发明名称 |
Oxirane polyimide copolymers |
摘要 |
The copolymers disclosed herein comprise the reaction products of polyoxirane or polyepoxide compounds with amine-terminated aromatic polyimides. The reaction of the oxirane group with the amine group produces hydroxylamine groups which connect the polyimide portion with the polyepoxide precursor portion of the resultant copolymer without by-product formation. These copolymers are more tractable than the original unreacted amine-terminated polyimides and can be converted at appropriate lower temperatures to insoluble, infusible polymers. Thus they can be fabricated economically at lower temperatures and pressures and extend greatly the number of applications for which the aromatic polyimides can be employed.
|
申请公布号 |
US4277583(A) |
申请公布日期 |
1981.07.07 |
申请号 |
US19790099426 |
申请日期 |
1979.12.03 |
申请人 |
PLASTICS ENGINEERING COMPANY |
发明人 |
WAITKUS, PHILLIP A.;LEPESKA, BOHUMIR |
分类号 |
C08G59/40;C08G73/10;C08L63/00;C08L79/08;(IPC1-7):C08L63/00;C08L77/06 |
主分类号 |
C08G59/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|