Patent ID: 7612155

Claim:
A film-forming composition comprising a polymer of a compound represented by formula (I): wherein R 1 , R 2 and R 3 each independently represents an alkenyl group or an alkynyl group; X 1 , X 2 and X 3 each independently represents any substituent; l and n each stands for an integer of from 0 to 15 and m stands for an integer of from 0 to 14, with the proviso that l, m and n do not represent 0 simultaneously; o and q each independently stands for an integer of from 0 to 15 and p independently stands for an integer of from 0 to 14; and r stands for 0 or 1, with the proviso that when r=0, R 1 and R 3 each independently represents an alkenyl group.