发明授权
- 专利标题： Production of water-dispersible polyurethanes having ionic groups and hydrophilic side chains
- 专利标题（中）： 生产具有离子基团和亲水侧链的水分散性聚氨酯
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申请号： US741818申请日： 1976-11-15
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公开(公告)号： US4092286A公开(公告)日： 1978-05-30
- 发明人: Klaus Noll , Jurgen Grammel , Walter Meckel
- 申请人： Klaus Noll , Jurgen Grammel , Walter Meckel
- 申请人地址： DT Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DT Leverkusen
- 优先权： DT2551094 19751114
- 主分类号： C08G18/00
- IPC分类号： C08G18/00 ; C08G18/08 ; C08G18/50 ; C08G18/83 ; C08L75/08 ; C08G18/77
摘要：
The present invention relates to water-dispersible polyurethane elastomers having a substantially linear molecular structure, characterized by(a) lateral polyalkylene oxide polyether chains having a content of ethylene oxide units of from about 0.5 to 10% by weight, based on the polyurethane as a whole and(b) a content of .dbd.N.sym..dbd., --COO.crclbar. or --SO.sub.3.crclbar. groups of from about 0.1 to 15 milliequivalents per 100 g,To aqueous dispersions of these water-dispersible polyurethane elastomers and to processes for producing these water-dispersible polyurethane elastomers.
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