| 摘要 |
PURPOSE:To obtain a composition capable of giving rubbery elastomer which is highly flexible, high in extensibility and god in storage stability in one packaging form, by incorporating each specific silicon compound and silazane compound and curing catalyst in a polymer carrying hydrolyzable silicon functional group with its main chain constituted by polyether. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100pts.wt. of a hydrolyzable silicon functional group-contg. polymer with its main chain essentially constituted by polyether (said hydrolyzable group being alkoxy, said polyether polypropylene oxide) with (B) 0.05-30pts.wt. of a silicon composed carrying hydrolyzable group bonded to silicon atom (a silane having in the molecule three alkoxy groups should be used), (C) 5-300wt% based on the component.B, of a silazane compound of formula R<1>3SiNHSiR<1>3 (R<1> is monovalent hydrocarbon or H) (e.g. hexamethyl disilazane) and (D) 0.001-10pts.wt. of a curing catalyst.
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