Patent ID: 7374857

Claim:
A bisimide compound shown by the general formula [5]: wherein two R 3 s are each independently a hydrogen atom or a group shown by the general formula [6]: —SO 2 R 4 [6] wherein R 4 is an alkyl group having 1 to 12 carbon atoms, a haloalkyl group having 3 to 12 carbon atoms, an aryl group which may have a substituent, an aralkyl group which may have a substituent, an aromatic heterocyclic group, which may have a substituent, a camphor group or a naphthoquinonediazide group; and the said substituent is selected from the group consisting of a halogen atom, an alkyl group, a haloalkyl group having 1 to 4 atoms, an alkoxy group, a haloalkoxy group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, a nitro group, an N,N-dimethylamino group and an acetamide group. A 2 is a direct-linkage, an —O— group or a —C(CF 3 ) 2 — group; and provided that when A 2 is an —O— group, then at least one R 3 is a group shown by the general formula [6], wherein when R 4 is an aryl group having an alkyl group substituent, the alkyl group has 2 to 12 carbon atoms.