Patent ID: 7772332

Claim:
A curable composition, comprising: (A) a polymer having a silicon group which can be crosslinked through formation of a siloxane bond, (B) fluorosilanes represented by general formula (1): R 1 4-a SiF a (1) wherein R 1 's, the number of which is 4-a, are each independently a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, or at least one selected from the group consisting of siloxy groups represented by R 2 3 SiO—, wherein R 2 's are each independently a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms or a fluorine atom, and a is any of 1, 2 or 3, and (C) an amine based compound selected from the group consisting of aliphatic amines, aromatic amines, heterocyclic amines, guanidines and biguanides, wherein the component (A) is a polymer having a number-average molecular weight of 3,000 to 100,000, and has one or more silicon group(s) represented by general formula (2): —(SiR 4 2-c Z c O) 1 —SiR 3 3-b Z b (2) wherein R 3 and R 4 are each independently a hydrocarbon group having 1 to 20 carbon atoms, or at least one selected from the group consisting of triorganosiloxy groups represented by R 5 3 SiO—, wherein R 5 's are each independently a hydrocarbon group having 1 to 20 carbon atoms; Z is an alkoxy group b is any of 0, 1, 2 or 3 and c is any of 0, 1 or 2, provided that a case where b and c are each 0 is excluded, and 1 is an integer of 0, or 1 to 19 on average per molecule of the component (A) an amount of component (B) is 0.001 to 10 parts by weight of component (A), and an amount of component (C) is 0.1 to 20 parts by weight of component (A).