Process of casting polyparabanic acid films from stabilized orga

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ

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521 61, 521 64, 521179, 260 302, 260 306R, 260 326NT, 260 326NR, 260 326NA, 260 457S, 260 459E, 260 4585H, 260 4585R, 260 4595C, 260 4595G, 260 4585A, 260 4585H, B29D 2700, B32B 314

Patent

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042947855

ABSTRACT:
Organic amides, solutions of polymers thereof, which polymers are subject to hydrolysis and degradation in the presence of amines, and polymers isolated therefrom are stabilized by the presence of aromatic sulfonic acid esters of aliphatic, arylaliphatic and alicyclic alcohols and polyols.

REFERENCES:
patent: 4201820 (1980-05-01), Johnson

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