发明授权
- 专利标题： Water-soluble or water-dispersible polyurethanes with terminal acid groups, the production and the use thereof
- 专利标题（中）： 具有末端酸基的水溶性或水分散性聚氨酯，其生产和使用
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申请号： US09068009申请日： 1998-04-29
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公开(公告)号： US06365697B1公开(公告)日： 2002-04-02
- 发明人: Son Nguyen Kim , Karin Sperling
- 申请人： Son Nguyen Kim , Karin Sperling
- 优先权： DE19541326 19951106
- 主分类号： C08G1832
- IPC分类号： C08G1832
摘要：
The present invention relates to water-soluble or water-dispersible polyurethanes of a water-dispersible polyurethane prepolymer having terminal isocyanate groups and a primary or secondary amine having at least one ionogenic or ionic group, and to the salts thereof. The novel polyurethanes can be used as auxiliaries in cosmetology and pharmacy and, in particular, as hair lacquers having enhanced ease of washoff.
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