申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:EP0653441A1
公开(公告)日:1995-05-17
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising a naphthoquinone dimer compound. This agent is applied to the inner wall surfaces of a polymerization vessel to form a coating. Such a vessel is effective in preventing polymer scale deposition, not only on the areas located in the liquid-phase region but also on the areas around the interface between the gas and liquid phases in the vessel, and useful in producing a polymer that shows 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,由萘醌二聚体化合物组成。将该剂涂抹在聚合容器的内壁表面形成涂层。这种容器可有效防止聚合物垢沉积,不仅可防止位于液相区的区域沉积,还可防止容器中气相和液相界面周围的区域沉积,并有助于生产出在形成片材或类似材料时鱼眼少、白度好的聚合物。