发明名称 |
Process for preparing polyurea and polyurea/polyurethane polymers. |
摘要 |
<p>The invention relates to a process for producing a polyurea or polyurea/polyurethane compound by reaction of an organic polyisocyanate with a diamine chain extender and an isocyanate-reactive polymer, the latter consisting at least in part, in a polymeric polyamine having a molecular weight of from 1000 to 16000, containing from 2 to 4 primary amino groups per molecule, and being the condensation product of a polycarboxylic acid or ester with a stoichiometric excess of a polyamine having terminal propoxy groups and a molecular weight of from 500 to 5000.</p> |
申请公布号 |
EP0242974(A1) |
申请公布日期 |
1987.10.28 |
申请号 |
EP19870302220 |
申请日期 |
1987.03.16 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BENTLEY, JAMES MARTIN;BROWN, JAMES PETER;FRIJNS, GUY;SPARROW, DAVID JOHN |
分类号 |
C08G18/65;C08G18/46;C08G18/50;C08G18/60;C08G69/40;(IPC1-7):C08G18/65 |
主分类号 |
C08G18/65 |
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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