发明名称 |
Method of preventing polymer scale deposition |
摘要 |
A method of preventing polymer scale deposition in a polymerization vessel in polymerization of a particular monomer having an ethylenic double bond having a high dissolving power against the conventional scale preventive coatings, wherein said polymerization is carried out in a polymerization vessel of which the inner wall has been previously coated with a first coating solution comprising: (A) a water-soluble anionic dye, and (B) at least one member selected from the group consisting of inorganic colloids and cationic dyes, to form a first coating, and the first coating thus formed has been then coated with a second coating solution comprising: (C) an alkaline earth metal compound, and at least one member selected from the group consisting of: (D) a water-soluble anionic dye and (E) an inorganic colloid, to form a second coating. The polymerization vessel having the double coating as prepared above is also disclosed. Polymer scale deposition can be effectively prevented.
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申请公布号 |
US5244986(A) |
申请公布日期 |
1993.09.14 |
申请号 |
US19920941767 |
申请日期 |
1992.09.04 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
WATANABE, MIKIO;USUKI, MASAHIRO;UENO, SUSUMU |
分类号 |
C08F2/00 |
主分类号 |
C08F2/00 |
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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