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JPH0445158A |
PURPOSE: To obtain perylene tetracarboxylic acids in high yield by reacting a perylene tetracarboxylic acid diimide with sulfuric acid at a high temperature, separating solid from liquid for separating the reaction product from sulfuric ...
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JPH044350B2 |
1. A cationic dye of the formula see diagramm : EP0061624,P10,F2 where F is an (n+m+p)-valent radical of a quinophthalone or a xanthene dye, R**1 is hydrogen or C1 -C4 -alkyl, R**2 and R**3 independently of one another are C1 -C14 -alkyl...
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JPH043842B2 |
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JPH041788B2 |
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JPH0371431B2 |
Compounds of the formula in which R denotes hydrogen, hydroxyl, amino or optionally substituted alkyl, X denotes chlorine or bromine and n is a number from zero to 4, are obtained from the corresponding mono-alkali metal salts of perylen...
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JPH0357152B2 |
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JPH03192169A |
PURPOSE: To obtain a fluorescent printing ink having color fastness to chemicals and daylight by incorporating a nonpolar fluorescent dye of perylene series into a specific nonpolar polymer matrix having a specific average particle diame...
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JPH0354992B2 |
In the preparation of anthraquinone imides by condensing a vattable anthraquinone compound which contains at least one primary amino group with an aromatic halogen compound, in an organic solvent and at elevated temperature, it is advant...
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JPH0352056B2 |
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JPH03134064A |
PURPOSE: To obtain a fluorescent pigment having high luminous intensity and exhibiting favorable technical characteristics in application such as high light- fastness and small migration trend by comprising a particular non-polar polymer...
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JPH0329826B2 |
Very pure, transparent pigments of high color strength, of the formula in which R is hydrogen or alkyl having 1 to 4 C atoms, X is chlorine and/or bromine and n is a number from 0 to 4 are obtained by converting the corresponding crude p...
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JPH0326383B2 |
An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer conta...
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JPH0326384B2 |
An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer conta...
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JPH0324664B2 |
An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer conta...
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JPH0376877A |
PURPOSE: To obtain a perylene-3,4,9,10-tetracarboxylic acid diimide series pigment which has extremely excellent transparency and color strength and is used for pigmenting or coloring lacquers, plastic materials and metallic lacquers. CO...
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JPH0322862B2 |
The invention relates to an improvement of the process for the preparation of 1,4-diaminoanthraquinones by oxidation of the corresponding 2,3-dihydro-1,4-diaminoanthraquinones with nitrobenzene, which improvement is brought about by carr...
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JPH0316390B2 |
A process for concentrating light over a particular area by means of fluorescent compounds in plastic plates or films, wherein the fluorescent compounds used are those of the formula or where Z is =N- or =CH-, Y is -OSO2R1, -OCOR1 or -OR...
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JPH03500787A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPH0337658A |
PURPOSE: To improve sensitivity to white light or laser light and repetitive characteristics by forming a first carrier generating layer contg. a phthalocyanine compd. and a second carrier generating layer contg. at least one of specifie...
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JPH031352B2 |
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JPH0261998B2 |
1. The use of perylene derivatives of the general formula see diagramm : EP0081143,P5,F1 where Hal is chlorine or bromine, or chlorine and bromine, n is 2 to 14, and the pair of A's in the 3- and 4-positions and the pair of A's in the 9-...
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JPH0257286B2 |
PURPOSE:To form a filter pattern having excellent resistance to light and heat and high accuracy by providing colored layers contg. specific red, green and blue dyes to the color filters of color photosensors, of which plural pieces are ...
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JPH0257095B2 |
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JPH0257285B2 |
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JPH0257288B2 |
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JPH0249345B2 |
Process for preparing 4,4'-dibenzoylaminoanthrimidecarbazole, characterized in that 4,4'-diaminodianthrimide is benzoylated and carbazolated, both steps being carried out in one-vessel fashion and the 4,4'-diaminodianthrimide having been...
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JPH02258873A |
NEW MATERIAL: A compd. of formula I (wherein F is a residue of a dye with no water-solubilized group; B is a crosslinking member and a direct bonding; Z is O and S; V is a residue of H-V {wherein H-V is an oxime of formula II [wherein R1...
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JPH0236153B2 |
Light-collecting system, characterized in that it contains a dyestuff of the formula (I) in which Hal designates identical or different halogen atoms from the series comprising fluorine, chlorine and bromine, R1 and R2 designate hydrogen...
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JPH02166168A |
PURPOSE: To improve hiding power, color tones, coloring properties, etc., of a mixed crystal pigment which uses a halogenated perylenetetracarboxylic acid diimide as a substrate, by specifically regulating all chlorine content, crystal m...
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JPH0224310B2 |
The present invention relates to an advantageous novel process for producing 1-acylamino-3,4-phthaloylacridones by a hydrogenating ring-closure reaction of 1-acylamino-4-anilidoanthraquinone-2'-carboxylic acid esters. The ring-closure re...
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JPH02124980A |
PURPOSE: To prepare an anthrapyridone compd. excellent in heat resistance, suitable for coloring plastics and produced at a low cost by reacting a specific α-haloanthraquinone compd. with a specific amide compd. and then cyclizing the r...
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JPH0216171A |
PURPOSE: To obtain a water-base ink for ink jet recording which gives a printed image with excellent definition, water resistance, and light resistance, and hardly causes clogging by incorporating a water-soluble dye containing a quatern...
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JPH0148303B2 |
Imidazolylmethylene gp.-contg. dyes of formula (I) are new. In the formula, R1 is H, 1-6C alkyl or 2-6C alkenyl; each R2 and R3 independently is H, 1-5C alkyl or 2-5C alkenyl; R4 is 1-12C alkyl and X(-) is an anion. F is a (m+n)-valent r...
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JPH0134268B2 |
A pigment composition is disclosed which includes a pigment and a coloring compound of the general formula (I), (I) wherein Q represents a residue of a coloring compound other than phthalocyanine, X represents -SO2- or -CO-, m and n repr...
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JPH01159662A |
PURPOSE: To obtain an electrophotographic sensitive body high in sensitivity and superior in repetition characteristics by forming on a conductive substrate a photosensitive layer containing a specified perylenetetracarboxydiimide deriva...
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JPH01131503A |
PURPOSE:To form a polarizing film having excellent polarization performance as well as characteristics such as heat resistance, moisture resistance, weatherability, and transparency by incorporating a specific anthraquinone compd. therei...
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JPH0115865B2 |
1. An electrophotographic recording material composed of an electrically conductive layer support and, if appropriate, an insulating interlayer and a photoconductive layer which constitutes at least one layer containing, as the dye which...
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JPS6468358A |
PURPOSE: To produce the compd. being a vat dye simply, quickly and economically and in high yield by dimerizing 1,9-pyrazoleanthrone in the presence of alkali metal hydroxide and alkanol and then allowing the dimer to react with alkyl ha...
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JPH0113512B2 |
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JPS6456662A |
NEW MATERIAL: The compound shown as formula I (R is lower alkyl; R1 is lower alkylene, 1 to 3C lower alkylenoxy or lower alkylenethio; X is OH, carbalkoxy, carboxy or acyloxy). EXAMPLE: 1-Cyano-6-[4'-(2-hydroxyethyl)anilino]-3-methyl-3H-...
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JPS6365712B2 |
Fibrous materials of any kind is finished with an organic compound having fiber-finishing properties and containing one or several groups of the formula in which X is sulfonyl or carbonyl and A represents hydrogen or one equivalent of a ...
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JPS6362553B2 |
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JPS6358105B2 |
An ink-jet color printing system for painting a color image with complex colors arranged in ink-dot patterns; comprises a color image information input unit for reading out color image information from a color original, a color image inf...
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JPS63246287A |
PURPOSE: To obtain a sublimation transfer material for cyan of three primary colors favorable in color forming properties and excellent in preservation stability of recorded images, by using a specified substance having excellent sublimi...
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JPS63246284A |
PURPOSE: To obtain a sublimation transfer for cyan of three primary colors favorable in color forming properties and excellent in preservation stability of recorded images, by using a specified substance having excellent sublimity. CONST...
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JPS63223065A |
The invention relates to a process for preparing blue anthraquinonoid disperse dyes by reacting 1-amino-4-nitroanthraquinonecarboxamides (II) with cyanides in an aqueous medium in the presence of hydroxyl acceptors at above 20 DEG C, whi...
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JPS6344797B2 |
A guest-host type liquid crystal composition comprising one or more host liquid crystals and dissolved therein one or more pleochroic dyes having a trans-4-substituted cyclohexyl group, preferably in an amount of 70% by mole or more of s...
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JPS6342943B2 |
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JPS63202664A |
Novel anthrimidecarbazole compound of the formula (1) as an olive-coloring vat dye exhibiting an increased ability to reflect infra-red light.
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JPS6335193B2 |
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