Material Contains A Group Viii Metal Atom Patents (Class 528/15)
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Patent number: 8512870Abstract: A transparent resin for an encapsulation material, including a polymetallosiloxane obtained from at least one metal compound represented by Chemical Formulae 1A to 1D copolymerized with a silicon compound including a compound represented by Chemical Formula 2:Type: GrantFiled: June 28, 2012Date of Patent: August 20, 2013Assignee: Cheil Industries, Inc.Inventors: June-Ho Shin, Sang-Ran Koh, Sung-Hwan Cha, Hyun-Jung Ahn, Young-Eun Choi
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Patent number: 8507630Abstract: The invention has an object to obtain an organic inorganic composite material having high activity and high selectivity, and suitable as a catalyst material having small elution of an active metal from a carrier, and further to obtain an organosilicon compound suitable for the preparation of the composite material. The composite material is an organic inorganic composite material comprising an organosilicon compound having at least two groups containing reactive silicon at a molecular end, bonded to one silicon atom constituting the organosilicon compound, and an inorganic oxide material, the organosilicon compound and the inorganic oxide material being bonded to each other through a plurality of groups containing reactive silicon of the organosilicon compound. The organosilicon compound is represented by the following general formula (1) or (2).Type: GrantFiled: March 5, 2009Date of Patent: August 13, 2013Assignees: National Institute of Advanced Industrial Science and Technology, N.E. Chemcat CorporationInventors: Shun-ya Onozawa, Norihisa Fukaya, Kaori Saitou, Toshiyasu Sakakura, Hiroyuki Yasuda, Yukio Takagi, Masae Ueda
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Patent number: 8501893Abstract: A synthetic method for preparing dual curable (e.g., thermal and light curable) silicone compositions is provided. The first step being a chemical modification of silanichydride bonds in cyclic siloxane monomer by the hydrosilylation reaction with acrylate-/methacrylate-containing allylic monomer. The second step being a ring-opening polymerization of the acrylate-/methacrylate-functionalized cyclic siloxane monomer with siloxane monomers using an oligosiloxane as a chain terminator.Type: GrantFiled: January 23, 2009Date of Patent: August 6, 2013Assignee: National Science and Technology Development AgencyInventors: Wanida Janvikul, Boonlom Thavornyutikarn, Paradorn Ngamdee
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Patent number: 8492477Abstract: A dispersion includes dispersed particles. The particles include a reaction product of a first polymer, a second polymer, and a chain terminator. The first and second polymers have at least two Si—H moieties and silicon bonded unsaturated moieties, respectively. The chain terminator has one Si—H moiety or one unsaturated hydrocarbon moiety. The first and second polymers and the chain terminator are reacted in the presence of a metal catalyst. The dispersion is formed by a method that includes the step of combining the first and second polymers, and the chain terminator. This method also reacts the first and second polymers and the chain terminator in the presence of the metal catalyst to form the dispersed particles.Type: GrantFiled: March 11, 2009Date of Patent: July 23, 2013Assignee: Dow Corning CorporationInventors: Severine Cauvin, Glenn V. Gordon, Donald T. Liles
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Patent number: 8492487Abstract: 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: GrantFiled: November 10, 2011Date of Patent: July 23, 2013Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hidenori Koshikawa, Mikio Shiono
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Patent number: 8487061Abstract: Provided is a process for making a saturated star hydrocarbon polymer. The process has the following steps: (A) hydrosilylating tetraethylene silicon with methyldichlorosilane in the presence of a hydrosilylating catalyst to form a chlorosilane dendrimer; (B) reacting the chlorosilane dendrimer with vinylmagnesium bromide in the presence of a lithium and/or organolithium initiator stepwise to build a higher generation chlorosilane dendrimer; (C) anionically polymerizing polybutadiene in the presence of a lithium and/or organolithium initiator to form living poly(butadienyl)lithium; (D) attaching the living poly(butadienyl)lithium to the higher generation dendrimer to form a star polybutadiene; and (E) hydrogenating the star polybutadiene to form the saturated star hydrocarbon polymer. There is also provided a saturated star hydrocarbon polymer made according to the above process and a polymer composition of a matrix ethylene polymer and the saturated star hydrocarbon polymer.Type: GrantFiled: May 17, 2011Date of Patent: July 16, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Andy H. Tsou, Nikos Hadjichristidis, Pamela J. Wright, Johannes M. Soulages
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Patent number: 8487020Abstract: 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: GrantFiled: June 28, 2010Date of Patent: July 16, 2013Assignee: Dow Corning CorporationInventors: Fabrizio Galeone, Axel Kretschmer, Leon Marteaux, Jean-Thierry Simonnet, Brett Lee Zimmerman
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Publication number: 20130172510Abstract: A process for the manufacture of polyorganosiloxanes having ionic groups and reactive functional groups includes (a) conversion of a low molecular weight aralkylene modified polysiloxane to a corresponding sulfonic acid functional material by treating the low molecular weight aralkylene modified polysiloxane with a sulfonating agent; (b) subjecting the reaction product obtained in step (a) to an equilibration reaction with an acid catalyzed ring opening polymerization-effective polyorganosiloxane; and (c) subjecting the reaction product obtained in step (b) to a hydrosilylation reaction with an unsaturated hydrocarbon containing at least one epoxy group, an unsaturated hydrocarbon containing at least two unsaturation moieties, an unsaturated hydrocarbon containing at least one sulfur heteroatom, an unsaturated hydrocarbon containing a monovalent organosilane group, an unsaturated hydrocarbon containing one hydroxyl containing group, an unsaturated hydrocarbon containing one or more of a halogen, carboxylate,Type: ApplicationFiled: January 4, 2012Publication date: July 4, 2013Applicant: Momentive Performance Materials Inc.Inventors: Anubhav Saxena, Alok Sarkar
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Publication number: 20130165616Abstract: Disclosed is a perylenetetracarboxylic acid diimide organic semiconductive material represented by the following formula (I), which belongs to the field of photoelectric material. In formula (I), n is an integer of 1-100, R1, R2 or R3 is hydrogen, C1-C20 alkyl, C1-C20 alkoxyl, phenyl or alkoxyphenyl, R4 or R5 is C1-C20 alkyl, R6 or R7 is hydrogen, C1-C20 alkyl, C1-C20 alkoxyl or phenyl. The preparation method of said perylenetetracarboxylic acid diimide organic semiconductive material and the use thereof are also disclosed.Type: ApplicationFiled: September 10, 2010Publication date: June 27, 2013Applicant: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.Inventors: Mingjie Zhou, Jie Huang, Rong Guan
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Patent number: 8470937Abstract: 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: GrantFiled: May 26, 2011Date of Patent: June 25, 2013Assignee: Adeka CorporationInventors: Ken-ichiro Hiwatari, Isamu Yumoto
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Patent number: 8461284Abstract: Compositions and methods for controlled polymerization and/or oligomerization of hydrosilanes compounds including those of the general formulae SinH2n and SinH2n+2 as well as alkyl- and arylsilanes, to produce soluble silicon polymers as a precursor to silicon films having low carbon content.Type: GrantFiled: November 17, 2011Date of Patent: June 11, 2013Assignee: Kovio, Inc.Inventors: Dmitry Karshtedt, Joerg Rockenberger, Fabio Zürcher, Brent Ridley, Erik Scher
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Patent number: 8461283Abstract: The present invention relates to an organopolysiloxane composition that can be vulcanized at room temperature into an elastomer that is crosslinked by polycondensation and that does not contain alkyltin-based catalysts and also to novel organopolysiloxane polycondensation catalysts.Type: GrantFiled: December 18, 2008Date of Patent: June 11, 2013Assignee: Bluestar Silicones France SASInventors: Christian Maliverney, Laurent Saint-Jalmes
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Patent number: 8450443Abstract: A process to physically deter fouling from a substrate in an aquatic fouling environment, which process comprises forming on the substrate, before exposure to the said environment, a coating composition comprising (i) a curable polyorganosiloxane polyoxyalkylene block copolymer having at least two reactive groups X situated on the copolymer chain and (ii) an organosilicon crosslinking agent and/or a catalyst.Type: GrantFiled: April 28, 2008Date of Patent: May 28, 2013Assignee: Akzo Nobel Coatings International B.V.Inventors: David Neil Williams, David Anthony Stark, Adrian James Lee, Cait Marie Davies
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Patent number: 8440311Abstract: 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: GrantFiled: October 2, 2008Date of Patent: May 14, 2013Assignee: Bluestar Silicones France SASInventors: Laurent Dumont, Alain Pouchelon
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Patent number: 8440312Abstract: 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: GrantFiled: December 1, 2009Date of Patent: May 14, 2013Assignee: Dow Corning CorporationInventor: G. M. Fazley Elahee
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Patent number: 8426506Abstract: Addition-crosslinkable silicone compositions having high adhesion, rapid curing, and reduced odor and extractables contain a silylated citric acid.Type: GrantFiled: February 16, 2011Date of Patent: April 23, 2013Assignee: Wacker Chemie AGInventors: Johann Mueller, Markus Merget, Klaus Schnitzer
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Patent number: 8425711Abstract: 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: GrantFiled: September 1, 2009Date of Patent: April 23, 2013Assignee: Asahi Glass Company, LimitedInventors: Toshihiko Higuchi, Satoru Takaki
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Publication number: 20130096252Abstract: Embodiments of the invention provide for methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule. The method comprises providing a polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polyoxyalkylene polymers, reacting the hydrosilylated polyoxyalkylene polymers with at least one isocyanate in the presence of a first tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.Type: ApplicationFiled: June 29, 2011Publication date: April 18, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Kamesh R. Vyakaranam, Ling Zhang, William A. Koonce, Juan Carlos Medina, Ganesh Kailasam, Rajat Duggal, Nathan Wilmot
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Patent number: 8420712Abstract: 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: GrantFiled: September 29, 2011Date of Patent: April 16, 2013Assignee: GC CorporationInventors: Hiroshi Kamohara, Shouichi Fukushima
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Publication number: 20130082300Abstract: There are provided an optical semiconductor sealing curable composition that provides a cured material having excellent transparency, and an optical semiconductor apparatus having an optical semiconductor device sealed using the cured material obtained by curing the optical semiconductor sealing curable composition. There is provided an optical semiconductor sealing curable composition containing: (A) a linear polyfluoro compound; (B) cyclic organosiloxane having an SiH group and a fluorine-containing organic group; (C) a platinum group metal catalyst; (D) cyclic organosiloxane having an SiH group, fluorine-containing organic group, and an epoxy group; and (E) cyclic organosiloxane having an SiH group, a fluorine-containing organic group, and a cyclic carboxylic acid anhydride residue.Type: ApplicationFiled: August 20, 2012Publication date: April 4, 2013Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Hidenori KOSHIKAWA, Mikio SHIONO
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Patent number: 8408276Abstract: 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: GrantFiled: December 15, 2011Date of Patent: April 2, 2013Assignee: Nicca Chemical Co., Ltd.Inventor: Takahiro Kondou
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Patent number: 8389650Abstract: 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: GrantFiled: September 22, 2011Date of Patent: March 5, 2013Assignee: Momentive Performance Materials Japan LLCInventors: Masanori Takanashi, Hideki Kobayashi
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Patent number: 8378049Abstract: The present invention relates to new high-functionality, highly branched or hyperbranched polylysines, to processes for preparing them, and to their use.Type: GrantFiled: May 6, 2010Date of Patent: February 19, 2013Assignee: BASF AktiengesellschaftInventors: Bernd Bruchmann, Harm-Anton Klok, Markus Thomas Scholl
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Patent number: 8378050Abstract: Methods are disclosed for making crosslinked polysilanes and polygermanes, preferably having either hydrogen or halogen substituent groups. These crosslinked polymers are prepared by catalytic polymerization such as the dehalogenative coupling or dehydrocoupling. The crosslinked polymers having no more than 10% of the chain atoms involved in crosslinking. Also disclosed are compositions containing these crosslinked polymers in a solvent to enable the composition to be deposited on a substrate using a liquid deposition technique.Type: GrantFiled: April 12, 2011Date of Patent: February 19, 2013Assignee: Kovio, Inc.Inventor: Vladimir K. Dioumaev
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Patent number: 8373286Abstract: A curable organopolysiloxane composition and an optical semiconductor element sealant, each comprising (A) a diorganopolysiloxane that has at least 2 alkenyl groups wherein at least 70 mole % of all the siloxane units are methylphenylsiloxane units and the total content of 1,3,5-trimethyl-1,3,5-triphenylcyclotrisiloxane and 1,3,5,7-tetramethyl-1,3,5,7-tetraphenylcyclotetrasiloxane is no more than 5 weight %, (B) an organopolysiloxane that has at least 2 silicon-bonded hydrogen atoms wherein at least 15 mole % of the silicon-bonded organic groups are phenyl groups, and (C) a hydrosilylation reaction catalyst. An optical semiconductor device in which an optical semiconductor element within a housing is sealed with the cured product from the aforementioned composition.Type: GrantFiled: September 4, 2009Date of Patent: February 12, 2013Assignee: Dow Corning Toray Co., Ltd.Inventors: Makoto Yoshitake, Hiroji Enami, Tomoko Kato, Masayoshi Terada
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Patent number: 8362141Abstract: 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: GrantFiled: April 4, 2011Date of Patent: January 29, 2013Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Nobu Kato, Noriyuki Meguriya, Toshio Yamazaki
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Patent number: 8344170Abstract: A poly(cyclosiloxane) network comprises the hydrosilation reaction product of a cyclosiloxane of the formula (I) wherein R and R2 are the same or different for each siloxane moiety of hydrogen, an alkyl group, an aryl group, and a cycloalkyl group, and wherein n is an integer from 3 to 8, wherein the cyclosiloxanes are joined by moieties selected from the group consisting of oxygen atoms, linear silanols, branched silanols, halosilanes, alkoxysilanes, vinyl silanes, allyl silanes, vinyl siloxanes, and allyl siloxanes, wherein the Si—O bonds of the cyclosiloxanes are substantially unrearranged compared to the cyclosiloxane precursors of the network.Type: GrantFiled: August 15, 2003Date of Patent: January 1, 2013Assignee: The University of AkronInventors: Joseph P. Kennedy, Pious Kurian
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Patent number: 8344075Abstract: 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: GrantFiled: July 14, 2011Date of Patent: January 1, 2013Assignee: Cheil Industries, Inc.Inventors: Woo-Han Kim, June-Ho Shin, Sang-Ran Koh, Sung-Hwan Cha, Hyun-Jung Ahn
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Patent number: 8334355Abstract: Silicone-polyether block copolymers prepared by organomodification of branched polysiloxanes having terminal and/or lateral SiH functions or linear polysiloxanes having lateral and/or terminal SiH functions by means of polyethers or polyether mixtures, characterized in that the polyethers used have a polydispersity Mw/Mn in the range from 1.0 to 1.5 and/or ratios Mn/MWIN and Mw/MWIN in the range from 0.7 to 1.3, their preparation and use and also polymer articles produced therewith.Type: GrantFiled: October 26, 2009Date of Patent: December 18, 2012Assignee: Evonik Goldschmidt GmbHInventors: Frauke Henning, Wilfried Knott, Frank Schubert, Roland Hubel, Christian Eilbracht
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Patent number: 8334054Abstract: A heat conductive cured product which can be handled even in a single layer or thin film form, can be readily attached to a heat-generating component or heat-dissipating member, and exhibits an appropriate tack and heat conductivity in a thin film form is provided as well as a method for preparing the same. A heat conductive cured product is prepared by applying a heat conductive composition as a thin film to a substrate which has been treated to have a silicone pressure-sensitive adhesive releasable surface, and curing the composition, the composition comprising as essential components, (a) an organopolysiloxane having alkenyl radicals, (b) a heat conductive filler, the filler containing at least 30 vol % of aluminum powder based on its total volume, (c) an organohydrogenpolysiloxane, (d) a platinum group metal catalyst, (e) a reaction regulator, and (f) a silicone resin.Type: GrantFiled: February 20, 2009Date of Patent: December 18, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Akihiro Endo, Masaya Asaine, Takahiro Maruyama
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Patent number: 8329831Abstract: 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: GrantFiled: June 26, 2007Date of Patent: December 11, 2012Assignee: Dow Corning CorporationInventor: Lawrence Rapson
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Patent number: 8329307Abstract: This invention relates to silicon compositions particularly useful for the production of anti-fouling varnishes that can be applied to flexible or bulk supports. In particular, embodiments of the invention are directed to cross-linkable silicone composition that is cross-linkable by polyaddition and includes at least two inter-reactive polyorganosiloxane (POS) species (A) and (B) in the presence of a metal catalyst (C) in order to allow cross-linking by polyaddition; and optionally at least one particulate component (D); at least one cross-linking inhibitor (E); optionally at least one solvent (F), optionally at least one adhesion promoter (G); and optionally at least one functional additive (H) for imparting specific properties.Type: GrantFiled: December 7, 2006Date of Patent: December 11, 2012Inventors: Alain Pouchelon, Maryline Quemin
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Publication number: 20120309921Abstract: An objective of the present invention is to provide a curable silicone composition of the present invention exhibiting superior adhesive properties with respect to a poor-adhesive resin such as PPS, even if the composition is cured at a relatively low temperature for a short period. The aforementioned objective of the present invention is achieved by a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups in a molecule, (B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule, (C) a hydrosilylation-reaction catalyst, and (D) an acid anhydride having an alkoxy group bonding to a silicon atom or an alkoxyalkoxy group bonding to a silicon atom.Type: ApplicationFiled: December 20, 2010Publication date: December 6, 2012Inventors: Yoshinori Taniguchi, Toyohiko Fujisawa, Yasushi Sugiura
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Patent number: 8318854Abstract: The present invention relates to a composition for a thermosetting silicone resin, including: (1) an organopolysiloxane having a silanol group at an end thereof; (2) an alkenyl group-containing silicon compound; (3) an epoxy group-containing silicon compound; (4) an organohydrogensiloxane; (5) a condensation catalyst; (6) a hydrosilylation catalyst; and (7) a silica particle, in which the (7) silica particle has a 50% volume cumulative diameter of from 2 to 50 ?m, a content of particles having a particle size of 1 ?m or less of 15% by number or less and a content of particles having a particle size of 60 ?m or more of 15% by number or less.Type: GrantFiled: June 2, 2011Date of Patent: November 27, 2012Assignee: Nitto Denko CorporationInventors: Hiroyuki Katayama, Takashi Kondo, Hirokazu Matsuda, Ryuichi Kimura
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Patent number: 8314200Abstract: Pt-catalyzed, addition-crosslinking silicone compositions which are self-adhesive at room temperature, develop adhesion rapidly on unpretreated substrates, and contain a functional alkoxy ?-silane as an adhesion promoter.Type: GrantFiled: March 31, 2010Date of Patent: November 20, 2012Assignee: Wacker Chemie AGInventors: Markus Jandke, Werner Brennenstuhl
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Patent number: 8304084Abstract: Provided is a liquid silicone rubber coating composition with a viscosity at 25° C. of 10,000 to 100,000 mPa·s, comprising: (A) (A-1) a substantially straight chain organopolysiloxane containing alkenyl groups only at both molecular chain terminals, and (A-2) a substantially straight chain organopolysiloxane containing an average of at least two alkenyl groups, only at non-terminal molecular chain positions, within each molecule, (B) an organohydrogenpolysiloxane containing an average of at least two hydrogen atoms bonded to silicon atoms within each molecule, (C) an addition reaction catalyst, and (D) an adhesion improver, as well as an air bag with a rubber coating layer comprising a cured product of such a composition. Also provided is an air bag with a rubber coating layer comprising a cured product of such a composition. The liquid silicone rubber coating composition can be used without dissolution in an organic solvent, and displays excellent adhesion to fiber and excellent rubber strength.Type: GrantFiled: May 24, 2005Date of Patent: November 6, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hidenori Mizushima, Masayuki Ikeno
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Patent number: 8299196Abstract: An adhesive composition is provided comprising (A) a fluorinated amide compound containing at least two vinyl groups and having a polyfluoro structure, (B) a fluorinated organosilicon compound containing a fluorinated organic group, at least two SiH groups, and an alkyl, aryl or aralkyl group, and (C) a platinum catalyst, and (D) an organosiloxane containing a SiH group and an epoxy and/or trialkoxysilyl group. The composition is cured on brief heating into a product which achieves adhesion to various substrates and has solvent resistance, chemical resistance, heat resistance, low-temperature properties, low moisture permeability, electric insulation, and acid resistance.Type: GrantFiled: April 13, 2011Date of Patent: October 30, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Mikio Shiono, Noriyuki Koike
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Patent number: 8293849Abstract: A silicone composition for sealing a light emitting element includes: (A) a vinyl group-containing organopolysiloxane having a three-dimensional network structure represented by an average unit formula: (SiO4/2)a(ViR2SiO1/2)b(R3SiO1/2)c (where Vi represents a vinyl group, R's are identical or different substituted or unsubstituted monovalent hydrocarbon groups other than alkenyl groups, and a, b, and c are positive numbers satisfying that a/(a+b+c) is 0.2 to 0.6 and b/(a+b+c) is 0.001 to 0.2); (B) an organohydrogenpolysiloxane which has at least two hydrogen atoms, each hydrogen atom being bonded to a silicon atom per molecule, the organohydrogenpolysiloxane being contained in such an amount that an amount of a hydrogen atom bonded to a silicon atom is 0.3 to 3.0 mol per 1 mol of a vinyl group bonded to a silicon atom in the component (A); and (C) a hydrosilylation catalyst (catalytic amount), wherein a coefficient of linear expansion of the composition after curing is 10×10?6 to 290×10?6/° C.Type: GrantFiled: July 22, 2005Date of Patent: October 23, 2012Assignee: Momentive Performance Materials Japan LLCInventors: Kikuo Mochizuki, Nobuo Hirai
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Patent number: 8288498Abstract: A sugar-alcohol-modified organopolysiloxane compound represented by formula (1) and processes for producing the compound. (In the formula, R1 represents a hydrocarbon group having 1-8 carbon atoms; X is a group represented by formula (2); Y represents —R4O(AO)nR5 (wherein AO is an oxyalkylene group having 2-4 carbon atoms, R4 is a divalent hydrocarbon group having 3-5 carbon atoms, R5 is any of a hydrogen atom, a hydrocarbon group having 1-24 carbon atoms, and an acyl group having 2-24 carbon atoms, and n is 1-100); R2 is any of R1, X, and Y; and a is 0-700, b is 0-100, and c is 0-50; provided that when b is 0, at least one of the R2s is X.) (In the formula, R3 is a divalent hydrocarbon group having 3-5 carbon atoms; and d is 1-2.Type: GrantFiled: March 26, 2008Date of Patent: October 16, 2012Assignee: NOF CorporationInventors: Yoshihiro Hayashi, Satoshi Abe
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Publication number: 20120256325Abstract: 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: ApplicationFiled: April 6, 2012Publication date: October 11, 2012Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Tsutomu KASHIWAGI, Yoshihira Hamamoto
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Patent number: 8278367Abstract: A subject-matter of the invention is an impression material with at least one compound with at least two alkenyl groups as component (a), at least one compound with at least one chelating group as component (b), at least one organohydropolysiloxane as component (c), at least one hydrosilylation catalyst as component (d) and at least one compound with a chelatable metal atom as component (e), the chelating group of the component (b) exhibiting no reactive groups which can react with the component (c) and/or the component (d). The invention achieves a long storage stability.Type: GrantFiled: January 16, 2008Date of Patent: October 2, 2012Assignee: Ernst Muehlbauer GmbH & Co. KGInventors: Henrik Boettcher, Stephan Neffgen
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Patent number: 8278408Abstract: Disclosed is a resin composition having an excellent balance between shortness of curing time and longness of pot life. The resin composition contains (A) an organopolysiloxane having an alkenyl group, (B) an organopolysiloxane having a silicon atom-bonded hydrogen atom, (C) a hydrosilylation catalyst, (D) a silane coupling agent and (E) an unsaturated dicarboxylic acid ester. The component (B) contains (B-1) an organopolysiloxane having a molecular weight of not less than 5,000 but not more than 50,000 and (B-2) an organopolysiloxane having a molecular weight of not less than 100 but not more than 5,000, and the ratio of (B-2) to (B-1) is preferably not less than 0.01% by mass but not more than 20% by mass.Type: GrantFiled: July 16, 2009Date of Patent: October 2, 2012Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Yoshitsugu Goto, Shigeo Hiyama, Takuya Okada, Jun Watanabe
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Patent number: 8273840Abstract: Gel compositions are disclosed containing a silicone polyether elastomer from the reaction of an organohydrogensiloxane having at least two SiH containing cyclosiloxane rings in its molecule, a compound or mixture of compounds having at least two aliphatic unsaturated groups in its molecule, and a hydrosilylation catalyst. The silicone polyether elastomer reaction product may itself be a gelled composition, or optionally may be contained in a carrier fluid to form a gel. The gel compositions may further contain a personal or healthcare active.Type: GrantFiled: March 20, 2007Date of Patent: September 25, 2012Assignee: Dow Corning CorporationInventor: Shaow Lin
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Patent number: 8273842Abstract: An object of the invention is to provide a curing agent and a curable composition capable of forming a cured product, which is applicable for optical material and which has excellent heat and light transparency and crack resistance, and a cured product obtained by curing the same. Moreover, an object of the invention is to provide a method for producing with use of the components of the curing agent a cyclic polyorganosiloxane having a specific structure, in a selective manner and in high yield.Type: GrantFiled: November 7, 2008Date of Patent: September 25, 2012Assignee: Kaneka CorporationInventors: Yoshikatsu Ichiryu, Masayuki Fujita
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Patent number: 8257797Abstract: 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: GrantFiled: November 2, 2004Date of Patent: September 4, 2012Assignee: Bluestar Silicones FranceInventors: Laurent Dumont, Alain Pouchelon
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Patent number: 8247502Abstract: Provided is an addition reaction-curable silicone pressure-sensitive adhesive composition, including: (A) a specific diorganopolysiloxane consisting of (A1) a linear diorganopolysiloxane having two or more alkenyl groups, and (A2) a linear diorganopolysiloxane having SiOH groups at the terminals and containing no alkenyl groups, (B) a specific organopolysiloxane containing M units, Q units and SiOH group-containing siloxane units, (C) an organohydrogenpolysiloxane containing three or more SiH groups, (D) an addition reaction retarder, (E) a platinum group metal-based catalyst, and (F) a specific organopolysiloxane containing T units and D units. A cured product layer formed from a cured product of this composition can be peeled from a release film with minimal peeling force, and exhibits excellent adhesion to silicone rubbers.Type: GrantFiled: June 17, 2010Date of Patent: August 21, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Shunji Aoki
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Patent number: 8247515Abstract: The present invention generally relates to amphiphilic grafts and co-networks made from at least one hydrophilic polymer and at least one hydrophobic polymer, and to processes for preparing such amphiphilic grafts and co-networks. In another embodiment, the present invention relates to amphiphilic co-networks formed from the combination of at least one polysiloxane and at least one polyacrylamide. In yet another embodiment, the present invention relates to amphiphilic co-networks formed from the combination of at least one polysiloxane, at least one polyacrylamide and at least one crosslinking agent.Type: GrantFiled: August 3, 2007Date of Patent: August 21, 2012Assignee: The University of AkronInventors: Joseph P. Kennedy, Gabor Erdodi
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Patent number: 8232346Abstract: The invention relates to an aqueous silicone emulsion comprising polyorganosiloxanes (POS) with Si-vinyl units and POS with SiH units, cross-linkable by polyaddition in the presence of a platinum catalyst. The emulsion also contains an agent (e.g., buffer) for setting and maintaining pH between 5 and 9 in an amount sufficient to eliminate or significantly reduce foam or gel formation; an emulsifying agent; optionally a polyaddition inhibitor and other additives such as a filler, biocide, antifoam, anti-freeze, coloring agent, synthetic latex. The emulsions can comprise three different families of dispersed silicone phase droplets (e.g., polyorganosiloxane (A), polyorganosiloxane (B) and catalyst). Such emulsions can be used in the preparation of anti-adherent coating on fibrous or non fibrous supports. The invention also concerns a method for preparing said emulsions and methods for coating supports, for example paper, using said emulsion.Type: GrantFiled: January 4, 2005Date of Patent: July 31, 2012Assignee: Bluestar Silicones France SASInventors: Sean Duffy, André Lievre, Christian Mirou
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Patent number: 8227520Abstract: A silicone rubber sponge emulsion composition comprising (A) (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule, or a paste-like mixture of (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule and (d) a reinforcing filler, (b) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, and (c) a platinum catalyst, (B) an aqueous solution of a water-soluble polymer, and (C) an emulsifying agent; its production; and production of silicone rubber sponge, wherein silicone rubber sponge is obtained by curing the composition into a molding and heating the molding.Type: GrantFiled: March 5, 2004Date of Patent: July 24, 2012Assignee: Dow Corning Toray Company, Ltd.Inventors: Shinya Shirasaki, Tadanori Fukamachi, Mitsuo Hamada
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Patent number: 8222364Abstract: A composition includes a siloxane of the formula: (RMe2SiO1/2)a(MeRSiO2/2)b(RSiO3/2)c(SiO4/2)d wherein a is at least 2, b is from 3 to 20, c is from 0 to 10, d is from 0 to 10, and each R is independently of the formula —CR?2—CR?2—Y—Z or CR?2—CR?2—Z, wherein each R? is independently a hydrogen atom or a C1 to C10 hydrocarbyl free of aliphatic unsaturation so long as at least one R? is a hydrogen atom, Y is a divalent organic group, and Z is a polycyclic group containing at least one aromatic ring. A method of making the siloxane includes charging (HMe2SiO1/2)a(MeHSiO2/2)b(HSiO3/2)c(SiO4/2)d, a platinum catalyst, and an alkene of the formula CR?2?CR?—Y—Z or CR?2?CR?—Z into a reactor to form the siloxane. The siloxane is useful as a component in holographic storage media for photopolymer-based holographic data storage applications. The siloxane exhibits excellent compatibility when mixed with a polymerizable component before the polymerizable component is cured.Type: GrantFiled: April 10, 2007Date of Patent: July 17, 2012Assignees: Dow Corning Corporation, DCE Aprilis, Inc.Inventors: Kai Su, Duane R. Bujalski, Peter Y. Lo, Eric Kolb