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    • 22. 发明授权
    • Liquid silicone rubber composition for lubricant seal
    • 液体硅橡胶组合物用于润滑剂密封
    • US5908888A
    • 1999-06-01
    • US653738
    • 1996-05-23
    • Akito NakamuraYuichi Tsuji
    • Akito NakamuraYuichi Tsuji
    • C08K3/00C08K3/22C08L83/04C08L83/05C08L83/07C09K3/10C08K3/18
    • C08L83/04C08G77/12C08G77/20
    • A liquid silicone rubber composition for a lubricant seal having after it is cured high resistance to lubricant, with high stability displayed even in lubricant that has been subjected to thermal and oxidative degradation, and having its rubber elasticity well maintained. The liquid silicone rubber composition for a lubricant seal comprises the following ingredients: (A) an organopolysiloxane containing 2 or more silicon-atom-bonded alkenyl groups in each molecule; (B) an inorganic filler; (C) an oxide or hydroxide of an alkaline-earth metal with an atomic weight of 40 or greater; (D) an organohydrogensiloxane containing 3 or more silicon-atom-bonded hydrogen atoms in each molecule; and (E) a platinum-type catalyst.
    • 一种用于润滑剂密封的液体硅橡胶组合物,其在固化后具有高耐润滑性,即使在经受热和氧化降解的润滑剂中,也具有高稳定性,并且其橡胶弹性保持良好。 用于润滑剂密封的液体硅橡胶组合物包括以下成分:(A)每个分子中含有2个或更多个硅原子键合的链烯基的有机聚硅氧烷; (B)无机填料; (C)原子量为40以上的碱土金属的氧化物或氢氧化物; (D)在各分子中含有3个以上与硅原子键合的氢原子的有机氢硅氧烷; 和(E)铂型催化剂。
    • 26. 发明授权
    • Two-part silicone rubber composition
    • 两部分硅橡胶组合物
    • US08877860B2
    • 2014-11-04
    • US14007986
    • 2012-03-28
    • Tomoko TasakiYuichi Tsuji
    • Tomoko TasakiYuichi Tsuji
    • C09D183/04C08K5/09C08L83/04C09J183/04C08G77/12C08G77/20C08K3/26
    • C08K5/09C08G77/12C08G77/20C08K3/26C08L83/04C09D183/04C09J183/04C08L83/00
    • A two-part curable liquid silicone rubber composition comprises a first liquid composition and a second liquid composition. The first and second liquid compositions are stored separately and yield, upon mixing, a silicone rubber forming composition. The silicone rubber composition comprises: (A) an alkenyl group-containing organopolysiloxane comprising (A-1) an organopolysiloxane having only a silicon-bonded alkenyl group at each molecular terminal and (A-2) an organopolysiloxane having from 1 to 4 silicon-bonded alkenyl groups in side molecular chains and containing not greater than 2.0 wt. % of alkenyl groups; (B) a calcium carbonate powder; (C) a hydrosilylation reaction catalyst; and (D) an organohydrogenpolysiloxane having silicon-bonded hydrogen atoms.
    • 两部分可固化液体硅橡胶组合物包含第一液体组合物和第二液体组合物。 第一和第二液体组合物分开储存,并在混合时产生形成硅橡胶的组合物。 所述硅橡胶组合物包含:(A)含有烯基的有机聚硅氧烷,其包含(A-1)在各分子末端仅具有与硅键合的烯基的有机聚硅氧烷和(A-2)具有1〜4个硅原子的有机聚硅氧烷, 侧链分子链中的键合链烯基并且不大于2.0重量% %的烯基; (B)碳酸钙粉末; (C)氢化硅烷化反应催化剂; 和(D)具有硅键合氢原子的有机氢聚硅氧烷。