Block copolymers of oxazolines and oxazines as pigment dispersan

Details Block copolymers of oxazolines and oxazines as pigment dispersan Block copolymers of oxazolines and oxazines as pigment dispersan

1997-11-04

1998-12-29

Szekely, Peter A.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523122, 524403, 524439, C08L 5300, C08K 308, C08K 316, C09D 1110

Patent

active

058543317

ABSTRACT:
Aqueous dispersions having improved stability and which are particularly well suited for use as aqueous ink jet ink compositions comprise an aqueous vehicle which comprises water or a mixture of water and an organic solvent; a particulate solid, preferably a pigment; and a polyoxazoline or polyoxazine dispersant selected from the group of AB, ABA, and BAB block copolymers wherein the A block is hydrophobic, and the B block is hydrophilic, and wherein the polymer as a whole has a solubility in the aqueous vehicle of at least 0.1 wt % at 25.degree. C.

REFERENCES:
patent: 5272201 (1993-12-01), Ma et al.
patent: 5519085 (1996-05-01), Ma et al.
patent: 5571850 (1996-11-01), Ma et al.

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