ANTI-FOGGING FILM-FORMING MATERIAL, COATING LIQUID FOR FORMING ANTI-FOGGING FILM, ANTI-FOGGING ARTICLE, AND METHODS FOR PRODUCING THESE

摘要

Disclosed is an antifogging film-forming material obtained by reacting, in the presence of a quaternary ammonium salt or quaternary phosphonium salt, a copolymer represented by a certain general formula with a multifunctional epoxy compound having a solubility of 40-100 mass% in 25°C water. The antifogging film-forming material is characterized by having a weight average molecular weight of 100,000-5,000,000. With this material, it becomes possible to obtain an antifogging article excellent in antifogging property, heat resistance, chemical resistance and abrasion resistance.