发明名称 |
Microcapsules and their preparation |
摘要 |
Microcapsules containing a color-former solution which is encapsulated in the form of a solution in an organic solvent in capsules of the polyaddition product of a diisocyanate corresponding to the following general formula: <IMAGE> (I) wherein n=3-6 and a diamine wherein a mixture of an alkyl naphthalene and an isoparaffin containing from 10 to 20 carbon atoms is used as the solvent for the color-former and the microcapsules are tempered for at least 2 hours at a temperature of from 60 DEG to 70 DEG C. after their formation.
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申请公布号 |
US4299723(A) |
申请公布日期 |
1981.11.10 |
申请号 |
US19800128928 |
申请日期 |
1980.03.10 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
DAHM, MANFRED;JABS, GERT;KOGLIN, BERND;SCHNOERING, HILDEGARD;RIECKE, KURT |
分类号 |
B01J13/16;B41M5/165;(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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