| abstract |
A agent containing a polyoxyalkylene polymer (A) having a reactive silicon group, a (meth) acrylic acid ester polymer (B) having a reactive silicon group, and an epoxy resin curing agent (D). , A multi-component curable composition comprising agent B, which comprises an epoxy resin (C) and a silanol condensation catalyst (E). The (meth) acrylic acid ester-based polymer (B) polymerizes the (meth) acrylic acid alkyl ester (b1) having an alkyl carbon number of 1 to 3 in an amount of 40% by weight or more and 70% by weight or less with a reactive silicon group. It is a polymer having a monomer (b2) having a sex unsaturated group and a macromonomer (b3) which is a (meth) acrylic acid ester-based polymer having a polymerizable unsaturated group as a constituent monomer. |