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43results about "Perinones" patented technology

Stable antihalation materials for photographic and photothermographic elements

An infrared photosensitive element comprising:a support bearing an infrared radiation-sensitive silver halide material;and an antihalation layer comprising a basic antistatic agent, an acid having a pKa less than 4.2 in an amount equal to at least 1.0% mole equivalent of acid to 1 mole equivalent of amine in said antistatic agent, and sufficient antihalation dye to provide a transmission optical density at the wavelength of maximum absorbence of said dye of at least 0.2 after coating.
Owner:CARESTREAM HEALTH INC

Preparation method of pyrene ketone type solvent dye

The invention relates to the technical field of chemical product preparation, in particular to a preparation method of pyrene ketone type solvent dye. The preparation method of the pyrene ketone typesolvent dye includes the following steps: 1,8-diaminonaphthalene, acid anhydride and a water-insoluble organic solvent are mixed and then subjected to a condensation reaction to obtain the pyrene ketone type solvent dye; and the acid anhydride comprises phthalic diamide, tetrachlorophthalic anhydride or 1,8-anhydride naphthalene. According to the preparation method of the pyrene ketone type solvent dye, the 1,8-anhydride naphthalene and the acid anhydride are subjected to the condensation reaction in the water-insoluble organic solvent, applicability is wide, all of solvent orange 60, solventred 135 and solvent red 179 can be synthesized through the preparation method, products have high yield and good quality; and in addition, the preparation method is a typical 'one-pot method', processequipment is simple, since the water-insoluble organic solvent is adopted, separation is easy in the post-processing process, solvent recovery is thorough, waste water has small amount and easy to treat, and the preparation method of the pyrene ketone type solvent dye is suitable for scale production.
Owner:NANTONG LONGXIANG NEW MATERIALS TECH CO LTD

Synthetic method of red naphthalene cyclic ketone dye

The invention discloses a synthetic method of red naphthalene cyclic ketone dye, comprising the steps of with ortho-dichlorobenzene as a reaction solvent, PEG-600 as a catalyst and tetrachlorophthalicanhydride and 1,8-diaminonaphthalene as main materials, holding a certain temperature, isolating water produced in reaction to raise the temperature, performing HPLC (high performance liquid chromatography) medium control, cooling with 1,8-diaminonaphthalene < / =0.5% as a reaction endpoint, separating certain methanol, performing suction filtering, washing filter cake with methanol until there isno smell of ortho-dichlorobenzene, vacuum-drying the filter cake to obtain the target product solvent red 135. The solvent ortho-dichlorobenzene used herein has high boiling point, the recovery rate may reach 95% and above, product yield is high, and the product has good color tone; compared with standards, the product has DC of about 0.5 and weighted strength of about 105.
Owner:JIANGSU DAOBO CHEM

Ester group containing 1,8-naphthalimide fluorescent dichroic dye, its preparation method and application thereof

Disclosed are an ester group containing 1,8-naphthalimide fluorescent dichroic dye, its preparation method and an application thereof. The dye has a structure of a general formula X, in which R is p-1-20 carbon linear alkyl, p-1-20 carbon linear alkoxy, monosubstituted fluorine, polysubstituted fluorine or hydrogen. According to the invention, with 1,8-anhydride naphthalene used as a matrix, the dye molecules have high dichroic ratio and good dissolvability in a liquid crystal through introduction. Guest-host liquid crystal display products with the dye used as a guest body not only have characteristics of a traditional guest-host display such as highlight brightness, high contrast ratio and low energy consumption, but also have characteristics of an active display mode, such as bright color and high brightness. The guest-host liquid crystal display products are liquid crystal display products which have much lower energy consumption and have practical values.
Owner:DALIAN UNIV OF TECH

Disperse dye and method for dyeing hydrophobic fiber material using same

The present invention relates to a disperse dye composition containing a disperse dye and the like represented by formulas (1) through (4), and a method for dyeing a hydrophobic fiber material using the same. The present invention provides a disperse dye composition and a mixed disperse dye composition that not only have strong light fastness of each color, but also well-balanced light fastness between the three primary colors, and uniform dye properties during dyeing. The present invention also provides a method for dyeing using the disperse dye composition and the mixed disperse dye composition.
Owner:NIPPON KAYAKU CO LTD

High-performance black color paste and preparation method thereof

The invention relates to the technical field of black pigments, in particular to high-performance black color paste and a preparation method thereof. The high-performance black color paste comprises a compound containing an anhydride group, a compound containing an amino group and a low-melting-point amphiphilic solid, wherein the compound containing the anhydride group and the compound containing the amino group are equal in molar weight, and the addition amount of the low-melting-point amphiphilic solid is 10%-1000% of the sum of the mass of the anhydride group-containing compound and the mass of the amido-containing compound. The black color paste is simple in component, solvent-free, green, environment-friendly, free of dispersion in the preparation process and easy to prepare. The black color paste does not need to be ground, can be highly dispersed in the low-melting-point amphiphilic solid, can effectively improve the machinability and repeatability, and reduces the chromatic aberration. According to the preparation method disclosed by the invention, the components react in a kneading machine to change color, the black color paste is finally obtained, the preparation steps are simple, the operation is simple and convenient, the preparation is easy, and the application prospect is good.
Owner:CAICAI TECH CO LTD

Mixture of fused-ring aromatic pigment and polymer material and its preparation method and downstream product

Disclosed are a mixture of a fused-ring aromatic pigment and a polymer material and its preparation method and downstream product. According to the method, different thermoplastic polymer materials can be selected and mixed with reactants for generating a fused-ring aromatic pigment; by adjusting the reaction molar ratio of the raw materials and the dosages of the raw materials in the whole reaction system, the mixture of the reactant and the polymer material can be extruded or kneaded to obtain a mixture of the fused-ring aromatic pigment and the polymer material in one step. Compared with the pigment, the raw material reactants of the pigment have better dispersity in the polymer material so that the pigment can be directly generated and uniformly dispersed in the polymer material through extruding or kneading.
Owner:CAICAI TECH CO LTD

Mixture of fused-ring aromatic pigment and polymer material, its preparation method and its downstream products

This application relates to a mixture of condensed ring aromatic pigments and polymer materials, its preparation method and its downstream products. In this method, different thermoplastic polymer materials can be mixed with the reactants used to generate fused-ring aromatic pigments, and the reactants and polymer materials can The mixture can be extruded or kneaded to obtain a mixture of fused-ring aromatic pigments and polymer materials in one step. Compared with pigments, the raw material reactants of pigments have better dispersion in polymer materials, so extrusion or Kneading, the pigment can be directly generated and evenly dispersed in the polymer material, and there is no need to add any solvent during the extrusion or kneading process, and the ortho-diamine compound is almost completely consumed, and the obtained mixture does not need to be purified, avoiding the traditional process of pigment synthesis. The generation of three wastes greatly simplifies the technological process and reduces energy consumption.
Owner:CAICAI TECH CO LTD
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