发明名称 |
Process for the preparation of dihydroxypolyurethanes and the use thereof as adhesives or as raw materials for adhesives |
摘要 |
The instant invention is directed to a process for the preparation of dihydroxypolyurethanes containing carboxyl groups and chemically fixed ionic groups, comprising reacting (A) dihydroxypolyesters having molecular weights of from 600 to 8,000; (B) organic diisocyanates; (C) compounds containing carboxyl groups and groups having a higher isocyanate-reactivity than said carboxyl groups; and (D) compounds containing ionic groups and isocyanate-reactive groups wherein the products of said process contain from 0.01 to 1.0%, by weight of carboxyl groups and from 0.1 to 10 milliequivalents of ionic groups per 100 g of polyurethane.
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申请公布号 |
US4240861(A) |
申请公布日期 |
1980.12.23 |
申请号 |
US19790039702 |
申请日期 |
1979.05.17 |
申请人 |
BAYER AG |
发明人 |
DOLLHAUSEN, MANFRED;MECKEL, WALTER;MULLER-ALBRECHT, HORST;VELKER, EUGEN |
分类号 |
C08G18/00;C08G18/08;C08G18/65;C08G18/66;C09J175/00;C09J175/06;(IPC1-7):C08G18/34 |
主分类号 |
C08G18/00 |
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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