会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Process for producing branched organopolysiloxane
    • 生产支链有机聚硅氧烷的方法
    • US5391674A
    • 1995-02-21
    • US197872
    • 1994-02-17
    • Hiroyasu HaraMasayuki IkenoAkihito Tsukuno
    • Hiroyasu HaraMasayuki IkenoAkihito Tsukuno
    • C08G77/06C08G77/10C08G77/38
    • C08G77/10C08G77/06
    • A process for producing a branched organopolysiloxane, comprising the steps of subjecting mixture of (A) a trialkoxysilane having the general formula (1):R.sup.1 Si(OR.sup.2).sub.3 (1)wherein R.sup.1 is a hydrocarbon group, and R.sup.2 are each a hydrocarbon group, and (B) an organosiloxane oligomer obtained by hydrolysis-condensation of a silane compound having the general formula (2):R.sup.3.sub.a SiCl.sub.4-a (2)wherein R.sup.3 are each a hydrocarbon group and a is 2 or 3, to equilibration reaction in the presence of an alkali catalyst, and adding water, subsequently to or concurrently with the equilibration reaction, to the reaction mixture, thereby hydrolyzing the Si--OR.sup.2 groups contained in the organopolysiloxane resulting from the hydrolysis-condensation. A branched organopolysiloxane stable in molecular composition and properties such as viscosity, can be produced.
    • 一种制备支链有机聚硅氧烷的方法,包括以下步骤:(A)具有通式(1)的三烷氧基硅烷:其中R 1为烃基的R 1 Si(OR 2)3(1)和R 2各自为烃基 ,(B)通过具有通式(2)的硅烷化合物的水解缩合得到的有机硅氧烷低聚物:R3aSiCl4-a(2)其中R3各自为烃基,a为2或3,以平衡反应 存在碱催化剂,然后在平衡反应中或同时向反应混合物中加入水,由此水解由水解缩合产生的有机聚硅氧烷中所含的Si-OR 2基团。 可以制备分子组成稳定的分支有机聚硅氧烷和粘度等性质。
    • 7. 发明授权
    • Thixotropic fluorosilicone gel composition
    • 触变氟硅胶组合物
    • US5532294A
    • 1996-07-02
    • US261961
    • 1994-06-17
    • Masayuki IkenoHiroyasu Hara
    • Masayuki IkenoHiroyasu Hara
    • C08K9/06C08L83/08
    • C08K9/06C08L83/08
    • A silicone gel composition comprising (A) a linear organopolysiloxane having a backbone consisting only of trifluoropropyl-substituted siloxane units and terminated with alkenyl group, (B) an organohydrogenpolysiloxane, (C) a platinum catalyst, and (D) a finely powdered silica whose surfaces have been rendered hydrophobic by treatment with a silicon compound having only methyl groups as substituent groups, such as hexamethyldisilazane, trimethylchlorosilane, dimethyldichlorosilane, methyltrichlorosilane, trimethylalkoxysilane, dimethyldialkoxysilane, methyltrialkoxysilane and cyclic or linear dimethylpolysiloxanes. The composition has good thixotropy and can effectively provide a protective layer by spot potting. The silicone gel formed from the composition is excellent in solvent resistance, etc. and is effectively restrained from shrinkage or the like. Therefore the composition is highly suited to use as a protective material for semiconductor-type pressure sensors.
    • 一种硅凝胶组合物,其包含(A)具有仅由三氟丙基取代的硅氧烷单元构成的主链并以烯基封端的直链有机聚硅氧烷,(B)有机氢聚硅氧烷,(C)铂催化剂和(D) 通过用仅具有甲基作为取代基的硅化合物如六甲基二硅氮烷,三甲基氯硅烷,二甲基二氯硅烷,甲基三氯硅烷,三甲基烷氧基硅烷,二甲基二烷氧基硅烷,甲基三烷氧基硅烷和环状或线性二甲基聚硅氧烷处理,使表面变得疏水。 该组合物具有良好的触变性,可以通过点浇注有效提供保护层。 由该组合物形成的硅凝胶具有优异的耐溶剂性等,并且有效地抑制了收缩等。 因此,该组合物非常适合用作半导体型压力传感器的保护材料。