Title:
【発明の名称】重合体スケール付着防止剤及びそれを使用する重合体製造方法
Document Type and Number:
Japanese Patent JP3091355
Kind Code:
B2
Abstract:
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.
Inventors:
Toshihide Shimizu
Mikio Watanabe
Mikio Watanabe
Application Number:
JP30988393A
Publication Date:
September 25, 2000
Filing Date:
November 16, 1993
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C07C50/10; C07C50/24; C07C50/32; C07C50/38; C07C225/30; C08F2/00; (IPC1-7): C08F2/00
Domestic Patent References:
| JP762004A |
Attorney, Agent or Firm:
Shuji Iwamiya