发明名称 |
Process for the preparation of polyisocyanates with a biuret structure |
摘要 |
The present invention relates to an improved process for the continuous preparation of polyisocyanates with a biuret structure comprising the steps of continuously reacting excess amounts of organic diisocyanates having exclusively aliphatically and/or cycloaliphatically bound isocyanate groups with organic diamines having exclusively aliphatically and/or cycloaliphatically bound primary amino groups at temperatures above 170° C. and adding acid before or during the reaction.
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申请公布号 |
US2001056169(A1) |
申请公布日期 |
2001.12.27 |
申请号 |
US20010858057 |
申请日期 |
2001.05.15 |
申请人 |
HALPAAP REINHARD;MAGER DIETER;OECKL SIEGFRIED;MERTES HARALD |
发明人 |
HALPAAP REINHARD;MAGER DIETER;OECKL SIEGFRIED;MERTES HARALD |
分类号 |
C08G18/32;C07C273/18;C08G18/72;C08G18/78;(IPC1-7):C08G18/60;C08G18/28 |
主分类号 |
C08G18/32 |
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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