Copolyester amides

Details Copolyester amides Copolyester amides

1994-08-11

1996-04-23

Seidleck, James J.

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

Synthetic resins

From carboxylic acid or derivative thereof

528271, 528272, 528292, C08G 6344

Patent

active

055104517

ABSTRACT:
The invention deals with copolyester amides built up from units derived from terephthalic acid, 1,4-butane-diol and 1,4-butane diamine.

REFERENCES:
patent: 2856385 (1958-10-01), Van Den Berghe et al.
patent: 2925405 (1960-02-01), Laakso et al.

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