发明公开
EP0288823A1 Process for the preparation of polyisocyanate prepolymers and polyurethanes having high temperature performance and low hysteresis
失效
一种用于在具有高耐热性和低的滞后多异氰酸酯预聚物和聚氨酯的制备方法。
- 专利标题： Process for the preparation of polyisocyanate prepolymers and polyurethanes having high temperature performance and low hysteresis
- 专利标题（中）： 一种用于在具有高耐热性和低的滞后多异氰酸酯预聚物和聚氨酯的制备方法。
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申请号： EP88105894.5申请日： 1988-04-13
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公开(公告)号： EP0288823A1公开(公告)日： 1988-11-02
- 发明人: Starner, William E. , Casey, Jeremiah Patrick , Milligan, Barton , Clift, Susan Malin
- 申请人： AIR PRODUCTS AND CHEMICALS, INC.
- 申请人地址： Route no. 222 Trexlertown Pennsylvania 18087 US
- 专利权人： AIR PRODUCTS AND CHEMICALS, INC.
- 当前专利权人： AIR PRODUCTS AND CHEMICALS, INC.
- 当前专利权人地址： Route no. 222 Trexlertown Pennsylvania 18087 US
- 代理机构： Schwabe - Sandmair - Marx
- 优先权： US38810 19870415
- 主分类号： C08G18/76
- IPC分类号： C08G18/76 ; C08G18/10 ; C08G18/66
摘要：
This invention relates to a polyisocyanate prepolymer for polyurethane/urea elastomer synthesis and to the resulting elastomer. The prepolymer is formed by reacting toluenediisocyanate with a long chain polyol under conditions such that essentially a 2:1 adduct is formed. Excess toluenediisocyanate is removed prior to forming the elastomer.
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