Dry water-dispersible pigment compositions

Details Dry water-dispersible pigment compositions Dry water-dispersible pigment compositions

1976-08-24

1977-11-01

Garvin, Patrick P.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106193J, 106193P, 106193D, C08L 126, C09C 308

Patent

active

040564029

ABSTRACT:
Dry, non-dusting pigment compositions which are water-dispersible and which develop good strength and color values upon stirring in water-borne industrial finish systems are described. The pigment compositions contain 55 to 80% pigment and, by weight of the pigment, from 15 to 45% of certain nonionic dispersing agents and from 10 to 67% of at least one water-soluble cellulose ether which is nonionic in nature and has a viscosity of less than 1000 cps. as measured on a 2% aqueous solution at 25.degree. C. The pigment compositions are preferably prepared by milling the pigment in water in the presence of the nonionic dispersing agent, mixing the milled pigment dispersion with the cellulose ether and then removing the water from the resulting mixture.

REFERENCES:
patent: 3093603 (1963-07-01), Gilchrist
patent: 3458804 (1969-07-01), Wolf et al.
patent: 3652313 (1972-03-01), Nagata et al.
patent: 3843380 (1974-10-01), Beyn
patent: 3844806 (1974-10-01), Wegmann et al.

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