S-triazine-imide copolymers

Details S-triazine-imide copolymers S-triazine-imide copolymers

1974-07-17

1976-05-18

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 302, 260 304N, 260 306R, 260 308R, 260 308DS, 260 322, 260 324, 260 326N, 260 338R, 260 78TF, 260 37N, 260 465E, 260248R, 260 49, 260 63N, 260248NS, 260 65, 260248CS, 2602495, 2602498, 260326R, 260326S, 260326N, 260326A, 428435, 428458, 428474, 428475, 428479, C08G 7308, C08G 7310

Patent

active

039577260

ABSTRACT:
Polyimides having a recurring unit ##SPC1##
Wherein R is an organic blocking group; A is NH, O or S; Z is the direct bond, O, S, SO.sub.2, ##EQU1## or CH.sub.2 ; n is 0 or 1; and R.sup.1 is a divalent organic radica are prepared by reacting a diamine with a s-triazine dianhydride. These polyimides can be fabricated into films, coatings, laminates and the like. The polyimides are also fusible and moldings thus obtained are low in void content.

REFERENCES:
patent: 3666723 (1972-05-01), Kray et al.
patent: 3803075 (1974-04-01), Kray et al.

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