The present invention relates to a colorant, a colored resin composition comprising the colorant, and a color filter prepared using the colored resin composition. A novel reddish yellow pigment may be used in combination with a green pigment and a yellow pigment in order to reduce the imbalance of the intramolecular polarization of the green pigment and/or the yellow pigment in the colorant. As a result, a color filter comprising a colored layer in which a light leakage phenomenon, caused by an electric field distortion, is reduced.

A photosensitive resin composition, a photosensitive resin layer, and a color filter, the composition including a colorant including a first green dye having a core-shell structure and a second green dye in a weight ratio of about 1:9 to about 7:3; a binder resin; a photopolymerizable compound; a photopolymerization initiator; and a solvent.

The present application relates to novel whitening agents for cellulosic substrates. The whitening agents are comprised of at least two constituents: at least one chromophore constituent and at least one polymeric constituent. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to light, or they may absorb light to reflect these same shades. The whitening agents are further characterized by the polymeric component comprising at least two repeating glycerol units. This disclosure also relates to laundry care compositions including but not limited to liquid and/or powder laundry detergent formulations and rinse added fabric softening (RAFS) compositions that comprise such whitening agents.

The present invention relates to a color converter comprising a polymeric matrix material comprising at least one 2,5-furandicarboxylate polyester and at least one luminescent material and to the use of said color converter. The present invention also relates to a polymer mixture comprising at least one 2,5-furandicarboxylate polyester and at least one luminescent material, to a lighting device comprising at least one LED and said color converter and to a device producing electric power upon illumination comprising photovoltaic cell and said color converter.

Provided are a curable composition, a cured film, an optical filter, a solid image pickup element, an image display device, an infrared sensor, a dispersing auxiliary agent, a dispersion, and a method of manufacturing a dispersion. With the curable composition, a cured film having excellent moisture resistance in which the formation of an aggregate derived from a compound having a colorant skeleton is suppressed can be formed. This curable composition includes: a compound A having a structure in which at least one functional group selected from an acid group having a pKa of 3 or lower and a Clog P value of 1.1 or higher, an anionic group obtained by dissociating one or more hydrogen atoms from the acid group, or a salt of the acid group is bonded to a -conjugated structure of a colorant skeleton and having a maximum absorption wavelength in a wavelength range of 650 to 1200 nm; a curable compound; and a solvent.

A method for determining hydration of a polymer includes mixing a water-soluble, powdered dye with a powdered polymer and introducing the mixed water-soluble, powdered dye and powdered polymer into a water-based fluid. Full hydration of the powdered polymer is determined when the mixed water-soluble, powdered dye, powdered polymer and water-based fluid comprises substantially no internal optical contrast.

The present invention relates to a solid solution comprising (a) at least one compound according to formula (I) and (b) at least one compound according to formula (II), or at least one compound according to formula (III), or a mixture of at least one compound according to formula (II) and at least one compound according to formula (III) wherein R.sub.1 and R.sub.2 may, independently of one another, stand for (CH.sub.2).sub.nX, wherein X stands for hydrogen, methyl, a C.sub.1-C.sub.5 alkoxyl, hydroxy, phenyl, C.sub.1-C.sub.5 alkylphenyl, C.sub.1-C.sub.5 alkoxyphenyl, hydroxyphenyl, halogenated phenyl, pyridyl, C.sub.1-C.sub.5 alkylpyridyl, C.sub.1-C.sub.5 alkoxypyridyl, halogenated pyridyl, pyridylvinyl or naphthyl; wherein n stands for 0, 1, 2, 3, 4 or 5; R.sub.3 and R.sub.4 may, independently of one another, stand for phenylene, C.sub.1-C.sub.5 alkylphenylene, C.sub.1-C.sub.5 alkoxyphenylene, hydroxyphenylene, halogenated phenylene, pyridinediyl, C.sub.1-C.sub.5 alkylpyridinediyl, C.sub.1-C.sub.5 alkoxy-pyridinediyl, halogenated pyridinediyl, anthraquinonediyl or naphthalenediyl, wherein the 2 nitrogen atoms bound to R.sub.4 according to formula (II) and (III) form a 5-membered or a 6-membered heterocycle with 2 atoms of an aromatic ring of R.sub.3; wherein the 2 nitrogen atoms bound to R.sub.4 according to formula (II) and (III) form a 5-membered or a 6-membered heterocycle with 2 atoms of an aromatic ring of R.sub.4; X.sub.1 to X.sub.8 may, independently from one another, stand for hydrogen, C.sub.1-C.sub.5 alkyl, C.sub.1-C.sub.5 alkoxy, hydroxy, phenyl or halide. The present invention further relates to a process for producing the solid solution. Furthermore, the present invention relates to a solid solution obtainable or obtained according to said process and to the use of the inventive solid solution, in particular as a NIR transparent black colorant in a NIR non-absorbing component.

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The present invention relates to a perylene bisimide compound of formula (I)

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or a mixture thereof. The present invention also relates to the use of the compound in color converters, to the color converters and their use, and to lighting devices containing at least one LED and at least one of the color converters. The present invention also relates to a printing ink formulation for security printing containing at least one of the phenoxy-substituted perylene bisimide compounds.

The present specification relates to a method for preparing a colorant composition comprising dissolving a first xanthene-based dye having the same number of positive charges and negative charges and a second xanthene-based dye having more negative charges than positive charges by one or more in a first solvent; and precipitating the dissolved first xanthene-based dye and the dissolved second xanthene-based dye in a second solvent, and a colorant composition, a colorant dispersion, a photosensitive resin composition, a color filter and a liquid crystal display device.

The present invention relates to a solid solution comprising (a) at least one compound according to formula (I), and (b) at least one compound according to formula (II), or at least one compound according to formula (III), or a mixture of at least one compound according to formula (II) and at least one compound according to formula (III), wherein R.sub.1 and R.sub.2 may, independently of one another, stand for (CH.sub.2).sub.nX, wherein X stands for hydrogen, methyl, a C.sub.1-C.sub.5 alkoxyl, hydroxy, phenyl, C.sub.1-C.sub.5 alkylphenyl, C.sub.1-C.sub.5 alkoxyphenyl, hydroxyphenyl, halogenated phenyl, pyridyl, C.sub.1-C.sub.5 alkylpyridyl, C.sub.1-C.sub.5 alkoxypyridyl, halogenated pyridyl, pyridylvinyl or naphthyl; wherein n stands for 0, 1, 2, 3, 4 or 5; R.sub.3 and R.sub.4 may, independently of one another, stand for phenylene, C.sub.1-C.sub.5 alkylphenylene, C.sub.1-C.sub.5 alkoxyphenylene, hydroxyphenylene, halogenated phenylene, pyridinediyl, C.sub.1-C.sub.5 alkylpyridinediyl, C.sub.1-C.sub.5 alkoxy-pyridinediyl, halogenated pyridinediyl, anthraquinonediyl or naphthalenediyl, wherein the 2 nitrogen atoms bound to R.sub.3 according to formula (II) and (III) form a 5-membered or a 6-membered heterocycle with 2 atoms of an aromatic ring of R.sub.3; wherein the 2 nitrogen atoms bound to R.sub.4 according to formula (II) and (III) form a 5-membered or a 6-membered heterocycle with 2 atoms of an aromatic ring of R.sub.4; X.sub.1 to X.sub.8 may, independently from one another, stand for hydrogen, C.sub.1-C.sub.5 alkyl, C.sub.1-C.sub.5 alkoxy, hydroxy, phenyl or halide. The present invention further relates to a process for producing the solid solution. Furthermore, the present invention relates to a solid solution obtainable or obtained according to said process and to the use of the inventive solid solution, in particular as a NIR transparent black colorant in a NIR non-absorbing component.

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