51results about "Isoindoline dyes" patented technology

A pigment dispersion which has excellent depolarization characteristics, can form color pixels having a high contrast, and has excellent storage stability; a coloring resin composition containing this pigment dispersion; a color filter made from this coloring resin composition; and a liquid-crystal display employing this color filter. The dispersion is a colorant dispersion containing (A) a colorant and (B) a dispersant, and is characterized in that the colorant (A) comprises a pigment whose crystallite size is 140AA or smaller in terms of the value calculated using the Scherrer equation from a half-value width determined by X-ray diffractometry, and that the dispersant (B) comprises (a) a nitrogenous graft copolymer and / or an acrylic block copolymer.

An object of the present invention is to obtain color filters having a high contrast, a high color purity and an improved transmittance for blue color, and a display using the color filters. In the present invention, there is used a colored composition for color filter comprising at least one coloring agent, a base polymer and at least one solvent, said base polymer containing a polyamicacid whose light transmittance decreases by 2% or less in the visible region (wavelength: 400 nm to 800 nm).

An object of the present invention is to obtain color filters having a high contrast, a high color purity and an improved transmittance for blue color, and a display using the color filters. In the present invention, there is used a colored composition for color filter comprising at least one coloring agent, a base polymer and at least one solvent, said base polymer containing a polyamicacid whose light transmittance decreases by 2% or less in the visible region (wavelength: 400 nm to 800 nm).

The invention discloses a method for preparing an isoindoline pigment, and relates to a preparation method for a pigment. The method is characterized in that a raw material formula comprises the following components by mass: 102.4 to 153.6 grams of organic acid, 10.24 grams (0.08 mol) of barbituric acid (or derivatives thereof), 4.61 to 6.45 grams of 1,3-diiminoisoindoline, 0.10 to 0.41 gram of antioxidant, proper amount of (3 to 10 percent) alkali, 278 to 1,042.5 grams of water, and 0.15 to 1.5 grams of surfactant. The preparation method comprises the following steps: 1, pigment synthesis; 2,surfactant solution preparation; and 3, pigmentation. Compared with the traditional product, the pigment obtained by the formula and the preparation method has the advantages of good brilliance, highpigment yield and strong tinting strength; and the oxidation resistance and light resistance of the pigment in plastic application are further improved.

The invention belongs to the field of cell fluorescence imaging, and relates to an organic fluorochrome molecule and a synthesis method and application thereof. The synthesis method comprises the following steps of carrying out heating reaction on 2',3'-dibromo-1,2,7,8-tetrahydro-2',3'-dimethoxy-3,4:5,6-dibenzophenanthrene-9,10-dicarboxylic anhydride and dodecylamine in organic solvent, reacting the obtained lactim with aroma boric acid and Na2CO3 in organic solvent under argon shield in the presence of four (triphenylphosphine) palladium so as to obtain the organic fluorochrome molecule shown as formula (I). The organic fluorochrome molecule is prepared into nano particles to be used as fluorochrome of living cells and used in fluorescence imaging of living cells. The synthesis method for the organic fluorochrome molecule and the nano particles thereof is simple, uses cheap raw materials, has good stability, and is convenient for preparing in large scale. (img file='DDA0000453547680000011.TIF' wi='808' he='434' / ).

The present invention provides fluorescent compounds of formula (I) and methods monitoring protein-protein interactions.

Disclosed are aqueous printing inks that are used for inkjet textile printing and contain one or several compounds of general formula (I), wherein A, B, R<1> to R<6>, and D have the meaning indicated in claim 1, methods for the production thereof, and the use thereof for inkjet textile printing.

An ink composition comprising:(A) an isoindoline-based pigment;(B) a pigment dispersing agent;(C) a radically polymerizable compound; and(D) a polymerization initiator;the radically polymerizable compound (C) comprising at least one compound selected from the group consisting of compounds represented by Formula (I) to Formula (III):whereinR1 denotes a hydrogen atom or a methyl group,A1 denotes a single bond or a divalent linking group,R2 denotes a monovalent substituent,m denotes an integer of 0 to 13, and when m is an integer of 2 to 13, the R2s may be identical to or different from each other,R3 denotes a hydrogen atom or a methyl group,A2 denotes a single bond or a divalent linking group, andn denotes an integer of 1 to 5.

The invention relates to a method for preparing C.I. pigment yellow 139. The method comprises the following steps of: (1) preparing 1,3-diiminoisoindoline from phthalonitrile; (2) reacting the 1,3-diiminoisoindoline with barbituric acid to prepare a crude C.I. pigment yellow 139 product; and (3) performing pigmentation on the crude C.I. pigment yellow 139 product. The method is characterized in that ammonia water is added or ammonia gas is introduced in the reaction in the step (1). The yield of the C.I. pigment yellow 139 is improved, and the obtained pigment has high performance (such as high coloring power, bright color, high dispersibility, extremely high light fastness and weathering fastness and the like).

The present invention provides fluorescent compounds of formula (I)and methods monitoring protein-protein interactions.

An object of the present invention is to provide a pigment dispersion excellent in the dispersibility of C.I. Pigment yellow 185. The present invention provides a pigment dispersion wherein C.I. Pigment yellow 185 and a compound represented by the following formula (1) are dispersed in a dispersing medium:

A purpose of the present invention is to provide a fine coated pigment which is inhibited from becoming coarse particles and is easily dispersible. The coated pigment is a pigment, the surface of which has been coated with a resin, wherein the resin is an alpha-olefin copolymer having an acid group and the amount of the resin with which the pigment has been coated is 10-50 parts by mass per 100 parts by mass of the uncoated pigment (X).

An object of the present invention is to provide a pigment dispersion excellent in the dispersibility of C.I. Pigment yellow 185. The present invention provides a pigment dispersion wherein C.I. Pigment yellow 185 and a compound represented by the following formula (1) are dispersed in a dispersing medium: Formula (1)

Provided is a pigment dispersion excellent in the dispersibility of C.I. Pigment yellow 185. The pigment dispersion includes C.I. Pigment yellow 185 and a compound represented by the following formula (1), which are dispersed in a dispersing medium:

A method for producing a halogenated organic pigment comprising a halogenation step of halogenating an organic pigment with a halogenating agent, wherein the halogenating agent comprises one or more N-haloimide compounds selected from the group consisting of trichloroisocyanuric acid, a metal salt of dichloroisocyanuric acid, tribromoisocyanuric acid, and a metal salt of dibromoisocyanuric acid. According to the present invention, a method for producing a halogenated organic pigment which does not use high toxic raw materials, does not generate a large amount of unfavorable by-products such as hydrogen halide gas and succinimide, and is excellent in terms of safety and productivity can be provided.

The present invention provides an active energy ray-curable inkjet magenta ink composition that achieves excellent color reproducibility and is also excellent in storage stability, and an ink set using the composition. The magenta ink composition according to the present invention contains, as two kinds of quinacridone pigments, (A) unsubstituted quinacridone and (B) 2,9-dimethylquinacridone.

The invention discloses a synthetic method of an isoindoline yellow pigment. The synthetic method comprises the following steps: adding barbituric acid and 1,3-diimino isoindoline into an inorganic acid methanol solution to react, and then collecting the isoindoline yellow pigment from a reaction product. According to method disclosed by the invention, various isoindoline pigments with different molecular structures can be synthesized; the awkward situation of scarce variety of the existing isoindoline pigments is overcome; isoindoline pigment family is expended and extended; use of an organic acid is avoided in the synthetic method; the cost and post-treatment difficulty are effectively reduced; and the synthetic method is small in environmental pollution and convenient to industrially produce.

The invention provides a method for anhydrously preparing an isoindoline pigment, comprising the following steps of: dissolving or suspending barbituric acid into an organic solvent A; adding an organic solvent B containing 1,3-diimino isoindoline to react; in a reaction process, fractionating generated ammonia gas; and then, collecting the isoindoline pigment from a reaction product. The method disclosed by the invention has the beneficial effects are very obvious; a pure organic solvent reaction system is adopted and a product yield is high; only the organic solvents need to be recycled; the production cost is low and the environmental pollution is small; and the method is convenient for industrial production.

A structure has a color filter having two or more different types of pixels and an absorption layer including at least one selected from a yellow colorant or a colorant having a maximum absorption wavelength in a wavelength range of 400 to 500 nm, in which the structure has the absorption layer on an optical path of at least one pixel of the pixels of the color filter and on the side through which light is incident on the pixel.

The purpose of the present invention is to obtain: a cured film that has high sensitivity, enables formation of a pattern of a low-tapered shape after development, is capable of suppressing a change in the dimensional width of pattern openings before and after thermal curing, and exhibits excellent light-shielding properties; and a negative-type photosensitive resin composition used to form said cured film. This negative-type photosensitive resin composition comprises an alkali-soluble resin (A), a photopolymerization initiator (C1), and a black colorant (Da), wherein: the alkali-soluble resin(A) has a fluorine atom-containing structural unit in a specific proportion and comprises a first resin (A1) that contains at least one selected from the group consisting of polyimides (A1-1), polyimide precursors (A1-2), polybenzoxazoles (A1-3), and polybenzoxazole precursors (A1-4); and the photopolymerization initiator (C1) comprises an oxime ester-based photopolymerization initiator (C1-1) having a specific structure.

A coloring composition includes Color Index Pigment Red 264, a graft resin having an acid group, a photopolymerizable compound, and a photopolymerization initiator.

An object of the invention is to provide a cured film which is high in sensitivity, capable of forming a pattern in a low-taper shape after development, capable of the change in pattern opening width between before and after thermal curing, an excellent in light-blocking property, and a negative photosensitive resin composition that forms the film. The negative photosensitive resin composition contains an (A) alkali-soluble resin, a (C1) photo initiator, and a (Da) black colorant, where the (A) alkali-soluble resin contains a (A1) first resin including one or more selected from the group consisting of a (A1-1) polyimide, a (A1-2) polyimide precursor, a (A1-3) polybenzoxazole, and a (A1-4) polybenzoxazole precursor, and has a structural unit having a fluorine atom at a specific ratio, and the (C1) photo initiator contains an (C1-1) oxime ester-based photo initiator that has a specific structure.

A coloring composition includes Color Index Pigment Red 264, a graft resin having an acid group, a photopolymerizable compound, and a photopolymerization initiator.

Colorant compounds and coloring compositions comprising the same are provided. More particularly, there are provided a colorant compound having excellent color characteristics, heat resistance, and solubility so as to be applicable to manufacture a new structure of a color filter and a coloring composition comprising the same.

The invention discloses a pigment yellow 139 synthesis process, which belongs to the technical field of pigment production, and comprises the following steps: synthesizing 1, 3-diimino isoindoline from phthalic anhydride and urea under the action of a catalyst by using a solid-state melting method in an intermittent or continuous or intermittent and continuous combined manner, and synthesizing the 1, 3-diimino isoindoline from the 1, 3-diimino isoindoline to obtain the pigment yellow 139. The preparation method comprises the following steps: reacting 2, 3-diimino isoindoline with barbituric acid to synthesize a crude product pigment yellow 139; the method has the beneficial effects that the phthalic anhydride and the urea are used in the solid melting method, so that the problem of phthalonitrile is avoided, and large-scale production of the pigment yellow 139 is facilitated; the dehydration and drying process in the refining process of the 1, 3-diimino isoindoline is omitted, the process time is shortened, and a large amount of energy consumption is saved; and a high-temperature filtering means is adopted, so that the content of cyanuric acid can be maintained below 30ppm, meanwhile, the loss of the pigment yellow 139 along with a large amount of hot water can be avoided, and the yield of the pigment yellow 139 is ensured.

One embodiment relates to a water-based inkjet yellow ink containing a yellow pigment (A) having a specific partial structure, an organic solvent, a basic organic compound, and water, wherein an amount of the yellow pigment (A) is 1 to 10% by mass of a total mass of the water-based inkjet yellow ink, the basic organic compound contains 0.1 to 1.25% by mass of a basic organic compound (B) having a pKa value of 9.5 or less at 25° C. of the total mass of the water-based inkjet yellow ink, and an amount of an organic solvent having a boiling point of 240° C. or higher under 1 atmosphere is 5% by mass or less of the total mass of the water-based inkjet yellow ink.

An ink composition comprising:(A) an isoindoline-based pigment;(B) a pigment dispersing agent;(C) a radically polymerizable compound; and(D) a polymerization initiator;the radically polymerizable compound (C) comprising at least one compound selected from the group consisting of compounds represented by Formula (I) to Formula (III):whereinR1 denotes a hydrogen atom or a methyl group,A1 denotes a single bond or a divalent linking group,R2 denotes a monovalent substituent,m denotes an integer of 0 to 13, and when m is an integer of 2 to 13, the R2s may be identical to or different from each other,R3 denotes a hydrogen atom or a methyl group,A2 denotes a single bond or a divalent linking group, andn denotes an integer of 1 to 5.

The present invention relates to a colorant and a coloring composition comprising the same. More specifically, the present invention relates to a novel structure of colorant, which exhibits excellentcolor characteristics, heat resistance, and solubility, and thus can be used for manufacturing color filters, and to a coloring composition comprising the same.

A colored curable resin composition which comprises a colorant (A), a resin (B), a polymerizable compound (C), and a polymerization initiator (D), wherein the colorant (A) comprises an isoindoline pigment (A1) and a perylene compound (1) having an absorption maximum at 400-560 nm and having no absorption maximum in the range of 560-780 nm, excluding 560 nm.