发明授权
US5264505A Polymer scale preventive agent, polymerization vessel for preventing
polymer scale deposition, and process of producing polymer using said
vessel
失效
聚合物垢防止剂,用于防止聚合物垢沉积的聚合容器,以及使用所述容器生产聚合物的方法
- 专利标题: Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel
- 专利标题(中): 聚合物垢防止剂,用于防止聚合物垢沉积的聚合容器,以及使用所述容器生产聚合物的方法
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申请号: US875832申请日: 1992-04-30
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公开(公告)号: US5264505A公开(公告)日: 1993-11-23
- 发明人: Toshihide Shimizu , Minoru Shigemitsu
- 申请人: Toshihide Shimizu , Minoru Shigemitsu
- 申请人地址: JPX Tokyo
- 专利权人: Shin-Etsu Chemical Co., Ltd.
- 当前专利权人: Shin-Etsu Chemical Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX3-126813 19910430
- 主分类号: C08F2/00
- IPC分类号: C08F2/00 ; C08F14/00 ; C08F14/06
摘要:
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising a pyrogallol-acetone resin. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.
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