42results about "Perinones" patented technology

Provided are novel hetero-polycyclic compounds having a specific structure, color-changing material compositions comprising (A) a fluorescent coloring matter comprising at least one of the hetero-polycyclic compounds described above and (B) a binder material, color-changing films comprising the above hetero-polycyclic compounds, coloring matters comprising the above hetero-polycyclic compounds, and pigments or dyes comprising the hetero-polycyclic compounds described above, and provided are color-changing material compositions which are not deteriorated in a color-changing performance even after used for long time and which are prevented from being unusable due to deposition of coloring matters during storage and color-changing films produced by using the same, and novel hetero-polycyclic compounds, coloring matters and pigments or dyes which actualize them.

The invention pertains to a method for preparing derivatives of the pyrazolinylnaphthalic acid having the general formula where Ar1 and Ar2 are unsubstituted or substituted phenyl radicals bearing in the para position an alkylated or acylated oxy- or amino group, or a polynuclear aryl radical, and Ar3 is a substituted N-naphthalimid or 1,8-naphthylene-1',2'-benzimidazole. Compounds ofthe above general formula are high-efficient red organic luminophors and are used widely as luminescent components of dyes for plastics and liquid scintillators, in hydrogeology to study water streams, to label the chemical industry wastewaters, as laser dyes, etc.

The present invention relates to a dye of formula (I) where R1, R2, X, Y and t are each as defined in claim 1, to its preparation and to its use.

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.

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.

The invention discloses a preparation method of a pyrene ketone solvent dye. The preparation method comprises the following steps: (1) under double protection of a nitrogen atmosphere and a reducing agent, reacting 1,8-diaminonaphthalene with phthalic anhydride (or 1,8-naphthalic anhydride) under the action of phase transfer catalyst polyethylene glycol in DMF aqueous solution under reflux temperature; (II) after condensation end point, cooling the reaction solution to room temperature, filtering and washing a filter cake by the DMF aqueous solution with low concentration. The dyes involved are solvent orange 60 (C.I.564100) and solvent red 179 (C.I.564150). Under the double protection of the reducing agent and the nitrogen atmosphere, the target product is formed with high conversion rate in DMF-water mixed solvent by means of the phase transfer catalyst, high quality dye is obtained by simple separation, and more than 90% solvent (in DMF) is recovered, and the preparation method of the pyrene ketone solvent dye is a green preparation method.

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.

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.

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.

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.

The invention provides a method for manufacturing yellow disperse dyes having excellent fastness to light, which is lowcost, simple and convenient, and can realize industrial production. The method for manufacturing yellow disperse dyes is used for manufacturing yellow disperse dyes containing more than 70 mass/% of a compound represented by the following Formula (2) and less than 30 mass% of a compound represented by the following Formula (3). The manufacturing method is characterized in that the nitryl of the compound represented by the following Formula (1) [in the formula, R represents an amino] is reduced into an amino group, and the amino group is reacted with 1,8-naphthalenedicarboxylic acid anhydride, then, the protecting group R of the amino is deprotected and forms a ring.

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.

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.

This invention relates to a process of preparing a perylene pigment compositions containing a reactive co-precipitated blend of (1) about 75 to about 99.9 mol %, relative to the pigment composition, of a compound having the formula (I) wherein R is hydrogen, C1-C6 alkyl, C5-C8 cycloalkyl, C7-C16 aralkyl, or C6-C10 aryl, A is C1-C6 alkyl, C1-C6 alkoxy, a sulfonyl group, amino, ammonium, hydroxy, nitro, or halogen, and m is zero or a number from 1 to 8; and (2) about 0.1 to about 25 mol %, relative to the pigment composition, of a perylene dicarboxamidine imide having the formula (II) wherein W is optionally substituted or modified C2-C3 alkylene.