| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition having excellent thermal curability, hardly curing at ordinary temperature, and curing to a tack-free state when heated for a short time by including a hydrolyzable-silyl-containing polyether polymer with a compound having a carbamate group and a crosslinkable hydrolyzable silyl group in the molecule, and a silanol condensation catalyst. SOLUTION: This composition comprises 100 pts.wt. total of (A) a polyether type polymer having a main chain being essentially a polyether and having a crosslinkable hydrolyzable silyl group on at least one molecular terminal and (B) a compound having a carbamate group and a crosslinkable hydrolyzable silyl group in the molecule and 1-5 pts.wt. (C) silanol condensation catalyst. It is desirable that component A has a number-average molecular weight of 4,000-30,000. When component A is one having a molecular weight distribution (Mw/Mn) of at most 1.6, it can show good handleability in e.g. a mixing step, and can form a thermally curable composition showing excellent elongation in a cured state, and therefore can be desirably used.
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