发明名称 |
Process for coating dispersed minute droplets with membrane |
摘要 |
Microcapsules containing water-insoluble liquid, of which wall membrane is urea-formaldehyde resin is produced by the addition of a water soluble organic acid, urea and formaldehyde to an emulsion of the liquid, which is made by a nonionic emulsifier and heating the emulsion to effect the polycondensation of urea and formaldehyde.
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申请公布号 |
US4303548(A) |
申请公布日期 |
1981.12.01 |
申请号 |
US19790052926 |
申请日期 |
1979.06.28 |
申请人 |
MITSUBISHI PAPER MILLS, LTD. |
发明人 |
SHIMAZAKI, TETSURO;KAMEI, SHUN |
分类号 |
B01J13/14;B01J13/18;B41M5/165;C08G12/12;(IPC1-7):B01J13/02 |
主分类号 |
B01J13/14 |
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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