Sun Chemical Corporation

Other

Norman Wayne Smith

Terence R Chamberlain

Donald Thomas DeRussy

Russell J Schwartz

Paul Andrew Merchak

Terrence R Chamberlain

George McLaren

Kimberly A Clark

Barbara N Berg

Paul A Merchak

A colored fluid for use in a display device comprises at least one first pigment, at least one non-polar solvent, and at least one polymeric dispersant comprising the formula:(Z-U)-P-(V-W). P is a residue of a second pigment, which may be the same or different from the first pigment. Each Z is independently a non-polar polymer. Each U and V are various linking groups. Each W is independently selected from H, OH, SH, alkyl, aryl, alkylaryl, ammonium, alkylammonium, arylammonium, alkali metal, and alkaline earth metal. Each V-W bond is a covalent or ionic bond, x is an integer greater than or equal to 1, and y is an integer greater than or equal to 1, and wherein for the colored fluid, at least one polymeric dispersant comprises an ionic (V-W) moiety.

Colored fluids for display devices

Mono- and Bis-Azo/Hydrazone Pyrrole Pigments and Methods for preparing same.

Mono- and bis-hydrazone pigments

A process for preparing transparent Pigment Yellow 138 by grinding Pigment Yellow 138 in the presence of a grinding agent, preparing an aqueous slurry of the ground particles, and filtering the slurry resulting in a filter cake containing particles of transparent Pigment Yellow 138. In addition, a process for improving color strength of an ink and/or plastic composition is also disclosed by adding transparent Pigment Yellow 138 to the composition.

Preparation of yellow pigment

Mono-and bis-hydrazone pigments

A process for improving the heat stability of Pigment Violet 23 by conditioning crude Pigment Violet 23 in the presence of about 1 to 10 wt. % of Pigment Violet 23 by-products (1), (2) and (3).

Preparation of heat stable pigment violet 23

Growing community of inventors

Cincinnati, OH, United States of America

Norman Wayne Smith