发明名称 |
Polymer scale preventive agent comprising a condensation product of a quinone compound |
摘要 |
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing (A) a condensation product having a molecular weight of 400 to 50,000 obtained by condensing a quinone compound. This agent is applied to the inner wall surfaces of a polymerization vessel, and dried 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 is useful in producing a polymer that shows few fish eyes and good whiteness when formed into sheets or the like.
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申请公布号 |
US5889103(A) |
申请公布日期 |
1999.03.30 |
申请号 |
US19970954746 |
申请日期 |
1997.10.20 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
SHIMIZU, TOSHIHIDE;WATANABE, MIKIO |
分类号 |
B01J19/00;C08F2/00;(IPC1-7):C08K3/00 |
主分类号 |
B01J19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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