Curable composition

A method for the adhesion of adherends which comprises applying a curable composition to one or more adherend and bonding said adherends while tackiness is still present, wherein the curable composition comprising (a) an oxyalkylene polymer containing at least one reactive silicon group per molecule and having a number average molecular weight of not less than 3000 and an Mw/Mn ratio of not higher than 1.6, (b) a copolymer having a molecular chain which comprises monomer units (A) and monomer units (B), wherein (A) is at least one member selected from the group consisting an alkyl acrylate monomer unit and an alkyl methacrylate monomer unit each having 1 to 8 carbon atoms in the alkyl moiety thereof, and (B) is at least one member selected from the group consisting of an alkyl acrylate monomer unit and an alkyl methacrylate monomer unit each having 10 or more carbon atorns and the total number of monomer units (A) and monomer units (B) constitutes more than 50% of the monomer units in the copolymer (b), and (c) a curing catalyst.

A process for producing a contact adhesive, by mixing components comprising (a) an oxyalkylene polymer containing at least one reactive silicon group per molecule and having a number average molecular weight of not less than 3000 and an Mw/Mn ratio of not higher than 1.6, (b) a copolymer having a molecular chain which comprises monomer units (A) and monomer units (B), wherein (A) is at least one member selected from the group consisting an alkyl acrylate monomer unit and alkyl methacrylate monomer unit each having 1 to 8 carbon atoms in the alkyl moiety thereof, and (B) is at least one member selected from the group consisting of an alkyl acrylate monomer unit and an alkyl methacrylate monomer unit each having 10 or more carbon atoms and the total number of monomer units (A) and monomer units (B) constitutes more than 50% of the monomer units in the copolymer (b), and (c) a curing catalyst.