LIGHT SHIELDING MATERIAL, METHOD FOR PRODUCING LIGHT SHIELDING MATERIAL, ULTRAVIOLET ABSORPTION FILM, INFRARED ABSORPTION FILM, PHOTOMASK, AND ELECTROMAGNETIC WAVE SHIELD FILM

摘要

PPROBLEM TO BE SOLVED: To provide a method for producing a light shielding member which can produce a light shielding material provided with a metal particle-containing film having excellent adhesion with a base material and optical solidity, and having excellent surface hardness and light shieldability to various wavelengths by a simple process. PSOLUTION: The method for producing a light shielding material comprises: a stage (a) where the surface of a base material capable of generating radicals by exposure is brought into contact with a compound having an unsaturated part capable of radical polymerization and a part adsorbing a meal ion or a metal salt, and thereafter, exposure is performed, thus a directly bonded polymer is produced on the base material, so as to form a polymer layer; a stage (b) where a metal ion or a metal salt is imparted to the polymer layer; a stage (c) where the metal ion or a metal ion in the metal salt is reduced, so as to precipitate metal particles; and a stage (d) where, after the metal particles are precipitated, a monovalent metal salt structure in the polymer composing the polymer layer is subjected to one selected from the group consisting of polyvalent metal crosslinking treatment, chemical modification and acid treatment. PCOPYRIGHT: (C)2009,JPO&INPIT