Copolymers of polyparabanic acids and polyamides

Details Copolymers of polyparabanic acids and polyamides Copolymers of polyparabanic acids and polyamides

1977-07-05

1978-06-06

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775R, 260 775C, C08G 1800

Patent

active

040936040

ABSTRACT:
Random copolymers of polyparabanic acids and polyamides are described. The copolymers are highly useful engineering thermoplastics which, unlike the corresponding polyparabanic acids alone, are readily moldable by extrusion, injection molding and like techniques. The copolymers are readily prepared by a one-shot reaction of (i) bis(alkoxyoxalyl)amides of aliphatic, araliphatic or aromatic diamines, (ii) aromatic or aliphatic dicarboxylic acids, and (iii) organic diisocyanates.

REFERENCES:
patent: 3661859 (1972-05-01), Patton
patent: 3684773 (1972-08-01), Patton
patent: 3734896 (1973-05-01), Patton
patent: 3936584 (1976-02-01), Patton
patent: 3969290 (1976-07-01), Kraft et al.

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