Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1994-01-25
1995-09-26
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106495, 106493, 546 56, C09B 4800
Patent
active
054531519
ABSTRACT:
This invention relates to a resinated 2,9-dimethylquinacridone pigment, which is prepared by a process comprising (a) preparing an aqueous suspension containing a 2,9-dimethylquinacridone pigment, a mixture of water-soluble acid salts and a particle growth inhibitor, wherein the mixture of water-soluble acid salts consists essentially of from about 50 to about 95 parts by weight of a water-soluble resin acid salt, and from about 5 to about 50 parts by weight of a water-soluble salt of a napthenic acid or a dimeric acid, or a mixture thereof, (b) precipitating the mixture of acid salts from the suspension in the form of insoluble salts and (c) isolating the resinated 2,9-dimethylquinacfidone pigment from the suspension. The resinated 2,9-dimethylquinacridone pigment possesses excellent dispersability, color strength, saturation and heat stability. It is especially useful for coloring plastics, coatings and inks.
REFERENCES:
patent: 4369272 (1983-01-01), Jaffe
patent: 4439240 (1984-03-01), Ganci
patent: 4478968 (1984-10-01), Jaffe
patent: 4548968 (1985-10-01), Jaffe
patent: 5194088 (1993-03-01), Babler et al.
Merkle et al. "Surface Treatment of Organic Pigments" in vol. III of Pigment Handbook, pp. 159-160, ed. by Patton, John Wiley & Sons, 1973, TP 936 P38p vol. 3.
Bell Mark L.
Ciba-Geigy Corporation
Dohmann George R.
Hertzog Scott L.
LandOfFree
Resinated 2,9-dimethylquinacridone does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resinated 2,9-dimethylquinacridone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resinated 2,9-dimethylquinacridone will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1550351