Claims
- 1. A thermally stable resin of the general formula ##STR5## wherein Ar is a divalent aromatic moiety, n is an integer in the range of 1 to 3, and R is --H, --O--C.sub.6 H.sub.5, --O--C.sub.6 H.sub.5 or --O--C.sub.6 H.sub.4 --SO.sub.2 --C.sub.2 H.sub.5.
- 2. The resin of claim 1 wherein Ar is selected from the group consisting of ##STR6## wherein Y is --SO.sub.2 --, --C(CH.sub.3).sub.2 --, --C(CF.sub.3).sub.2 -- --S--, --O-- or --CO--.
- 3. The resin of claim 2 which is the cured product of 1,3-bis-m-(phenyl-ethynyl)phenoxy benzene.
- 4. The resin of claim 2 which is the cured product of 4,4'-bis-3-(phenyl-ethynyl)phenoxy diphenylsulfone.
- 5. The resin of claim 2 which is the cured product of 2,2-bis[([([3-phenoxy]-3-phenoxy)-3-phenylethynyl]-3-phenoxy)-4-phenyl]-propane.
- 6. The resin of claim 2 which is the cured product of 2,2-bis[([([3-phenoxy]-3-phenoxy)-3-phenylethynyl]-3-phenoxy)-4-phenyl]-hexafluoropropane.
RIGHTS OF THE GOVERNMENT
The invention described herein may be manufactured and used by or for the Government of the United States for all governmental purposes without the payment of any royalty.
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Arnold et al. |
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4356325 |
Harrison et al. |
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Reinhardt et al. |
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|