发明申请
US20040127674A1 Polymeric urea-urethane rheology control agents and a process for their preparation
有权
聚合脲 - 氨基甲酸酯流变控制剂及其制备方法
- 专利标题： Polymeric urea-urethane rheology control agents and a process for their preparation
- 专利标题（中）： 聚合脲 - 氨基甲酸酯流变控制剂及其制备方法
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申请号： US10659588申请日： 2003-09-09
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公开(公告)号： US20040127674A1公开(公告)日： 2004-07-01
- 发明人: Karlheinz Haubennestel , Stefan Moessmer , Sascha Huebers , Baerbel Gertzen , Holger Heilmann
- 优先权： DEDE10241853.5 20020909
- 主分类号： C08G018/10
- IPC分类号： C08G018/10 ; C08G018/32 ; C08G018/38 ; C08G018/60
摘要：
The invention relates to a polymeric urea-urethane obtainable by first reacting a diisocyanate with a polyol to form a doubly NCO-terminated urethane prepolymer. Further reaction is subsequently carried out with a mixture of a primary monoamine and a primary diamine. After the second reaction the polymeric urea-urethane present is substantially free of isocyanate and of the monoamine and diamine used. It can be used as an agent for controlling the rheology of liquid polymers or polymer solutions.
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