Dispersing of pigments

Details Dispersing of pigments Dispersing of pigments

1978-11-20

1980-10-07

McCarthy, Helen M.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106262, 106300, 106304, 260 13, 260 18R, 568678, C09C 124, C09C 136, C09C 308, C09D 300

Patent

active

042266378

ABSTRACT:
Dispersion adjuvants are described comprising .beta.-hydroxyalkyl esters of the formula ##STR1## wherein the R.sub.1 and R.sub.2 represent hydrogen or alkyl with 1 to 21 carbon atoms, in which at least one of R.sub.1 and R.sub.2 is alkyl and the sum of the carbon atoms in R.sub.1 and R.sub.2 ranges from 6 to 22, and wherein R.sub.3 represents alkyl with 1 to 8 carbon atoms, optionally substituted with 1 to 2 hydroxyl groups and/or interrupted by 1 to 2 ether bridges, as well as the adducts of compounds of Formula I with alkylene oxides, preferably ethylene oxide and/or propylene oxide. The dispersion adjuvants are coated on pigment and filler materials for paints and lacquers. The coating is applied before or during the dispersion of the materials in the paint or lacquer media or vehicle.

REFERENCES:
patent: 2927863 (1960-03-01), Marotta et al.
patent: 3240819 (1966-03-01), Gaertner et al.
patent: 3242200 (1966-03-01), Johnson
patent: 3451835 (1969-06-01), Ganter et al.
patent: 3947287 (1976-03-01), Belde et al.
patent: 3954884 (1976-05-01), Kidwell
patent: 4019923 (1977-04-01), Mahe

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