专利申请号 :0 0 32 4 734.1目前 ,我国建筑涂料均为液体、膏状形态 ,采用聚乙烯醇作主要成膜物质。 1999年 7月2 1日国家建材局下文禁止发展聚乙烯醇液体、膏状涂料的生产 ,旨在减少环境污染 ,与发达国家同类先进技术接轨。瓷质干粉涂料采用常见物质高分子复合而成 ,有效地改 Patent Application No.: 0 0 32 4 734.1 At present, China’s architectural coatings are in the form of liquids and pastes, and polyvinyl alcohol is used as the main film-forming substance. On July 21, 1999, the National Building Materials Bureau banned the development of the production of polyvinyl alcohol liquids and paste-like paints, aiming to reduce environmental pollution and link up with advanced technologies of the same type in developed countries. Porcelain dry powder coating is made of common polymer compound and effectively changed