Readily processable polyimide, preparation process of polyimide,

Details Readily processable polyimide, preparation process of polyimide, Readily processable polyimide, preparation process of polyimide,

1991-11-21

1994-02-01

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528126, 528128, 528170, 528172, 528173, 528179, 528188, 528207, 528208, 528222, 528229, 528351, 528352, 528353, C08G 802, C08G 7310, C08G 6926

Patent

active

052833135

ABSTRACT:
A readily processable polyimide being blocked at the terminal of a polymer molecule with a divalent radical derived from dicarboxylic acid anhydride represented by the formula (IV): ##STR1## wherein Z is a divalent radical selected from the group consisting of a monoaromatic radical which is substantially unsubstituted or substituted with a radical having no reactivity with amine or carboxylic acid anhydride and has from 5 to 15 carbons atoms, condensed polyaromatic radical or noncondensed aromatic radical connected each other with a direct bond or a bridge member, and having a fundamental skeleton represented by recurring structural units of the formula (III): wherein X and Y are --O-- or --CO-- and differ each other; preparation process of the polyimide; and resin composition containing the polyimide and fibrous reinforcement.

REFERENCES:
patent: 3959350 (1976-05-01), Rogers
patent: 3998786 (1976-12-01), D'Alelio
J. Polymer Sci., Macromolecular Reviews, vol. 11, 161-208 (1976).
J. of Elastomers and Plastics, vol. 7, (Jul. 1975).
Polymer Engineering and Science, Nov., 1973, vol. 13, No. 6.
J. Polymer Sci., Polymer Chemistry Edition, vol. 14, 2275-2292 (1976).

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