Copolymers based on aliphatic polycarbonates and lactams

Details Copolymers based on aliphatic polycarbonates and lactams Copolymers based on aliphatic polycarbonates and lactams

1981-10-23

1983-03-22

Anderson, Harold D.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528129, 528203, 528211, 528323, 528327, 528328, 528369, C08G 6362, C08G 6916

Patent

active

043776701

ABSTRACT:
Anionic copolymers of lactams and aliphatic polycarbonates having urethane and carboxylic acid ester groups, preferably having recurring structural units of the formula:

REFERENCES:
patent: 2600953 (1952-06-01), Aelion
patent: 2786045 (1957-03-01), Chirtel et al.
patent: 3197441 (1965-07-01), Wehrmeister
patent: 3228759 (1966-01-01), Small et al.
patent: 3450793 (1969-06-01), Schnell et al.
patent: 3551388 (1970-12-01), Sippel et al.
patent: 3592873 (1971-07-01), Ishida et al.
patent: 3925325 (1975-12-01), Heimsch et al.
patent: 4208493 (1980-06-01), Deleens et al.
patent: 4265247 (1981-05-01), Lenz et al.

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