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    • 8. 发明授权
    • Curable composition for forming low bleeding gel type cured product
    • 用于形成低出血凝胶型固化产品的可固化组合物
    • US06962752B2
    • 2005-11-08
    • US10338706
    • 2003-01-09
    • Kenichi FukudaMikio Shiono
    • Kenichi FukudaMikio Shiono
    • C08L71/00C08G65/00C08G65/336C08K5/5419C08L83/05H01L23/29H01L23/31B32B27/04C08L101/04
    • C08G65/336C08G65/007C08G77/12C08L83/04Y10T428/3154Y10T428/31544Y10T428/31663C08L2666/14
    • A curable composition comprising:(A) a branched polyfluorodialkenyl compound represented by a general formula (1): CH2═CH—(X)a-Rf1-(X′)a—CH═CH2  (1) wherein, X and X′ are bivalent groups such as —CH2— and —CH2O—, a represents, independently, either 0 or 1, and Rf1 is a specific bivalent fluorine-containing group, (B) a branched polyfluoromonoalkenyl compound represented by a general formula (2): Rf2-(X′)a—CH═CH2  (2) wherein, X′ and a are as defined above, and Rf2 is a specific fluorine-containing group, (C) an organohydrogensiloxane compound with at least two hydrogen atoms bonded to silicon atoms, and (D) a platinum group metal catalyst; as well as a low bleeding gel type cured product obtained by curing such a composition, and an electrical or electronic component sealed or encapsulated using such a cured product. The gel type cured product displays very little bleeding of free oil constituents from the gel as a result of stress such as pressure fluctuation or heat history.
    • 一种可固化组合物,其包含:(A)由通式(1)表示的支链多氟联苯基化合物:<?in-line-formula description =“In-line formula”end =“lead”?> CH 2 (X)a - (X)a - (X')a-CH 2 CH 2 >(1)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中X和X'是二价基团,例如-CH 2 - CH 2 O-,a独立地表示0或1,Rf 1是特定的二价含氟基团,(B)支化多氟单链烯基化合物 通式(2):<?in-line-formula description =“In-line formula”end =“lead”?> Rf <2> - (X') > -CH-CH 2(2)<?in-line-formula description =“In-line formula”end =“tail”?>其中,X'和a如上定义,和 Rf 2是特定的含氟基团,(C)具有至少两个与硅原子键合的氢原子的有机氢硅氧烷化合物,和(D)平台 inum组金属催化剂; 以及通过固化这种组合物获得的低出血凝胶型固化产物,以及使用这种固化产物密封或包封的电气或电子部件。 由于应力如压力波动或热历史,凝胶型固化产物显示出很少的游离油成分从凝胶中渗出。