Block copolymer from carboxy terminated polyamide and polyol

Details Block copolymer from carboxy terminated polyamide and polyol Block copolymer from carboxy terminated polyamide and polyol

1990-11-16

1992-06-23

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...

528292, 528332, 528335, 562509, C08G 6934

Patent

active

051244128

ABSTRACT:
A carboxy acid-terminated polyamide is reacted with an alkylene glycol, a polyalkylene glycol, nitrogen base or an alkanol amine (followed by an alkanoic acid) to provide a block copolymer. These block copolymers are especially useful as pigment dispersants, i.e. for preparing solvent-based packaging inks (i.e. packaging gravure and flexographic inks).

REFERENCES:
patent: 2997462 (1961-08-01), Wulff et al.
patent: 4208493 (1980-06-01), Deleens et al.
patent: 4350535 (1982-09-01), Ishijima et al.
patent: 4704165 (1987-11-01), Nakamura et al.
patent: 4873311 (1989-10-01), Bornack et al.

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