Patent ID: 8110652

Claim:
A polyimide resin containing a repeating unit represented by the following formula (1) and a repeating unit represented by the following formula (2): (in the formula (1) or (2), X represents a divalent aliphatic group having from 2 to 39 carbon atoms, a divalent alicyclic group having from 3 to 39 carbon atoms, a divalent aromatic group having from 6 to 39 carbon atoms or a divalent group composed of a combination thereof; at least one kind of a bonding group selected from the group consisting of —O—, —SO 2 —, —CH 2 —, —C(CH 3 ) 2 —, —OSi(CH 3 ) 2 —, —C 2 H 4 O— and —S— may intervene in a main chain of X; and X may have at least one kind of a functional group selected from the group consisting of a carboxyl group, a hydroxyl group and a carbonyl group), with a proportion of a group presented by the following formula (3): being 50% by mole or more (inclusive of 100% by mole) of the whole of X.