Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1997-10-02
1999-12-14
Merriam, Andrew E. C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
523200, 523222, 524612, 4273898, 4273855, 428375, 528208, 528353, 528362, B32B 2734, C08G 8300
Patent
active
060019263
ABSTRACT:
A fiber-reinforced phthalonitrile composite is made by impregnating or coating a fibrous material with a phthalonitrile prepolymer mixture containing a phthalonitrile monomer and an aromatic amine curing agent that is thermally stable and nonvolatile at a temperature up to about 375.degree. C., and that contains at least one electron withdrawing substituent effective to reduce the reactivity of the aromatic amine curing agent with the phthalonitrile monomer.
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Keller, T.M. and Price, T.R., "Amine-Cured Bisphenol-Linked Phthalonitrile esins", J. Macromol. Sci.-Chem., A18(6), pp. 931-937 (1982).
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Keller Teddy M.
Sastri Satya B.
McDonnell Thomas E.
Merriam Andrew E. C.
The United States of America as represented by the Secretary of
Webb Ralph T.
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