Polyester imides and method for producing same

Details Polyester imides and method for producing same Polyester imides and method for producing same

1986-07-22

1987-08-18

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

528292, 528296, C08G 6944, C08G 6908

Patent

active

046878343

ABSTRACT:
The invention relates to a method of producing polyester imides of the formula ##STR1## by reacting tetracarboxylic acid dianhydrides of the formula ##STR2## with N,N'-bis(.OMEGA.-hydroxyalkyl)dicarboxylic acid diamides of the formula, HO--Z--NH--CO--B--CO--NH--Z--OH, where

REFERENCES:
patent: 4390686 (1983-06-01), Janssen et al.
patent: 4552950 (1985-11-01), McCready
patent: 4556705 (1985-12-01), McCready

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