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    • 1. 发明授权
    • Liquid addition-curable silicone rubber composition for fixing roller purpose, and fixing roller
    • 用于定影辊用途的液体可加成固化的硅橡胶组合物和定影辊
    • US06472078B1
    • 2002-10-29
    • US09580528
    • 2000-05-30
    • Shigeki ShudoShigeru Ubukata
    • Shigeki ShudoShigeru Ubukata
    • B32B904
    • G03G15/2057C08G77/12C08G77/16C08G77/20C08G77/70C08K3/36C08L83/04C08L2205/02Y10T428/31663C08L83/00
    • A fixing roller purpose liquid addition-curable silicone rubber composition including (A) 100 parts by weight of an organopolysiloxane having in one molecule at least two alkenyl groups bonded to silicon atoms; (B) from 1 part by weight to 30 parts by weight of an organopolysiloxane having hydroxyl groups at both terminals of the molecular chain; (C) an organohydrogenpolysiloxane having in one molecule at least two hydrogen atoms bonded to silicon atoms; and (D) a platinum group metal compound in a catalytically effective quantity. The SiH groups in the component (C) is present in an amount of from 0.4 to 5.0 equivalent weight per one alkenyl group in the component (A). This composition is a substantially non-foamable and addition-curable liquid silicone rubber composition, which is therefore suitable for the fixing roller purpose. The composition has a good moldability to a mandrel and enables production of a fixing roller with a silicone rubber layer having superior toner releasability and mechanical strength.
    • 一种定影辊用液体可加成固化的硅橡胶组合物,其包含(A)100重量份的在一个分子中具有至少两个与硅原子键合的烯基的有机聚硅氧烷; (B)从1重量份到30重量份在分子链的两个末端具有羟基的有机聚硅氧烷; (C)在一个分子中具有至少两个与硅原子键合的氢原子的有机氢聚硅氧烷; 和(D)催化有效量的铂族金属化合物。 组分(C)中的SiH基团以组分(A)中每个烯基的0.4至5.0当量的量存在。 该组合物是基本上不发泡和可加成固化的液体硅橡胶组合物,因此适用于定影辊目的。 组合物对心轴具有良好的成型性,并且能够制造具有优异的调色剂剥离性和机械强度的硅橡胶层的定影辊。