发明名称 |
Production method of porous spherical particles of vinyl polymer |
摘要 |
<p>The present invention provides a method of producing porous spherical particles, which includes suspension polymerization of a multifunctional monomer having two or more vinyl groups and a vinyl monomer having one vinyl group in an aqueous medium in the presence of a porogen and a distribution stabilizer, wherein the distribution stabilizer is polyvinyl alcohol having a saponification degree of 75 to 85 mol%. According to the method of the present invention, generation of particle agglomerates and large particles can be suppressed and porous spherical particles having a desired average particle size and a narrow particle size distribution can be conveniently produced.</p> |
申请公布号 |
EP1602670(B1) |
申请公布日期 |
2008.12.31 |
申请号 |
EP20050104760 |
申请日期 |
2005.06.01 |
申请人 |
NITTO DENKO CORPORATION |
发明人 |
KONISHI, TATSUYA;MATSUMURA, TAKEO;MORI, KENJIRO |
分类号 |
C08F2/20;C08F12/00;C08F112/08;C08F112/36;C08F212/08;C08F212/36 |
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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