Hydrophobic treatment of pigments

Details Hydrophobic treatment of pigments Hydrophobic treatment of pigments

1996-05-24

1999-07-13

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

10628713, 106444, 106445, 106449, 106471, 106493, C09C 308

Patent

active

059221216

ABSTRACT:
A surface derivatizing agent is allowed to contact an aqueous slurry of transition metal-containing pigment particles to increase the hydrophobicity of the surface of such particles. The modified pigment particles disperse easily in a wide variety of organic solvents, and provide stable, dispersions having a small mean pigment particle size and narrow particle size distribution.

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patent: 5501732 (1996-03-01), Niedenzu et al.
Hyperdispersants, Schofield, J.D., Surface Coatings Institute (JOCCA), 74(6), pp. 204, 206-210, Jun. 1991.
A Model for Organic pigments in Oil or Water-Based Printing Inks, Hays, B.G., Am. Ink Maker, v. 64, pp. 13-21, Oct. 1996.
Hawley's Condensed Chemical Dictionary, 11th ed., "nonylphenol"; "lecithin", Van Nostrand, NY, pp. 694 and 838, Dec. 1987.
PCT Search Report, Dec. 10, 1996, (GB 96/02415).

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