发明名称 |
Process for preparation of monodisperse polymer particles having increased particle size |
摘要 |
In a dispersion system comprising seed polymer particles and a monomer, the solubility of the monomer is reduced by such means as addition of water, whereby the monomer is precipitated and absorbed in the seed polymer particles, and in this state, the monomer absorbed in the seed polymer particles is selectively polymerized. Namely, according to the present invention, the decrease of the solubility of the monomer in the dispersion system is utilized for absorption of the monomer in the seed polymer particles, and polymer particles having an increased particle size can be prepared in a short time at a high efficiency.
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申请公布号 |
US4996265(A) |
申请公布日期 |
1991.02.26 |
申请号 |
US19890301103 |
申请日期 |
1989.01.25 |
申请人 |
MITA INDUSTRIAL CO., LTD. |
发明人 |
OKUBO, MASAYOSHI;TSUJIHIRO, MASAMI |
分类号 |
C08F2/04;C08F2/00;C08F2/12;C08F2/18;C08F291/00;G09F9/00 |
主分类号 |
C08F2/04 |
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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