Patent ID: 7868084

Claim:
A curable composition comprising a reactive silicon group-containing polyoxyalkylene polymer which is obtained by reacting a polyoxyalkylene polymer (A) having a molecular weight distribution of 1.6 or less, a number average molecular weight of 15,000 to 50,000, and 0.8 or more reactive groups, on average, per molecule thereof with an organic compound (B) having in the molecule thereof a reactive silicon group and a functional group capable of reacting with the reactive groups of the polymer (A) in a proportion of 0.8 to 1.5 molecules of the organic compound (B), on average, per molecule of the component (A); a filler (C); a curing catalyst (D); and a plasticizer in an amount of 0 to less than 2 parts by weight in relation to 100 parts by weight of the reactive silicon group-containing polyoxyalkylene polymer.