发明授权
US5932652A Aqueous polyurethane/urea dispersions containing alkoxysilane groups
失效
含有烷氧基硅烷基团的水性聚氨酯/尿素分散体
- 专利标题： Aqueous polyurethane/urea dispersions containing alkoxysilane groups
- 专利标题（中）： 含有烷氧基硅烷基团的水性聚氨酯/尿素分散体
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申请号： US992163申请日： 1997-12-17
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公开(公告)号： US5932652A公开(公告)日： 1999-08-03
- 发明人: Richard R. Roesler , Lutz Schmalstieg , Lyuba K. Gindin
- 申请人： Richard R. Roesler , Lutz Schmalstieg , Lyuba K. Gindin
- 申请人地址： PA Pittsburgh DEX Leverkusen
- 专利权人： Bayer Corporation,Bayer Aktiengesellschaft
- 当前专利权人： Bayer Corporation,Bayer Aktiengesellschaft
- 当前专利权人地址： PA Pittsburgh DEX Leverkusen
- 主分类号： C08L75/00
- IPC分类号： C08L75/00 ; C08G18/00 ; C08G18/08 ; C08G18/12 ; C08G18/28 ; C08G18/38 ; C08G18/83 ; C09D175/00 ; C09D175/04 ; C08J3/00 ; C08K3/20 ; C08L83/00
摘要：
The present invention relates to aqueous polyurethane/urea dispersions wherein the polyurethane/ureas contain 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28), which have been incorporated by the reaction of isocyanate groups with compounds containing alkoxysilane groups and aspartate groups.The present invention also relates to a process for preparing these aqueous polyurethane/urea dispersions and to coatings prepared from these aqueous polyurethane/urea dispersions.
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