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1.发明授权公开(公告)号：US12065567B2
公开(公告)日：2024-08-20
申请号：US17118864
申请日：2020-12-11
发明人： Kikuo Mochizuki
CPC分类号： C08L83/04 , C08G77/12 , C08G77/18 , C08G77/20 , F21V3/062 , H01L23/296 , B29D11/00009 , C08L2205/025 , C08L2205/03
摘要： To provide a method of manufacturing a silicone cured product and a silicone cured product which allow generation of a volatile component to be reduced significantly even being exposed to high temperatures of room temperature or more for a long time. A method of manufacturing a silicone cured product includes: curing an additional polyorganosiloxane composition by hydrosilylation reaction under closed atmosphere at a temperature of 40° C. or more and 200° C. or less to obtain a primary cured product; and heating the primary cured product under open atmosphere or reduced pressure at a temperature of 60° C. or more and 160° C. or less, and a silicone cured product in which when heated at 150° C. for 16 hours, a total generation amount of an alcohol having 1 to 3 carbon atoms and an oxide thereof, and an alkyl group-containing silane compound having 1 to 3 carbon atoms is 10 ppm or less.
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公开(公告)号：US10301473B2
公开(公告)日：2019-05-28
申请号：US15623958
申请日：2017-06-15
发明人： Kikuo Mochizuki
IPC分类号： C08G77/20 , C08L83/04 , F21V3/06 , C08K5/521 , C08K5/524 , G02B1/04 , C08G77/06 , F21V25/12 , B29C43/00 , B29C45/00 , F21Y115/10 , B29K83/00 , B29L11/00
摘要： This flame-retardant polyorganosiloxane includes (A) a straight-chain polyorganosiloxane having two or more alkenyl groups in one molecule and whose viscosity (25° C.) is 10,000 to 1,000,000 mPa·s; (B) 30 to 80 mass % of a resinoid polyorganosiloxane which includes Q unit and has 1.5 or more alkenyl groups on average, and in which a molar ratio of alkoxy groups to alkyl groups is 0.030 or less; (C) an amount of a polyorganohydrogensiloxane, whose average degree of polymerization is 10 or more, and in which a Si—H content is 5.0 mmol/g or more, in which Si—H/(a total of alkenyl groups) is 1.0 to 3.0 mol; and (D) a hydrosilylation reaction catalyst. A flame-retardant polyorganosiloxane composition capable of reducing an amount of a platinum-based metal compound is provided.
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公开(公告)号：US09564562B2
公开(公告)日：2017-02-07
申请号：US14730810
申请日：2015-06-04
发明人： Kikuo Mochizuki , Akira Takagi
CPC分类号： H01L33/56 , C08G77/12 , C08G77/20 , C08G77/80 , C08K5/56 , C08L83/00 , C08L83/04 , C08L83/10
摘要： The silicone composition for sealing a semiconductor, comprises: (A) 100 parts of a polyorganosiloxane having one or more alkenyl groups, obtained by reacting (a1) 60 to 99 parts of an organosiloxane containing at least a trifunctional siloxane unit not taking part in a hydrosilylation reaction, with (a2) 40 to 1 parts of an organosiloxane containing a bifunctional siloxane unit having an alkenyl group and/or a monofunctional siloxane unit having an alkenyl group; (B) an amount of a polyorganohydrogensiloxane having two or more hydrogen atoms having a viscosity at 25° C. of 1 to 1000 mPa·s so that an amount of the hydrogen atoms is 0.5 to 3.0 mol per mol of the alkenyl groups; and (C) a platinum-based catalysts, wherein a decrease in storage modulus of a cured product thereof from 25° C. to 50° C. is 40% or more.Specifically the polyorganosiloxane (A) is prepared by block or graft polymerization and equilibration reaction of three specific, different, organosiloxanes including a branched siloxane, a linear siloxane and a cyclic siloxane.
摘要翻译： 具体地说，聚有机硅氧烷（A）通过包括支链硅氧烷，直链硅氧烷和环状硅氧烷在内的三种特定不同的有机硅氧烷的嵌段或接枝聚合和平衡反应来制备。
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公开(公告)号：US10752774B2
公开(公告)日：2020-08-25
申请号：US15624087
申请日：2017-06-15
IPC分类号： C08L83/04 , F21V3/06 , C08K5/521 , C08K5/524 , C08G77/20 , G02B1/04 , C08G77/06 , F21V25/12 , B29C43/00 , B29C45/00 , F21Y115/10 , B29K83/00 , B29L11/00
摘要： A polyorganosiloxane composition for molding includes: (A) a straight-chain polyorganosiloxane having two or more alkenyl groups and having a viscosity (25° C.) of 10,000 to 500,000 mPa·s; (B) 30 to 80 mass % of a resinoid polyorganosiloxane including M, D, and Q units, at a molar ratio of a:b:c, on average (0.3≤a≤0.6, 0≤b≤0.1, 0.4≤c≤0.7, and a+b+c=1), and having two or more alkenyl groups; (C) an amount of a polyorganohydrogensiloxane having Si-bonded hydrogen atoms, an average degree of polymerization of 10 or more, a content of the Si-bonded hydrogen atoms of 5.0 mmol/g or more and 11.0 mmol/g or less, and a mass decrease rate up to 140° C. by TGA of 2.0 mass % or less so that an amount of the (Si-bonded hydrogen atoms/alkenyl groups) is 1.0 to 3.0 mol; and (D) a hydrosilylation reaction catalyst. A cured product excellent in mold release property is obtained and contamination of a metal mold is prevented.
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