Claims
- 1. An --NH-- crosslinked diamine-bismaleimide polymer having two moles of diamine per mole of bismaleimide in recurring structural units of the formula: ##STR8## wherein X and Y are divalent radicals capable of linking two benzene rings and n is, independently in each case, an integer of 0 or 1.
- 2. The polymer of claim 1 in which X is --CH.sub.2 -- and n is 1.
- 3. The polymer of claim 2 in which Y is --O--.
- 4. The polymer of claim 2 in which Y is --CH.sub.2 --.
- 5. The polymer of claim 1 in which X and Y are --CO-- and n is 1.
- 6. An aspartimide crosslinked thermally cured resinous polymer product consisting essentially of a homopolymer of a compound having the formula: ##STR9## wherein X and Y are divalent radicals capable of linking two benzene rings and n is, independently in each case, an integer of 0 or 1 and wherein during thermal cure, the terminal NH.sub.2 groups react with and open the internal ##STR10## groups to form the aspartimide crosslinks.
Parent Case Info
This application is a continuation of application Ser. No. 561,702, filed Dec. 15, 1983, now abandoned.
ORIGIN OF THE INVENTION
The invention described herein was made in the performance of work under a NASA contract and is subject to the provisions of Section 305 of the National Aeronautics and Space Act of 1958, Public Law 85-568 (72 Stat. 435; 42 U.S.C. 2457).
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3740378 |
Crivello |
Jun 1973 |
|
3998904 |
Balme et al. |
Dec 1976 |
|
Non-Patent Literature Citations (2)
Entry |
Kumar et al., High Temperature Resins Based on Aromatic Amine-Terminated Bisaspartimides. |
Kumar et al., Matrix Resins Based on Aromatic Amine-Terminated Bisaspartimides. |
Continuations (1)
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Number |
Date |
Country |
Parent |
561702 |
Dec 1983 |
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