发明名称 |
Production process of microcapsules. |
摘要 |
<p>When obtaining microcapsules by covering a hydrophobic material with an aminoaldehyde polycondensation product as a wall-forming material in an acidic aqueous medium containing an anionic water-soluble polymer, a microcapsule slurry having a high solid content and low viscosity can be obtained by using as the anionic water-soluble polymer a multi-component copolymer consisting as essential monomer components thereof of at least three types of acrylic monomers selected respectively from (A) acrylic acid and/or methacrylic acid, (B) acrylonitrile and/or methacrylonitrile and (C) an acrylamidoalkylsulfonic acid and/or sulfoalkyl acrylate. Over a wide pH range, the microcapsule slurry obtained in accordance with this invention undergoes little viscosity changes and exhibits neither destruction of its dispersed state nor coagulating tendency. Resulting microcapsules have a sharp particle size distribution and are equipped with dense wall films.</p> |
申请公布号 |
EP0133295(A2) |
申请公布日期 |
1985.02.20 |
申请号 |
EP19840108857 |
申请日期 |
1984.07.26 |
申请人 |
MITSUI TOATSU CHEMICALS, INCORPORATED |
发明人 |
ASANO, MAKOTO;HASEGAWA, KIYOHARU;TAMURA, YUKIO;OONO, YOSHIHIRO |
分类号 |
B01J13/02;B01J13/18;B41M5/165;C08F2/44;(IPC1-7):B01J13/02;B41M5/00 |
主分类号 |
B01J13/02 |
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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