Fiber-reinforced phthalonitrile composite cured with low-reactiv

Details Fiber-reinforced phthalonitrile composite cured with low-reactiv Fiber-reinforced phthalonitrile composite cured with low-reactiv

1997-10-02

1999-07-13

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

059228075

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).
Sastri et al, "Phthalonitrile-Carbon Fiber Composites" Polymer Composites, Dec. 1996, vol. 17, No. 6, pp. 816-822.
Sastri et al "Phthalonitrile-Glass Fabric Composites", Polymer Composites, Feb. 1997, vol. 18, No. 1, pp. 48-54.

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