrogen atoms bonded to a silicon atom in one molecule; (C) a platinum series catalyst; and (D) an adhesion promoter, a ratio of a sum (HB1+HB2) of a number HB1 of the hydrogen atom(s) bonded to a silicon atom of (B1) and a number HB2 of the hydrogen atom(s) bonded to a silicon atom of (B2) based on a number ViA of the alkenyl group(s) of (A) is 0.2 to 1.0, and HB1 is 0.5 to 0.8 based on HB1+HB2.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 21, 2013
    Inventors: Koji Okawa, Kazuhisa Ono
  • Patent number: 8389650
    Abstract: A curable polyorganosiloxane composition for use in an LED or optical lens, including: (A) an alkenyl group-containing polyorganosiloxane which contains a (A1) branched polyorganosiloxane including an SiO4/2 unit and an R3SiO1/2 unit, and optionally an R2SiO unit and/or an RSiO3/2 unit, wherein at least three R per molecule are vinyl groups, and optionally (A2) a linear polyorganosiloxane having R bonded to a silicon atom, wherein at least two R per molecule are vinyl groups, wherein 100 mol % or more of the R present in components (A1) and (A2), excluding alkenyl groups, are methyl groups; (B) a polyalkylhydrogensiloxane including an SiO4/2 unit and an R3(CH3)2SiO1/2 unit, the polyalkylhydrogensiloxane having the formula [R3(CH3)2SiO1/2]8[SiO4/2]4 or [R3(CH3)2SiO1/2]10[SiO4/2]5, wherein each R3 represents a hydrogen atom, and (C) a platinum-vinylsiloxane complex. The composition having desirable light transmission properties, and is unlikely to suffer yellowing due to exposure to heat.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 5, 2013
    Assignee: Momentive Performance Materials Japan LLC
    Inventors: Masanori Takanashi, Hideki Kobayashi
  • Patent number: 8373196
    Abstract: A composition for encapsulating optical semiconductors. The composition comprises (A) a mixture of a linear alkenyl group-containing organopolysiloxane and an alkenyl group-containing organopolysiloxane resin containing at least one SiO2 unit, (B) a mixture of a linear organohydrogenpolysiloxane containing two or more SiH groups and a branched organohydrogenpolysiloxane that is liquid at 25° C., (C) a platinum group metal catalyst, and (D) a linear or cyclic organopolysiloxane having at least two functional groups selected from the group consisting of alkenyl groups, alkoxysilyl groups and epoxy groups bonded to silicon atoms. A cured product of the composition exhibits dramatically reduced surface tack, and therefore using the composition for encapsulating optical semiconductor elements improves the optical semiconductor device yield.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: February 12, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tsutomu Kashiwagi, Masanobu Sato
  • Patent number: 8362141
    Abstract: An addition curable self-adhesive silicone rubber composition comprising (A) an organopolysiloxane containing at least two alkenyl groups, (B) an organohydrogenpolysiloxane containing at least three SiH groups, (C) an aromatic ring-free organohydrogenpolysiloxane containing at least two SiH groups, and (F) an addition reaction catalyst, with a SiH/alkenyl molar ratio ranging from 0.8 to 5.0, is briefly moldable and cures to various metals and organic resins.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: January 29, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Nobu Kato, Noriyuki Meguriya, Toshio Yamazaki
  • Patent number: 8357762
    Abstract: An organopolysiloxane is prepared by hydrolysis and polycondensation of an organosilicon compound in the presence of a liquid hydrolytic condensation catalyst which is separable. The organopolysiloxane contains a high proportion of cyclic polysiloxanes and has a sharp molecular weight distribution due to minimized monomer and polymer contents.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: January 22, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Hideyoshi Yanagisawa
  • Patent number: 8344075
    Abstract: A hybrid siloxane polymer, an encapsulant, and an electronic device, the hybrid siloxane polymer including a linear first siloxane resin including moieties represented by the following Chemical Formulas 1a and 1b, the first siloxane resin including double bonds at both terminal ends thereof, and a second siloxane resin having a reticular structure:
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: January 1, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Woo-Han Kim, June-Ho Shin, Sang-Ran Koh, Sung-Hwan Cha, Hyun-Jung Ahn
  • Patent number: 8343632
    Abstract: The present invention relates to curable alkenyl based silicone release coating compositions having improved adhesion to paper and polymeric substrates. Furthermore the present invention relates to the process for making a silicone release coating with improved adhesion to paper and polymeric substrates.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: January 1, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Roy Melvin Griswold, Richard Paul Eckberg, Slawomir Rubinsztajn, Stanislaw Slomkowski, Anna Kowalewska, Stanislaw Sosnowski
  • Publication number: 20120329942
    Abstract: The invention relates to curable compositions comprising a) at least one organic polymer selected from polyethers and polyacrylic acid esters, wherein the organic polymer has at least one defined, cross-linkable end group having at least one C1-C8-alkoxy- or C1-C8-acyloxy radical, b) at least one poly(dialkylsiloxane) having at least one defined, cross-linkable end group having at least one vinyl radical and likewise at least one C1-C8-alkoxy- or C1-C8-acyloxy radical and c) at least one flame-retarding additive selected from red phosphorus, organic phosphor compounds, ammonia polyphosphate, metal hydroxides, expandable graphite, zinc borate and melamine salts, to the use of such compositions as adhesive, sealing or coating material, in particular for providing a substrate having a flame-retardant, elastic coating, to a coating thus obtained and to the use of at least one poly(dialkylsiloxane) b) to improve the fire properties of a curable composition comprising at least one organic polymer a).
    Type: Application
    Filed: July 26, 2012
    Publication date: December 27, 2012
    Applicant: Henkel AG & Co. KGaa
    Inventors: Matthias Kohl, Andreas Bolte, Nick Spielkamp, Manfred Pröbster, Deniz Yilmazoglu
  • Patent number: 8338351
    Abstract: A coating composition and process for generating transparent, near-transparent, and semi-transparent super-hydrophobic coatings on surfaces having a contact angle of greater than 165 degrees. The composition comprises hydrophobic nanoparticles of silsesquioxanes containing adhesion promoter groups and low surface energy groups.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: December 25, 2012
    Assignee: Ashland Licensing and Intellectual Property, LLC
    Inventors: Subbareddy Kanagasabapathy, Richard J. Baumgart, Wen-Chen Su, Frances E. Lockwood, Vinod Kanniah
  • Publication number: 20120319154
    Abstract: A silicone resin composition includes a cage octasilsesquioxane; a polysiloxane containing alkenyl groups at both ends containing an alkenyl group having the number of moles smaller than the number of moles of the hydrosilyl group of the cage octasilsesquioxane; a hydrosilylation catalyst; a hydroxyl group-containing polysiloxane, organohydrogenpolysiloxane, or a polysiloxane containing alkenyl groups at side chain.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 20, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Haruka FUJII, Hiroyuki KATAYAMA
  • Patent number: 8329831
    Abstract: A multi part hydrosilylation curable silicone elastomer composition comprising (i) an organopolysiloxane comprising at least two unsaturated groups and having a viscosity of at least 1,000 mPas at 25° C.; (ii) inorganic filler having a hydrophilic surface; (iii) a filler treating agent comprising an organopolysiloxane comprising at least 2 hydroxy or otherwise hydrolysable groups, or a mixture thereof and having an average degree of polymerization of from 2 to 50; (iv) an organohydrogensiloxane having an average of greater than two silicon bonded hydrogen atoms per molecule having a viscosity of up to about 10 PaS at 25° C.; (v) a hydrosilylation catalyst; and/or a treated filler obtained by the reaction of (ii) and (iii) above characterized in that the filler treating agent (iii) and/or treated filler is packaged separately from organohydrogensiloxane (iv) prior to curing.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: December 11, 2012
    Assignee: Dow Corning Corporation
    Inventor: Lawrence Rapson