发明名称 |
Production of microcapsules having walls of polyaddition products of water-insoluble polyamines with water-soluble polyisocyanate adducts |
摘要 |
Microcapsules having a hydrophobic core material and capsule walls formed by the reaction of water-insoluble polyamines with water-soluble bisulphite adducts of polyisocyanates, a process for the production thereof which is characterized in that a mixture of a hydrophobic core material and water-insoluble polyamines is emulsified in water or in an aqueous protective colloid solution to the required particle size, water-soluble bisulphite adducts of polyisocyanates in the form of powders or aqueous solutions are added and the mixture is left to react to completion at temperatures of from 1 DEG to 140 DEG C., and applications thereof.
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申请公布号 |
US4517141(A) |
申请公布日期 |
1985.05.14 |
申请号 |
US19830506451 |
申请日期 |
1983.06.21 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
DAHM, MANFRED;WEIMANN, NORBERT;NEHEN, ULRICH;MUELLER, HANNS P.;JABS, GERT;AWATER, ALBERT;BARNES, JAMES M. |
分类号 |
B01J13/16;B41M5/165;C08G18/32;C08G18/80;(IPC1-7):B01J13/02 |
主分类号 |
B01J13/16 |
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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