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    • 7. 发明授权
    • Heat conductive silicone composition
    • 导热硅胶组合物
    • US07737212B2
    • 2010-06-15
    • US11439277
    • 2006-05-24
    • Toshiyuki OzaiNaoki Yamakawa
    • Toshiyuki OzaiNaoki Yamakawa
    • C08L83/04
    • C08L83/04C08G77/045C08G77/12C08G77/14C08G77/18C08G77/20C08L83/00
    • A heat conductive silicone composition is provided, which includes (A) an organopolysiloxane having the formula (1): {(CH2═CH)R12SiO1/2}L(R1SiO3/2)m(R12SiO)n{O1/2SiR12—R2—SiR1(3-a)(OR3)a}o  (1) wherein R1 represents monovalent hydrocarbon groups, R2 represents an oxygen atom or a bivalent hydrocarbon group, R3 represents an alkyl group, alkoxyalkyl group, alkenyl group, or acyl group, L and o represent numbers from 1 to 10, m represents a number from 0 to 10, n represents a number from 5 to 100, a represents an integer from 1 to 3, and when m=0, L+o=2 and R2 is a bivalent hydrocarbon group, (B) a heat conductive filler, and (C) an organopolysiloxane other than the component (A). Even upon high-level packing with the heat conductive filler to obtain a highly heat conductivity, the composition still exhibits favorable handling and moldability properties.
    • 提供了一种导热硅氧烷组合物,其包括(A)具有式(1)的有机聚硅氧烷:{(CH 2 = CH)R 12 SiO 1/2/2)L(R 1 SiO 3/2)m(R 12 SiO)n {O 1 / 2SiR 12 -R 2 - SiR1(3-a)(OR3)a} o(1)其中R1表示一价烃基,R2表示氧原子或二价烃基,R3表示烷基,烷氧基烷基,烯基或酰基,L o表示1〜10的数,m表示0〜10的数,n表示5〜100的数,a表示1〜3的整数,m = 0时,L + o = 2,R2表示 二价烃基,(B)导热性填料,(C)除(A)成分以外的有机聚硅氧烷。 即使使用导热填料进行高级包装以获得高导热性,组合物仍然表现出良好的处理和成型性能。
    • 9. 发明授权
    • Addition reaction-curable liquid silicone rubber compositions and process of preparing same
    • 加成反应可固化液体硅橡胶组合物及其制备方法
    • US07271215B2
    • 2007-09-18
    • US11151255
    • 2005-06-14
    • Masayuki IkenoShigeki ShudoNaoki YamakawaYujiro Taira
    • Masayuki IkenoShigeki ShudoNaoki YamakawaYujiro Taira
    • C08L83/04
    • C08L83/04C08G77/12C08G77/20Y10T428/2995C08L83/00
    • An addition reaction-curable liquid silicone rubber composition includes an organopolysiloxane containing at least one Si-bonded vinyl group only at each end of its backbone and having a viscosity of from 1 to 1,000 Pa·s at 25° C., an organopolysiloxane containing at least two Si-bonded vinyl groups only in side chains on its backbone and having a viscosity of from 0.1 to 100 Pa·s at 25° C., the amount of siloxane units bonded to the vinyl groups being from 2 to 20 mole % of its total siloxane units, finely divided silica having a specific surface area of at least 50 m2/g, hexamethyldisilazane, water, an organohydrogenpolysiloxane containing at least two Si-bonded hydrogen atoms per molecule, and a hydrosilation catalyst. Another addition reaction-curable liquid silicone rubber composition additionally includes a specific non-functional dimethylpolysiloxane. The silicone rubber compositions are cured into products having a hardness of at least 75 as measured by a type-A durometer and an elongation at break of at least 200%.
    • 加成的可反应固化的液体硅橡胶组合物包括仅在其主链的每个末端含有至少一个与Si键合的乙烯基的有机聚硅氧烷,并且其在25℃下的粘度为1至1,000Pa.s, 至少两个Si键合的乙烯基仅在其主链的侧链上,并且在25℃下的粘度为0.1至100Pa.s,与乙烯基键合的硅氧烷单元的量为2-20摩尔% 其总硅氧烷单元,具有至少50m 2 / g比表面积的细分二氧化硅,六甲基二硅氮烷,水,每分子含有至少两个与Si键合的氢原子的有机氢聚硅氧烷和氢硅化物 催化剂。 另一种另外的反应可固化的液体硅橡胶组合物另外包括特定的非官能的二甲基聚硅氧烷。 将硅橡胶组合物固化成硬度至少为75的产品,通过A型硬度计测定,断裂伸长率至少为200%。