Use of comb-branched copolymers as pigment dispersants
AssigneeArco Chemical Technology, L.P.
InventorSteven A. Schwartz
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Abstract
A pigment dispersion suitable for use in the manufacture of pigmented coating compositions is provided. The pigment dispersion comprises a) pigment, b) carrier, and c) an acrylic/polyether comb-branched copolymer dispersant wherein the polyether portion of the copolymer is free of any acidic groups. A method of making a present dispersion is also provided. The method comprises mixing together, in any combination: a) pigment, b) carrier, and c) an acrylic/polyether comb-branched copolymer dispersant wherein the polyether portion of the copolymer is free of any acidic groups. A pigmented coating composition is also provided comprising a pigment dispersion made in accordance with present invention.
Claims24
A pigment dispersion comprising:
- a) pigment;
- b) carrier;
- and
- c) an acrylic/polyether comb-branched copolymer dispersant wherein the polyether portion is free of any acidic groups.
A method of making a pigment dispersion suitable for use in the manufacture of pigmented compositions, said method comprising mixing together, in any combination:
- a) pigment;
- b) carrier;
- and
- c) an acrylic/polyether comb-branched copolymer dispersant wherein the polyether portion is free of any acidic groups.
Dependencies are inferred from the claim text.