发明名称 |
Process for the preparation of polyisocyanate prepolymers and polyurethanes having high temperature performance and low hysteresis. |
摘要 |
<p>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.</p> |
申请公布号 |
EP0288823(A1) |
申请公布日期 |
1988.11.02 |
申请号 |
EP19880105894 |
申请日期 |
1988.04.13 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
STARNER, WILLIAM E.;CASEY, JEREMIAH PATRICK;MILLIGAN, BARTON;CLIFT, SUSAN MALIN |
分类号 |
C08G18/10;C08G18/65;C08G18/76;(IPC1-7):C08G18/76;C08G18/66 |
主分类号 |
C08G18/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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