发明名称 |
Process for the solvent-free, continuous preparation of polyureas |
摘要 |
The invention relates to a process for the solvent-free, continuous preparation of polyureas by reacting at least one isocyanate and/or isocyanurate having at least two NCO groups with at least one diamine and/or polyamine in an extruder, intensive kneader, intensive mixer or static mixer by thorough mixing and rapid reaction by briefly heating and subsequent cooling to isolate the end product.
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申请公布号 |
US7129313(B2) |
申请公布日期 |
2006.10.31 |
申请号 |
US20020306215 |
申请日期 |
2002.11.29 |
申请人 |
DEGUSSA AG |
发明人 |
WEISS JOERN VOLKER;WEIHRAUCH THOMAS;GRENDA WERNER;HERDA SILVIA;BEHRENDT KLAUS |
分类号 |
C08G18/32;C08G18/08;C08G18/75;C08G18/79 |
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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