Abstract: The present invention describes a pigment dispersion and a printing ink and coating employing the pigment dispersion. The pigment dispersion includes a pigment, binder and solvent. The pigment dispersion has a mean particle size less than about 120 nm. The printing ink or coating includes the pigment dispersion in addition to a solvent. The printing ink or coating has a solid binder to pigment ratio greater than about 1.5.

Abstract: Provided are methods for preparing a phthalocyanine pigment in high yield that eliminate the need to add a heavy metal catalyst. The resulting pigmentary phthalocyanine products thus contain no or only trace amounts of heavy metal impurities. The provided methods produce phthalocyanine pigments that can be used in any application that utilizes phthalocyanine pigments, such as in dispersions, printing inks, paints, plastics and coatings.

Abstract: A 6-Color Set of chromatic primary colors is disclosed containing a bordeaux and/or a yellow shade orange color but no magenta. A method of modifying the color gamut of a color application process is also presented.

Abstract: The present invention provides a reversible piezochromic system that changes appearance upon application of a mechanical force. The reversible piezochromic system includes a cavity defined by a first substrate and a second substrate. The cavity includes at least a first fluid. The first fluid spreads when a mechanical force is applied to the system. The relaxation time of the first fluid depends upon the internal forces of the system. These internal forces at least include the surface energy differences between the substrates and the fluid or fluids, and the rheological properties of the fluid or fluids.

Abstract: The present invention describes a pigment dispersion and a printing ink and coating employing the pigment dispersion. The pigment dispersion includes a pigment, binder and solvent. The pigment dispersion has a mean particle size less than about 120 nm. The printing ink or coating includes the pigment dispersion in addition to a solvent. The printing ink or coating has a solid binder to pigment ratio greater than about 1.5.

Abstract: Surface modified pigments, methods of their preparation, pigment dispersions containing the modified particles, and their application for electronic displays, color filters, liquid toners, inks, coatings, paints, cosmetics and plastics are provided.

Abstract: Provided are methods for preparing a phthalocyanine pigment in high yield that eliminate the need to add a heavy metal catalyst. The resulting pigmentary phthalocyanine products thus contain no or only trace amounts of heavy metal impurities. The provided methods produce phthalocyanine pigments that can be used in any application that utilizes phthalocyanine pigments, such as in dispersions, printing inks, paints, plastics and coatings.

Abstract: A paint comprising a latex base, organic pigment, and an aqueous solution resin solid with improved stability to atmospheric pollutants.

Abstract: A display pixel (10, 50). The pixel (10, 50) includes first and second substrates (12, 20, 60, 62) arranged to define a channel (16, 74). A fluid (26, 76) is located within the channel (12, 74) and includes a first colorant (36, 84) and a second colorant (38, 86). The first colorant (36, 84) has a first charge and color. The second colorant (38, 86) has a second charge that is opposite in polarity to the first change and a color that is complementary to the color of the first colorant (36, 84). A first electrode (22, 66), with a voltage source (32, 78), is operably coupled to the fluid (26, 76) and configured to moving one or both of the first and second colorants (36, 38, 84, 86) within the fluid (26, 76) and alter at least one spectral property of the pixel (10, 50).

Abstract: The present invention provides a reversible piezochromic system that changes appearance upon application of a mechanical force. The reversible piezochromic system includes a cavity defined by a first substrate and a second substrate. The cavity includes at least a first fluid. The first fluid spreads when a mechanical force is applied to the system. The relaxation time of the first fluid depends upon the internal forces of the system. These internal forces at least include the surface energy differences between the substrates and the fluid or fluids, and the rheological properties of the fluid or fluids.

Abstract: The present invention is a process for efficiently milling particles to a predetermined particle size and/or particle size distribution. The process includes feeding a fluid dispersion containing particles to be milled into a chamber. The process also includes contacting a fiber milling assembly in said chamber with said particles. Further, the process includes milling said particles for less than or equal to 40 minutes.

Abstract: The present invention describes a fiber based milling device for milling particles. The fiber based milling device includes a milling chamber with an inlet and an outlet, and also at least one fiber assembly. The fiber assembly contacts a particle to be milled in the milling chamber. Also disclosed is a method for milling particles by contacting the particles to be milled with a fiber assembly.

Abstract: A paint comprising a latex base, organic pigment, and an aqueous solution resin solid with improved stability to atmospheric l pollutants.

Abstract: A method is disclosed for measuring four factors contributing to transparency of a colored film, namely, Haze, Scatter, Gloss and Bronze values by utilizing a diffuse sphere spectrophotometer.

Abstract: A method is disclosed for measuring four factors contributing to transparency of a colored film, namely, Haze, Scatter, Gloss and Bronze values by utilizing a diffuse sphere spectrophotometer.

Abstract: A polymeric dispersant of the structure: wherein R1 is selected from the group consisting of H, CH3, and a combination thereof, and n is an integer from 4 to 200, for use in printing inks.

Abstract: A polymeric dispersant of the structure: wherein R1 is selected from the group consisting of H, CH3, and a combination thereof, and n is an integer from 4 to 200, for use in printing inks.

Abstract: Solvent-free, energy curable low viscosity gravure and non-conductive ink jet inks which contain a pigment; a rheological additive having the structure P—(U—Y)s, wherein P is the residue of an organic pigment or dye, Y is a polyalkylene oxide moiety, U is a linking moiety covalently bonding Y to P and s is an integer from 1 to 3; and an energy curable liquid vehicle which may be a cationic, thermal cationic or a free radical initiated polymerization system, cured by actinic radiation; and optionally containing a photoinitiating system.

Abstract: Solvent-free, energy curable low viscosity gravure and non-conductive ink jet inks which contain a pigment; a rheological additive having the structure P—(U—Y)s, wherein P is the residue of an organic pigment or dye, Y is a polyalkylene oxide moiety, U is a linking moiety covalently bonding Y to P and s is an integer from 1 to 3; and an energy curable liquid vehicle which may be a cationic, thermal cationic or a free radical initiated polymerization system, cured by actinic radiation; and optionally containing a photoinitiating system.

Abstract: A process for the preparation of &bgr; phase copper phthalocyanine pigment which includes dry grinding crude copper phthalocyanine in the absence of a grinding aid to obtain a crude mill; and conditioning the crude mill in about 5 to 50 wt. % based on the weight of the crude mill of a conditioning solvent.