Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1994-12-16
1996-11-19
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106493, 106496, 106 23K, C09B 6300
Patent
active
055758436
ABSTRACT:
A process for improving the color value of a pigment and for imparting stability to a water-based printing ink containing such pigment which comprises adding a polyester or polyether to the strike tank during the pigment conditioning step; the preferred polyether is methyl hydroxypropyl cellulose and the preferred polyester is benzoic acid-modified trimellitic anhydride polyester.
REFERENCES:
patent: 3778287 (1973-12-01), Stansfield et al.
patent: 4196016 (1980-04-01), Simon
patent: 5352281 (1994-10-01), Weide et al.
patent: 5366546 (1994-11-01), McCrae et al.
patent: 5380363 (1995-01-01), Coispeau et al.
Walter Kurtz-Organic Pigments for Printing Inks pp. 20-42, American Ink Maker Dec. 1986.
Gregorio Manuel Z.
Krishnan Ramasamy
Schwartz Russell J.
Yamat Marilyn C.
Bell Mark L.
Hertzog Scott L.
Matalon Jack
Sun Chemical Corporation
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