| 摘要 |
PURPOSE:To obtain the titled composition free from deterioration in mechanical properties, with good storage stability in one packaging form, suitable as construction sealing materials, by incorporating a specific polymer carrying hydrolyzable silicon functional group with specified amount of active alumina fine powder, etc. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100pts.wt. of a hydrolyzable silicon functional group (said hydrolyzable group being e.g. alkoxy one)-contg. polymer with its main chain essentially constituted by polyether (e.g. polypropylene oxide) with (B) 0.05-200 (pref. 1-50)pts. by wt. of active alumina fine powder with an average particle size <=10mu and (C) 0.001-10pts.wt. of a curing catalyst (e.g. tin octanoate).
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