发明名称 |
DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION, METHOD FOR PRODUCING VINYL POLYMER, AND VINYL CHLORIDE RESIN |
摘要 |
Provided is a dispersion stabilizer which exhibits an excellent polymerization stability when used in suspension polymerization for a vinyl chloride-based resin, and gives a vinyl chloride-based resin having few coarse particles, few fish eyes after resin molding, an excellent plasticizer absorption, and an excellent hue. Also provided is a high-quality vinyl chloride-based resin produced using the dispersion stabilizer. The present invention is a dispersion stabilizer for suspension polymerization containing a polyvinyl alcohol-based polymer (B) which has a double bond in a side chain and which is obtainable by acetalization of a polyvinyl alcohol-based polymer (A) with a monoaldehyde having an olefinic unsaturated double bond. |
申请公布号 |
EP3150639(A1) |
申请公布日期 |
2017.04.05 |
申请号 |
EP20150799690 |
申请日期 |
2015.05.26 |
申请人 |
Japan Vam & Poval Co., Ltd. |
发明人 |
KOZUKA, Yoshiaki;OMORI, Takehiro |
分类号 |
C08F2/20;B01F17/52;C08F8/28;C08F16/06 |
主分类号 |
C08F2/20 |
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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