Patent ID: 10119030

Abstract:
A coloring composition having higher heat resistance as compared with the conventional coloring composition, including a compound represented by general formula (1), and a polymer having a monomer unit derived from the compound. (wherein R1 to R4 each independently represent a hydrogen atom, an alkyl group; R7 represents a hydrogen atom or a methyl group; R8 and R9 each independently represent a hydrogen atom or an alkyl group; Y represents a nitrogen atom or a group represented by formula (1-1):  A1 represents an alkylene group having at least one group selected from —O—, —OCO—, —COO—, —NHCO—, —CONH—, —NHCONH— and an arylene group in the chain; A2 represents —NH— or —O—; An −represents an anion containing an aryl group having an electron-withdrawing substituent; n represents an integer of 0 to 3; R8 and R9 may form a cyclic structure of a 5 to 6 membered ring together with —N—(CH2)n—Y— bonding thereto.)