Amphipathic copolymer pigment dispersants

Details Amphipathic copolymer pigment dispersants Amphipathic copolymer pigment dispersants

1993-04-16

1994-09-20

Zitomer, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263171, 5263184, 52631842, 526329, 5263292, 526333, 526347, 526910, 526932, C08F22020

Patent

active

053490363

ABSTRACT:
An amphipathic co-polymer having a weight average molecular weight of from 2,500 to 20,000 inclusive and comprising an addition polymer backbone and at least one C.sub.1-4 alkoxy polyethylene or polyethylene copropylene glycol acrylate or methacrylate stabilizer unit where the backbone comprises up to 30% by weight of non-functional structural units and at least 70% by weight in total of stabilizer units and functional units where the functional units are optionally substituted styrene-containing units, hydroxy group-containing units and carboxyl group containing units, such that the proportions of hydroxy groups to carboxyl groups to styrene groups to propylene-oxy or ethylene-oxy groups are respectively 1 : 0.10-26.1; 0.28-25.0; 0.80-66.1.

REFERENCES:
patent: 4165418 (1979-08-01), Spearman
patent: 4170582 (1979-10-01), Mori
patent: 4211664 (1980-07-01), Dixon
patent: 4390658 (1983-06-01), Graetz

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