发明授权
US5201945A 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： US853516申请日： 1992-03-18
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公开(公告)号： US5201945A公开(公告)日： 1993-04-13
- 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： JPX3-080789 19910319; JPX3-210310 19910726
- 主分类号： C08F2/00
- IPC分类号： C08F2/00 ; C08L5/08
摘要：
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a water-soluble basic polysaccharide and (B) an organic acid compound. 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.
公开/授权文献
- US5856554A Process for producing diaryl carbonates 公开/授权日：1999-01-05
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