Combination of an organothio compound and a zinc mercapto ester as heat stabilizer in PVC processing
申请人:MORTON INTERNATIONAL, INC.
公开号:EP0987295A1
公开(公告)日:2000-03-22
The zinc burn experienced during the processing of a composition comprising a halogen-containing polymer and a zinc mercaptoester is eliminated by the addition of an organothio compound. The organothio compound is selected from mercaptans and organic sulfides. Dithiodiglycol and the polyformals and polyacetals thereof are preferred as the organic sulfides. Mercaptoethanol is a preferred mercaptan.
在加工由含卤聚合物和巯基锌酯组成的组合物时,加入有机硫化合物可消除锌烧伤。硫代有机化合物选自硫醇和有机硫化物。有机硫化物以二硫二乙二醇及其聚甲醛和聚乙醛为佳。巯基乙醇是一种优选的硫醇。