Amide-urea copolymer and process for the preparation thereof

Details Amide-urea copolymer and process for the preparation thereof Amide-urea copolymer and process for the preparation thereof

1989-08-16

1992-02-18

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528310, 5283291, 528340, 528347, 528349, 528369, C08G 6926, C08G 7102

Patent

active

050896008

ABSTRACT:
Copolymers comprising amide units and urea units are prepared by melt phase interchange of diaryl esters of dicarboxylic acids with diamines and diesters of carbonic acid with diamines. The products are tough resins, useful per se as molding compounds, or in blends with other thermoplastic polymers.

REFERENCES:
patent: 2356702 (1944-08-01), Schlack
patent: 3534001 (1970-10-01), Bouboulis et al.
patent: 3960818 (1976-06-01), Spiewak
patent: 4567249 (1986-01-01), Fox et al.
patent: 4596866 (1986-06-01), Jackson, Jr. et al.
patent: 4876317 (1989-10-01), Blackmon et al.

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