COMPOUND FOR ANISOTROPIC FILM, COMPOSITION FOR ANISOTROPIC FILM CONTAINING THE COMPOUND FOR ANISOTROPIC FILM, ANISOTROPIC FILM AND POLARIZING ELEMENT

摘要

PPROBLEM TO BE SOLVED: To provide a compound for anisotropic films having high polarization characteristics by a wet film-forming process, an anisotropic film containing the compound, and a polarizing element. PSOLUTION: The compound for anisotropic films is in the form of a free acid represented by formula (1) (wherein n is an integer of 1-3; BSP1/SPis a divalent aromatic hydrocarbon group which may have a substituent or a divalent heterocyclic group which may have a substituent; DSP1/SPis an aromatic hydrocarbon group which is substituted with at least one sulfo group or a heterocyclic group which is substituted with at least one sulfo group; and RSP3/SPrepresents an alkyl group which may have a substituent). PCOPYRIGHT: (C)2010,JPO&INPIT