| 摘要 |
PURPOSE:To improve the storage stability of the obtained composition without decreasing the elongation of its cured product, by mixing an alkyl (meth)acrylate polymer with an oxyalkylene polymer, two specified silicon compounds and a cure accelerator. CONSTITUTION:100pts.wt. total of 5-5,000pts.wt. alkyl (meth)acrylate polymer (A) of a number-average MW of 500-100,000, having an Si-bonded hydroxyl group or hydrolyzable group and an Si-containing group capable of being crosslinked by the formation of a siloxane bond and 100pts.wt. oxyalkylene polymer (B) of a number-average MW of 500-30,000, having an Si-bonded hydroxyl group or hydrolyzable group and an Si-containing group capable of being crosslinked by forming a siloxane bond is mixed with 0.01-30pts.wt. Si compound (C) having 3-4 Si-bonded hydrolyzable groups, 0.1-30pts.wt. Si compound (D) of the formula [wherein R' is an (un)substituted monovalent hydrocarbon group, and X is a hydrolyzable group] and 0.01-10pts.wt. cure accelerator (E) (e.g., dibutyltin laurate).
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