Amine-containing block polymers for pigmented ink jet inks

Details Amine-containing block polymers for pigmented ink jet inks Amine-containing block polymers for pigmented ink jet inks

1992-02-20

1993-12-21

Michl, Paul R.

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...

524533, 524555, 524556, C08L 5300, C08L 3308, C08L 3310, C08L 3314

Patent

active

052722015

ABSTRACT:
An aqueous ink jet ink composition having improved dispersion stability comprises an aqueous carrier medium, a pigment having a pH value below 7.0, and an AB block polymer consisting of an A block comprising a hydrophobic polymer having at least one basic amine functional groups, and a B block comprising a hydrophilic polymer selected from the group consisting of nonionic polymers and polymers containing acidic functional groups.

REFERENCES:
patent: 4127422 (1978-11-01), Guzi, Jr. et al.
patent: 4464203 (1984-08-01), Belde et al.
patent: 5085698 (1992-02-01), Ma et al.
Quirk et al., "Functionalization of Polymethacrylates By Group Transfer Polymerization (GTP)", Polymer Preprints, Apr. 1992, pp. 978-979.

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