| 摘要 |
The curable composition of the invention comprises (A) an oxypropylene polymer which contains, in its main polymer chain, a repeating unit of the formula and which has at least one silicon atom-containing group with a hydroxyl group or a hydrolyzable group being bound to the silicon atom and has an Mw/Mn ratio of not more than 1.6 and a number average molecular weight of not less than 6,000, and (B) 0.01 to 10 parts by weight, per 100 parts by weight of the oxypropylene polymer (A), of a reaction product derived from an organotin of the formula R5R6SnO wherein R5 and R6 each is a monovalent hydrocarbon group, and an ester compound, and exhibits fast curing characteristics. The cured products obtained are excellent in heat resistance and weather resistance.
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