Sun Chemical Corporation

Manuel Z Gregorio

Russell J Schwartz

Paul Andrew Merchak

Anthony C Zwirgzdas

Ramasamy Krishnan

Marilyn C Yamat

Paul A Merchak

Orange azo fluorescent pigments and a process for a preparing same. Orange azo fluorescent pigments as a component of printing ink, coating, plastic compositions and articles of manufacture and used for controlling manufacturing operations.

Fluorescent orange azo pigments

Yellow azo fluorescent pigments and a process for a preparing same. Yellow azo fluorescent pigments as a component of printing ink, coating, plastic compositions and articles of manufacture and used for controlling manufacturing operations.

Fluorescent yellow azo pigments

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.

Process for improving color value of a pigment

Monoazo pigments are provided which have improved properties achieved by incorporating certain azomethine compounds. The pigment compositions are prepared by reacting a primary amine-terminated alkylene oxide polymer and an acetoacetanilide to form an azomethine coupler and subsequently preparing the monoazo pigment composition by reacting the desired diazo component and coupling component in the presence of the azomethine coupler so as to form an azomethine composition of matter and the desired pigment.

Monoazo pigment compositions

Water-based diarylide pigment compositions containing diarylide pigment modified with water-soluble amines. The pigment compositions are useful in both water-based coating and ink compositions.

Water-based diarylide pigment compositions

Diarylide pigments modified with alkylene oxide polymers. The modified pigments are useful in both water-based and solvent-based coating and ink compositions.

Diarylide pigment compositions

Disazo pyrazolone pigments are provided which have improved properties achieved by incorporating certain azomethine compounds. The pigment is prepared by reacting a primary amine terminated alkylene oxide polymer and acetoacetanilide or substituted acetoacetanilide to form an azomethine coupler, and subsequently co-reacting the azomethine coupler and a pyrazolone coupler with tetrazotized 3,3'-dichlorobenzidine or tetrazotized o-dianisidine. The pigment is useful in printing ink, plastics and paints.

Growing community of inventors

Cincinnati, OH, United States of America

Manuel Z Gregorio