Pigment dispersing agent and its use

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...

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524 88, 524190, 526204, 526217, 5262181, 526219, 526259, 106 22K, 106 23K, C08L 3300, C08K 523, C08K 534, C08F 404

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active

054201870

ABSTRACT:
A pigment-dispersing agent obtained by polymerizing an addition-polymerizable monomer having an acidic functional group and other addition-polymerizable monomer in the presence of a polymerization initiator, the polymerization initiator being a diazotization product prepared by diazotizing at least one compound selected from the group consisting of an anthraquinone derivative having an aromatic amino group, an acridone derivative having an aromatic amino group and an organic dyestuff having an aromatic amino group. The above pigment-dispersing agent provides a water-based pigment dispersion which forms a water-based coating composition or water-based ink having excellent gloss, excellent clearness and high tinting strength, and the gloss, clearness and tinting strength of the water-based coating composition are comparable to those of existing oil coating compositions.

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patent: 4412349 (1983-11-01), Dimroth et al.
patent: 4563519 (1986-01-01), Dimorth et al.
patent: 4883714 (1989-11-01), Stockl et al.
patent: 5244496 (1993-09-01), Easton et al.
English abstract of SU 179926; Russ; Intrinscially coloured polyacrylonitrile using; Publication date unknown; see WPI Accession No. 68-78705 P/00.

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