METHOD FOR IMPROVING CURABILITY IN DEEP PART OF CURABLE RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To solve the problem that the more increase of a curing rate and the more improvement of curability in a deep part are strongly required, and the more improvement of weather resistance is left as a large problem. SOLUTION: This method for improving the curability in the deep part of a curable resin composition comprising (A) a silyl group-containing ethylene-α- olefin-nonconjugated polyene random copolymer rubber having a constituent unit derived from a terminal vinyl group-containing norbornene compound of the nonconjugated polyene, and containing a hydrolyzable silyl group in the molecule, and (C) a silanol condensing catalyst is characterized in that (B) a silicon compound having two or more hydroxy groups bonded to the silicon atoms in one molecule and containing the two or more silicon atoms is added to the curable resin composition comprising the components (A) and (C) so that the ratio of the formulated components (B) to (A) may be regulated so that the number of the hydroxy groups bonded to the silicon atoms of the component (B) may be 0.1-8 based on one of the hydroxy group or the hydrolyzable group of the component (A).