发明授权
- 专利标题： Polyurethane
- 专利标题（中）： 聚氨酯
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申请号： US351578申请日： 1982-02-23
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公开(公告)号： US4447591A公开(公告)日： 1984-05-08
- 发明人: Shoji Watanabe , Takuya Miho
- 申请人： Shoji Watanabe , Takuya Miho
- 申请人地址： JPX Sakai
- 专利权人： Daicel Chemical Industries, Ltd.
- 当前专利权人： Daicel Chemical Industries, Ltd.
- 当前专利权人地址： JPX Sakai
- 优先权： JPX56-69077 19810508
- 主分类号： C08G18/00
- IPC分类号： C08G18/00 ; C08G18/42 ; C08G63/08 ; C08G63/10
摘要：
A polyurethane comprises (a) organic diisocyanate units and (b) polycaprolactone polyol units having a narrow molecular weight distribution in which a ratio of the weight average molecular weight to the number average molecular weight is in the range of from 1.1 to 2.0 and the average molecular weight is 500 to 5,000, the units (a) and (b) being connected linearly through urethane linkages.