Compositions: coating or plastic – Coating or plastic compositions – Fat – fatty oil – fatty oil acid or salt thereof containing
Patent
1972-03-07
1976-09-14
Lieberman, Allan
Compositions: coating or plastic
Coating or plastic compositions
Fat, fatty oil, fatty oil acid or salt thereof containing
106308Q, 106309, 260 22R, 260 24, 260 342, 260 37R, 260 40R, 260 4214, 260 42, 260 44, 2603145, C08J 320, C08L 9100, C08L 9300
Patent
active
039804887
ABSTRACT:
Colored organic solid particles of potential value as pigments are partially milled to an extent less than that required to develop full pigmentary strength by size reduction and further conditioned concurrently with a flushing step. The organic pigment particles are transferred from an aqueous dispersion to an organic hydrophobic vehicle in the presence of an organic breaching agent. The resulting flushed pigmented vehicle has pigmentary strength at least equal to that obtained by fully conditioning the crude particles without the breaching treatment. The conditioned pigments need not be recovered as a dry powdered product. The process is valuable in the manufacture of flushed phthalocyanines, quinacridones, etc., with substantial improvement in equipment utilization in milling. The flushed pigmented vehicles are useful in manufacture of paints, varnishes, lacquers, inks, color concentrates, and formulations for mass coloration of plastics.
REFERENCES:
patent: 2379678 (1945-07-01), Brown et al.
patent: 2857400 (1958-10-01), Cooper
patent: 3017414 (1962-01-01), Minnich et al.
patent: 3370065 (1968-02-01), Nold et al.
patent: 3615800 (1971-10-01), Spietschka et al.
McCormack, "Flushed Colors and Printing Inks," American Ink Maker, May, 1961, pp. 79, 80 and 118.
Barrington David W.
Bernstein Irwin B.
Rees Thomas C.
Wagener, Jr. Anthony P.
Lieberman Allan
Smith Richard G.
The Sherwin-Williams Company
Tura James V.
Wise Lowell G.
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