Patent ID: 7795370

Claim:
A tetracarboxylic acid compound represented by the following formula (1) or (2) wherein the formulae (1) and (2), A represents a divalent group; X 1 , X 2 , and X 3 represent independently a hydrogen atom, a halogen atom, a nitrile group, a nitro group, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an amino group, or an amide group, these groups may optionally further have substituents, and the carbon number of the carbon-containing group is 10 or less; R 1 , R 2 , R 3 , and R 4 represent independently a carboxyl group (—C(O)OH), or R 1 and R 2 represent an acid anhydride group (—C(O)OC(O)—) formed therefrom and/or R 3 and R 4 represent an acid anhydride group (—C(O)OC(O)—) formed therefrom; n represents an integer of 1 or 2; wherein the formula (2), a ring B represents a substituted or unsubstituted C 3 -C 20 cyclic group.