发明授权
- 专利标题： Process for the dispersion of chain extender in polyol
- 专利标题（中）： 扩链剂在多元醇中的分散方法
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申请号： US438543申请日： 1982-11-01
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公开(公告)号： US4440664A公开(公告)日： 1984-04-03
- 发明人: Mark A. Pollock , Jimmie D. Fleenor
- 申请人： Mark A. Pollock , Jimmie D. Fleenor
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： C08G18/66
- IPC分类号： C08G18/66 ; C09K3/00 ; C08G18/10
摘要：
The present invention provides a process for preparing stable, uniform dispersions of chain extenders in polyurethane-forming polyol. The preferred chain extender is hydroquinone di(.beta.-hydroxyethyl)ether. The process comprises an adiabatic quenching step in combination with an annealing step. The inventive process avoids the need for slow, carefully controlled cooling schemes.
公开/授权文献
- US5051434A Insecticidally active nitro guanidine compounds 公开/授权日：1991-09-24