Method of producing a thermosetting esterimide oligomer

Details Method of producing a thermosetting esterimide oligomer Method of producing a thermosetting esterimide oligomer

1994-03-08

1995-02-21

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528170, 528184, 528193, 528271, 528272, 528289, 528310, 528322, 528350, C08G 7316

Patent

active

053916972

ABSTRACT:
Thermosetting esterimide oligomers of formulas (IA) and (IB) are disclosed: ##STR1## where A.sub.1, A.sub.2 and A.sub.4 are divalent organic groups, A.sub.3 is a monovalent organic group and A.sub.1, A.sub.2, A.sub.3 and A.sub.4 may be the same or different, with m being an integer of 1-30. The above compounds provide hard substances having excellent workability, heat resistance and mechanical properties.

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Cannizzo et al., 15 Makromol. Chem., Suppl., pp. 85-91 (Jun. 1989).
Tanaka et al., "Synthesis of Polyamic Acids from Trimellitic Anhydride and Bisphenols with Diamines by a One-Pot Method", Proceedings of Third Int'l Conf. on Polyimides, pp. 65-68 (Nov. 2-4, 1988).

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