发明授权
- 专利标题： Aqueous solutions or dispersions of hydroxy-functional copolymers and a process for their production
- 专利标题（中）： 羟基官能共聚物的水溶液或分散体及其生产工艺
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申请号： US675388申请日： 1991-03-26
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公开(公告)号： US5134188A公开(公告)日： 1992-07-28
- 发明人: Harald Blum , Volker Schneider , Peter Hohlein
- 申请人： Harald Blum , Volker Schneider , Peter Hohlein
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX4010794 19900404
- 主分类号： C08F8/30
- IPC分类号： C08F8/30 ; C08F8/32 ; C08F8/44 ; C08F220/00 ; C08F220/04 ; C08F220/10 ; C08F222/00 ; C08F222/02 ; C08F222/38 ; C08F222/40
摘要：
The present invention relates to aqueous solutions or dispersions of hydroxy-functional copolymers containing imide structural units corresponding to the formula ##STR1## The present invention also relates to a process for the production of these aqueous solutions or dispersions of hydroxy-functional copolymers containing imide structural units by reacting anhydride-functional and optionally carboxyl-functional copolymers corresponding to the hydroxy-functional copolymers with aminoalcohols and optionally aminocarboxylic acids. In a further embodiment of the process the hydroxy-functional copolymers may be reacted with lactones resulting in ring opening and the formation of ester groups.
公开/授权文献
- US5691935A Memory element and method of operation thereof 公开/授权日：1997-11-25
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