A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing a condensation product of (A) an aromatic amine compound and (B) a quinone compound. This agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Such a vessel is effective in preventing polymer scale deposition and useful in producing a polymer that shows very few fish eyes and good whiteness when formed into sheets or the like.
一种聚合物防垢剂,用于具有
乙烯不饱和双键的单体的聚合,由碱性溶液组成,其中含有 (A) 芳香胺化合物和 (B) 醌化合物的缩合产物。该剂用于在聚合容器的内壁等处形成涂层。这种容器可有效防止聚合物鳞片沉积,并有助于生产出在形成片材或类似材料时很少显示鱼眼和良好白度的聚合物。