发明名称 |
LINEAR POLYURETHANE ELASTOMER COMPOSITIONS AND USE OF MODIFIED DIISOCYANATES FOR PREPARING SAME |
摘要 |
Linear polyurethane elastomers of a polyol component, at least two extender components, and a diisocyanate compound are prepared by reacting the diisocyanate compound with one of the extender components to form a modified diisocyanate component having a functionality of about 2 prior to reacting this modified component with the other components of the elastomer. A preferred polyol component includes a mixture of a polycarbonate polyol and a polyether polyol. These new elastomers possess a unique combination of hydrolytic stability, toughners, and flexibility and can be processed at lower temperatures compared to elastomers prepared from similar compositions wherein the isocyanate compound is not modified.
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申请公布号 |
CA2047678(A1) |
申请公布日期 |
1990.09.21 |
申请号 |
CA19902047678 |
申请日期 |
1990.03.19 |
申请人 |
REEVES BROTHERS, INC. |
发明人 |
ROSS, BERT A.;DAMEWOOD, JOHN R. |
分类号 |
C08G18/10;C08G18/12;C08G18/40;C08G18/65;C08G18/66;C08G18/76;C08G18/80;(IPC1-7):C08G18/12;C08G18/44;C08G18/48 |
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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