Abstract:
PROBLEM TO BE SOLVED: To provide a silicon-containing curable composition which is hardly discolored due to light deterioration or thermal deterioration and is made hard, to which dust is hardly stuck and which is useful as electric/electronic materials, particularly as a sealing agent for a light emitting element. SOLUTION: The silicon-containing curable composition contains: as a component (A), a prepolymer which is obtained by subjecting a cyclic siloxane compound having two or more Si-H groups in one molecule thereof and a trivinylcyclohexane compound to a hydrosilylation reaction by such a ratio that two or more Si-H groups remains in one molecule of the prepolymer and which has two or more Si-H groups in one molecule thereof; as a component (B), a cyclic siloxane compound having two or more carbon-carbon double bonds, each of which has reactivity with the Si-H group, in one molecule thereof; and as a component (C), a hydrosilylation catalyst. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device can attain high heat resistance and high voltage resistance and improve tight adhesiveness between a cover part for a semiconductor element and a support. SOLUTION: In a semiconductor device, a cover part 15 covering a GTO thyristor element 1 contains a silicon-containing polymer, including a bridged structure using siloxane (Si-O-Si binder) in one or more parts and is formed from a first silicon-containing curable composition containing a patina catalyst, that is a hardening reactive catalyst, and an iron group containing rust. Furthermore, the cover part 15 and a cover part 16, that covers an anode terminal 5 and a gate terminal 8 on a support 11, are formed from a second silicon-containing curable composition, in which alumina fine particles having a grain size of 20 μm are blended as insulated ceramics in the first silicon-containing curable composition at a volume filling factor of 50%. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a curable composition in which an obtained cured article is excellent in heat-resistance and flexibility. SOLUTION: The curable composition comprises a silicon-containing compound represented by general formula (0), and 0.01-20 pts.mass of an epoxy-curable compound based on 100 pts.mass of the compound. In general formula (0), Z is a group represented by any one of the formulae (2)-(6). COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a curable composition which has excellent heat resistance, toughness and adhesion.SOLUTION: The curable composition contains: (A) a compound having at least two vinyl groups in the molecule; (B) a compound having at least two Si-H groups in the molecule; and (C) a hydrosilylating catalyst, and the compound in the (A) component and/or the compound in the (B) component is the compound having groups expressed by general formula (1) (in the formula, Xdenotes a residue obtained by removing two hydroxyl groups from a 2 to 25C dihydroxyl compound).
Abstract:
PROBLEM TO BE SOLVED: To provide a production method by which a divinyl siloxane compound such as a divinyltrisiloxane is obtained in a high yield without using dimethyl vinyl chlorosilane.SOLUTION: A method of producing a divinyl siloxane compound represented by general formula (3) includes reacting of a silane diol compound with a divinyl siloxane compound by using an alkali metal catalyst. In the general formula(3), Ris an aryl group having 6 to 10 carbon atoms, Ris an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a cycloalkyl group or a cycloalkenyl group having 5 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, or an aralkyl group having 7 to 10 carbon atoms, and Rand Rare each independently an alkyl group having 1 to 4 carbon atoms.
Abstract:
PROBLEM TO BE SOLVED: To provide an optical fiber in which excellent heat resistance and productivity are provided and a microbend loss is suppressed even in a high temperature environment.SOLUTION: An optical fiber 1 has a covering layer 5 formed by crosslinking an energy curable resin composition containing a silicon compound on the outer periphery of a glass fiber 4 made of a core part 2 and a cladding part 3. The silicon compound contains a compound (A) represented by a specific general formula and a compound (B) represented by another specific general formula, and the content of the compound (B) relative to 100 parts by mass of the total amount of the compound (A) and compound (B) is in a range of 10-30 parts by mass.
Abstract:
PROBLEM TO BE SOLVED: To provide a curable composition capable of providing a cured film which is free from surface tackiness, is excellent in heat resistance, and hardly causes crack even when used at high temperature for a long time.SOLUTION: The silicon-containing curable resin composition includes: an epoxysiloxane compound having at least two epoxy-containing groups and a group represented by general formula (1) in one molecule as a component (A); an epoxy siloxane compound having 1-10 silicon atoms and at least two epoxy-containing group in one molecule as a component (B); and an epoxy curable compound as a component (C). In general formula (1), R-R, which may be the same or different, each represent 1-4C alkyl or 6-10C aryl, and a represents an integer of 20-10,000.
Abstract:
PROBLEM TO BE SOLVED: To provide a silicon-containing curable composition, which is excellent in stability, transparency and curability, and can be used for forming a cured product excellent in various properties such as crack resistance, heat resistance, solvent resistance and alkali resistance. SOLUTION: The silicon-containing curable composition includes at least one silicon-containing polymer among component (A), component (B) and component (C). The component (A) is a silicon-containing polymer having one or more reactive groups selected from the group consisting of Si-CH=CH 2 , Si-R 1 -CH=CH 2 and Si-R 1 -OCOC(R 2 )=CH 2 and having at least one bridging structure by an Si-O-Si bond. The component (B) is a silicon-containing polymer having Si-H group and having at least one bridging structure by an Si-O-Si bond. The component (C) is a silicon-containing polymer having one or more above reactive groups and further an Si-H group and having at least one bridging structure by an Si-O-Si bond. COPYRIGHT: (C)2007,JPO&INPIT