| abstract |
A cured film is formed by using a curable composition comprising a liquid repellent polymer having units (u1) based on a liquid repellent compound represented by the following formula (m1): n n n n n n n n n n wherein Cf is a C 1-20 fluoroalkyl group or a C 1-20 fluoroalkyl group having an etheric oxygen atom between carbon atoms,n each of R 1 and R 2 which are independent of each other, is a hydrogen atom, a C 1-6 alkyl group or a phenyl group, X is an oxygen atom, a sulfur atom, a nitrogen atom or NH, n in an integer of from 0 to 4, m is 1 when X is an oxygen atom, a sulfur atom or NH, or 2 when X is a nitrogen atom, Z is R 4 R 5 C═CR 3 —CO—, and each of R 3 , R 4 and R 5 which are independent of one another, is a hydrogen atom or a methyl group. |