Patent ID: 7585551

Claim:
A polyimide resin polymer, containing at least one repeating unit selected from those of formula (A-1) and formula (A-2), wherein, P 1 is a tetravalent organic radical, and Q 1 is a group of formula (Q-1) or formula (Q-2); wherein, P 2 is a tetravalent organic radical, and Q 2 is a group of formula (Q-1) or formula (Q-2); wherein R 1 , R 2 , and R 3 independently represent hydrogen, halogen, C 1 -C 10 alkyl, or a monovalent, fluorine-containing C 1 -C 10 organic radical, with the proviso that R 1 , R 2 , and R 3 can not all be hydrogen; X 1 is —COO—, —CO—, —OCO—, —NHCO—, —CONH—, or —S—; R 4 is a monovalent C 1 -C 40 organic radical with an aliphatic or an aromatic or both skeletons; and wherein R 5 and R 7 independently represent hydrogen, halogen, C 1 -C 10 alkyl or a monovalent, fluorine-containing C 1 -C 10 organic radical; R 6 is C 1 -C 10 alkyl or a monovalent, fluorine-containing C 1 -C 10 organic radical; X 2 is O or S; and X 1 and R 4 are as defined above.