Curing composition containing polyether having reactive silicon-containing group and a (meth)acrylate polymer

Claim 1

A curing composition which comprises (A) a polyether having at least one reactive silicon-containing group in the molecule, wherein the main chain of the polyether consists of chemically linked recurring units represented by the general formula: --R.sup.4 O-- wherein R 4 is a bivalent hydrocarbon group having 1 to 8 carbon atoms, the reactive silicon-containing group is a group represented by the general formula: ##STR15## wherein R 1 is a bivalent organic group having 1 to 20 carbon atoms, R 2 is hydrogen or a monovalent organic group having 1 to 20 carbon atoms, R 3 is a monovalent hydrocarbon group having 1 to 20 carbon atoms, or a triorganosiloxy group represented by the formula: (R') 3 SiO-- wherein R' is a monovalent hydrocarbon group having 1 to 20 carbon atoms, a is 0, 1, 2 or 3, b is 0, 1 or 2, c is 0 or 1, provided that 1≦a+b≦4, X is hydroxyl group or a hydrolyzable group, and m is 0 or an integer of 1 to 18, and (B) a polymer selected from the group consisting of an acrylate polymer, a methacrylate polymer and an admixture thereof, wherein the polymer is prepared from a monomeric mixture containing at least 50% by weight of an alkyl acrylate monomer or an alkyl methacrylate monomer, in which said alkyl group has 2 to 14 carbon atoms.