发明授权
- 专利标题： Polyurethane-based thickeners
- 专利标题（中）： 聚氨酯增稠剂
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申请号： US240729申请日： 1994-05-10
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公开(公告)号： US5500475A公开(公告)日： 1996-03-19
- 发明人: Ulrich Eicken , Herbert Fischer , Wolfgang Gress , Rainer Hoefer , Doris Oberkobusch , Ludwig Schieferstein
- 申请人： Ulrich Eicken , Herbert Fischer , Wolfgang Gress , Rainer Hoefer , Doris Oberkobusch , Ludwig Schieferstein
- 申请人地址： DEX Duesseldorf
- 专利权人： Henkel Kommanditgesellschaft auf Aktien
- 当前专利权人： Henkel Kommanditgesellschaft auf Aktien
- 当前专利权人地址： DEX Duesseldorf
- 优先权： DEX4137247.6 19911113
- 主分类号： C08G18/08
- IPC分类号： C08G18/08 ; C08G18/00 ; C08G18/28 ; C08G18/48 ; C08G18/65 ; C08G18/66 ; C09D7/00 ; C09D7/12 ; C09D175/04 ; C09K3/00 ; C08J3/00 ; C08K3/20 ; C08L75/00
摘要：
Provided are thickeners based on an aqueous preparation of nonionic, water-dispersible or water-soluble polyurethanes, to their production and to their use. The nonionic, water-dispersible or water-soluble polyurethanes are obtainable by reaction of polyfunctional isocyanates with polyether polyols, monohydric alcohols and, if desired, polyhydric alcohols, wherein the monohydric alcohols contain at least one other polar group. Also provided is a process for the production of such thickeners. The thickeners are particularly suitable for thickening emulsion paints.