Curing phthalonitrile resins with acid and amine

Details Curing phthalonitrile resins with acid and amine Curing phthalonitrile resins with acid and amine

1992-01-09

1993-08-17

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528171, 528172, 528173, 528183, 528188, 528206, 528207, 528208, 528337, 528352, 528353, C08G 7300

Patent

active

052370453

ABSTRACT:
Polymerization or cure of di-phthalonitrile monomers or prepolymers by a curing agent selected from (a) an acid and an amine, (b) a salt of an acid and an amine, and (c) mixtures of (a) and (b). In a preferred embodiment, the curing agents are amine salts which are reaction products of an aromatic amine and an aromatic sulfonic acid. The use of the novel curing agents enhances curing rates and results in polymers which have high Tg.

REFERENCES:
patent: 4408035 (1983-10-01), Keller
patent: 4410676 (1983-10-01), Keller
U.S. patent application entitled "Curing Phthalonitriles With Acid" of T. ller, Ser. No. 07-818,672, filed Jan. 9, 1992.

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