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    • 14. 发明授权
    • Room temperature rapid-curable silicone composition
    • 室温快速固化硅胶组合物
    • US06593413B2
    • 2003-07-15
    • US09893683
    • 2001-06-29
    • Hironobu MuramatsuTsuneo Kimura
    • Hironobu MuramatsuTsuneo Kimura
    • C08L8304
    • C08K5/5419C08G77/16C08G77/20C08G77/24C08G77/70C08K3/36C08L83/04Y10S528/901C08L2666/44C08L2666/54
    • A room temperature rapid-curable silicone composition is provided which includes (A) an organopolysiloxane terminated with hydroxyl groups, having a viscosity of from 25 mPa·s to 1,000,000 mPa·s at 25° C.; (B) a compound selected from the group consisting of a hydrolyzable silane represented by the following general formula (1): RnSiX4−n  (1) wherein R represents a monovalent hydrocarbon group having 1 to 12 carbon atoms; X represents a compound selected from the group consisting of a ketoxime group, an alkoxyl group, an alkenoxyl group and an acyloxyl group; and n represents an integer of 0 to 2, and a partial hydrolysis-condensation product thereof; and (C) a water-containing wet-process silica having an average particle diameter of 100 &mgr;m or smaller, which is a chief source for feeding water necessary for condensation curing reaction. This composition has a good storage stability, is rapid-curable upon mere blending, and becomes an elastic body with good heat resistance, moisture resistance and water-exposure adhesive properties. The composition is useful as a sealant for various electric and electronic parts and common constructional joints, as an oil seal for automobiles and also as a coating material.
    • 提供室温快速固化的硅氧烷组合物,其包括(A)在25℃下具有25mPa.s至1,000,000mPa.s粘度的羟基封端的有机聚硅氧烷。 (B)选自由以下通式(1)表示的可水解硅烷的化合物:其中R表示具有1至12个碳原子的一价烃基; X表示选自酮肟基,烷氧基,烯氧基和酰氧基的化合物; n表示0〜2的整数,及其部分水解缩合物。 和(C)平均粒径为100μm以下的含水湿法二氧化硅,其为冷凝固化反应所需的供水的主要来源。 该组合物具有良好的储存稳定性,可以通过混合快速固化,成为具有良好耐热性,耐湿性和耐水性粘合性的弹性体。 该组合物可用作各种电气和电子部件和通用结构接头的密封剂,作为汽车用油封,也可用作涂料。