发明授权
US3840498A Film forming polyamide composition from fumaric acid and aromatic carbocyclic diisocyanate
失效
来自富马酸和芳香羧酸二异氰酸酯的聚酰胺成膜成膜
- 专利标题： Film forming polyamide composition from fumaric acid and aromatic carbocyclic diisocyanate
- 专利标题（中）： 来自富马酸和芳香羧酸二异氰酸酯的聚酰胺成膜成膜
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申请号： US23431672申请日： 1972-03-13
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公开(公告)号： US3840498A公开(公告)日： 1974-10-08
- 发明人: STEPHENS J
- 申请人： STANDARD OIL CO
- 专利权人： Standard Oil Co
- 当前专利权人： Standard Oil Co
- 优先权： US23431672 1972-03-13
- 主分类号： C08G18/67
- IPC分类号： C08G18/67 ; C08G69/26 ; C08G20/20
摘要：
1. A FILM FORMING POLYAMIDE CONSISTING ESSENTIALLY OF THE POLYMERIC CONDENSATION PRODUCT PREPARED BY REACTING AN AROMATIC CARBOCYCLIC DIISOCYANATE AND FUMARIC ACID IN AN INERT POLAR SOLVENT BOILING ABOVE 100*C, AT A TEMPERATURE OF ABOUT 50-240* C, WHILE MAINTAINING A MOLAR RATIO OF THE DIISOCYANATE TO FUMARIC ACID OF 1:1 TO 1.5:1.
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