Compositions containing fungal pigments and methods for making the compositions are described, as are methods of staining, painting or dyeing objects with such compositions.

The invention concerns a pigmentary preparation having universality of use in tinting plastics.

The present invention relates to a water-based pigment dispersion containing a polymer dispersant and a pigment, the polymer dispersant being prepared by crosslinking a carboxy group-containing water-insoluble polymer (A) with a water-insoluble polyfunctional epoxy compound, in which carboxy groups of the water-insoluble polymer (A) are at least partially neutralized by an alkali metal compound, and the water-based pigment dispersion satisfies the following conditions 1 to 3. The water-based pigment dispersion of the present invention can exhibit excellent redispersibility capable of suppressing solidification of the pigment or the polymer in ink ejection nozzles and can ensure good storage stability under high-temperature conditions. The conditions 1 to 3 are as follows: Condition 1: a value calculated according to the formula: {[100(neutralization degree)(crosslinking degree)]/100}[acid value of water-insoluble polymer (A)] is from 30 to 30 mgKOH/g: Condition 2: a value calculated according to the formula: [(neutralization degree)/100][acid value of water-insoluble polymer (A)] is from 80 to 180 mgKOH/g; and Condition 3: a value calculated according to the formula: [(crosslinking degree)/100][acid value of water-insoluble polymer (A)] is from 80 to 180 mgKOH/g.

The method prepares an aqueous pigment dispersion. The method includes the following steps: providing a silica liquid including a hydrophilic fumed silica, potassium hydroxide and ion exchanged water; providing a styrene-acrylic acid copolymer obtained by copolymerizing monomers including a styrene monomer at an amount of 50 to 90 mass %; providing an aqueous medium; mixing a pigment with the styrene-acrylic acid copolymer and the aqueous medium to prepare a first mixture; and subsequently mixing the first mixture with the silica liquid to prepare the aqueous pigment dispersion.

Provided is a pigment dispersion liquid used in a curable composition capable of manufacturing a film having fewer foreign matters. Provided are a curable composition capable of manufacturing a film having fewer foreign matters, a film, a near infrared cut filter, a solid-state imaging element, an image display device, and an infrared sensor. The pigment dispersion liquid includes a near infrared absorbing organic pigment having an maximum absorption wavelength in a wavelength range of 600 to 1,200 nm; two or more kinds of pigment derivatives having different structures; and a solvent.

Disclosed herein is a coating composition including a pigment paste, where the pigment paste includes an organic pigment and an aryl-modified branched reaction product (P), including, in reacted form, a polyhydroxy-functional core moiety (a), and a shell moiety (b) including polyalkylene oxide units and aromatic units, where the polyalkylene oxide units and aromatic units are covalently linked to the core moiety via units including functional groups being reactive with hydroxy groups. Further disclosed herein is a method of producing a cured coating on a substrate by using the coating composition.

A method for increasing a detection distance of a surface of an object illuminated by near-IR electromagnetic radiation, including: (a) directing near-IR electromagnetic radiation from a near-IR electromagnetic radiation source towards an object at least partially coated with a near-IR reflective coating that increases a near-IR electromagnetic radiation detection distance by at least 15% as measured at a wavelength in a near-IR range as compared to the same object coated with a color matched coating which absorbs more of the same near-IR radiation, where the color matched coating has a ?E color matched value of 1.5 or less when compared to the near-IR reflective coating; and (b) detecting reflected near-IR electromagnetic radiation reflected from the near-IR reflective coating. A system for detecting proximity of vehicles is also disclosed.

The present invention relates to a pigment water dispersion containing pigment-containing water-insoluble crosslinked polymer A particles, a water-soluble basic compound and water, in which a water-insoluble crosslinked polymer A constituting the particles has a carboxy group and a crosslinked structure containing an ester group derived from a water-insoluble crosslinking agent, a saponification value of the water-insoluble crosslinked polymer A is from 170 to 300 mgKOH/g, and the water-soluble basic compound contains a water-soluble amine compound; a process for producing the pigment water dispersion; a water-based ink for ink-jet printing which contains the pigment water dispersion; and an ink-jet printing method using the water-based ink.

A solid colorant including a. 30-97 wt % of a pigment, b. less than 5 wt % of a solvent c. 3-40 wt % surfactants and wherein: the ratio S/A [Std dev of the particle size distribution/average particle size] of the solid colorant is <25%, preferably <22% and more preferably <20%, wherein wt % is relative to the total weight of the solid colorant, and wherein the particle size distribution is determined with light scattering with fully automated image analysis according to ISO 13322-1 Static image analysis First edition 2004 Dec. 1 by the use of the OCCHIO ZEPHYR ESR analyzer. A process for making the solid colorant, and the use of the solid colorant for tinting base paints by volumetric dosing of the solid colorant to the base paint.

A method for preparing a dispersion of nanoparticles of a solid organic dye or pigment in a liquid carrier, and dispersions formed by such a method. The method includes continuously mixing: at least one solution or slurry containing a reactant precursor for the solid organic dye or pigment in an organic or other solvent with the liquid carrier in a counter current mixing reactor to obtain reaction of the reactant precursor and formation of the solid organic dye or pigment as a dispersion of nanoparticles in the liquid carrier and solvent mixture; optionally, removing unreacted reactant precursor and/or by-product from the dispersion when present; and optionally, concentrating the dispersion.