Patent ID: 7452930

Claim:
A curable composition comprising: (A) a natural asphalt and/or petroleum asphalt, and (B) a polyoxyalkylene polymer having one or more reactive silicon groups represented by the following general formula (1): —Si(R 1 3−a )X a (1) wherein R 1 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms or a triorganosiloxy group represented by (R′O) 3 Si—, where, when two R 1 s are present, they may be the same or different, and R′ is a monovalent hydrocarbon group having 1 to 20 carbon atoms, and three R's may be the same or different; X represents a hydroxy group or a hydrolyzable group, where, when two or more Xs are present, they may be the same or different; and a represents 1, 2 or 3; and wherein the (B) component has one or more groups represented by the following general formula (4): —NR 2 —C(═O)— (4) where R 2 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms.