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JPH0469139B2 |
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JPH04305647A |
PURPOSE: To offer an information recording medium which enables high-density and large-capacity recording. CONSTITUTION: The medium has a recording layer 7 containing photochromic compd. which does not change by electric stimulation and ...
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JPH04300971A |
PURPOSE: To provide a novel dianthraquinone-based compound having high electron acceptability and useful as an electric charge-transfer material in photosensitizers. CONSTITUTION: A dianthraquinone compound of formula I (R1, R2, R3, R4 a...
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JPH04300970A |
PURPOSE: To provide a novel dianthraquinone-based compound having a high electron-accepting property and useful as an electric charge-transfer material in photosensitizers. CONSTITUTION: A dianthraquinone compound of formula I (R1, R2 ar...
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JPH04298570A |
PURPOSE: To prepare the title deriv. which has excellent electron-accepting properties, is useful as an electron-transporting material, and gives an electrophotographic photoreceptor excellent in sensitivity by selecting a specific anthr...
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JPH0465116B2 |
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JPH0465105B2 |
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JPH0464880B2 |
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JPH04277736A |
PURPOSE: To provide the silver halide photographic sensitive material which obviates the deterioration in antistatic performance by lapse of time and has the antistatic property without having an adverse influence on the photographic per...
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JPH0461796B2 |
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JPH04270689A |
PURPOSE: To improve higher light resistant fastness, resistivity to a humidity and a chemical substance, solubility in a printing ink blend, a color strength, hue clarity and the like by using a specific anthraquinone dye. CONSTITUTION: ...
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JPH04261442A |
PURPOSE: To obtain a plastic material internally colored by an anthraquinone compound containing a specific long chain acylamino group and having blue - purple color, showing high clarity, color purity, chroma and transparency and good i...
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JPH04254865A |
PURPOSE: To obtain a color picture image excellent in color reproducibility and picture image retainability and having a good color tone by containing a specific (J) dye. CONSTITUTION: A dye expressed in a formula is contained. R1-R6 rep...
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JPH04254864A |
PURPOSE: To obtain a color picture image excellent in color reproducibility and picture image retainability and having a good color tone by containing a specific (J) dye. CONSTITUTION: A dye expressed in a formula is contained. R1-R6 rep...
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JPH04250466A |
PURPOSE: To obtain a toner having superior color reproducibility, image retentivity, color transparency and stable uniform electrostatic chargeability. CONSTITUTION: A toner contg. a dye represented by formula 1 and colored with this dye...
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JPH04237069A |
PURPOSE: To obtain the electrophotographic yellow toner superior in image reproduction performance and image storage stability by incorporating a specified dye. CONSTITUTION: This dye is represented by formula I in which each of R1-R8 is...
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JPH04235570A |
PURPOSE: To obtain color images of good tone which are excellent in color reproducibility and image holding property by putting a specific dye in a toner for coloration. CONSTITUTION: A dye expressed by the formula is contained in a tone...
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JPH04235568A |
PURPOSE: To obtain a toner which has sharp grain size distribution and excellence in dyeing properties, in light resistance and in sublimation resistance and which also has high tinting strength by putting a specific dye compound as a co...
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JPH0452261B2 |
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JPH04230256A |
PURPOSE: To produce useful compound for a dye in which a content of remaining copper is reduced remarkably by allowing bromo amine acids to react with aromatic sulfonamide or amine in the presence of a copper salt and organic reducing ag...
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JPH04227663A |
PURPOSE: To obtain novel reactive dyestuffs useful for dyeing and printing a hydroxy-and nitrogen-containing fiber materia such as cellulose, wool, silk, polyamides or polyurethanes by selecting specific dyestuffs. CONSTITUTION: Dyestuff...
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JPH04227764A |
PURPOSE: To obtain a high purity halide of a polycyclic vat dye or its polycyclic precursor in a high yield by using Cl or Br as a halogenating agent and fused benzoic acid as an diluent. CONSTITUTION: A polyclic vat dye or its polycycli...
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JPH04226160A |
PURPOSE: To obtain the subject novel dye showing good solubility in a usual org. solvent and useful for producing a liquid crystal polymer by selecting a specific anthraquinone dye. CONSTITUTION: An anthraquinone dye represented by formu...
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JPH0446940B2 |
1-Amino-2-phenoxy-4-hydroxyanthraquinones, which are useful as a red disperse dye for polyester fibers, and also useful as an intermediate for the production of other red disperse dyes, are produced in a high yield and purity by reacting...
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JPH0446317B2 |
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JPH0442438B2 |
Dyestuffs of the formula I in which Y1, Y2, Y3, Y4 designate hydrogen, halogen, nitro, amino, alkylamino, arylamino, cycloalkylamino, aralkylamino, alkylthio, arylthio, cycloalkylthio, aralkylthio or hydroxyl, it being possible for the h...
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JPH04145165A |
PURPOSE: To obtain the subject heat sensitive recording material excellent in shelf life by using a specified anthracene compound as a precursor of a dye and a basic organocompound as a developer. CONSTITUTION: An objective heat sensitiv...
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JPH0424470B2 |
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JPH0424469B2 |
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JPH0421706B2 |
This invention relates to an anthraquinone dyestuff for cellulose containing fibers represented by the formula:wherein R1 represents amino or hydroxyl, R2 represents hydrogen, chlorine, bromine, cyano or -SO2R wherein R represents methyl...
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JPH0410514B2 |
A composition for use in thermally-addressable liquid crystal display devices, comprising a smectic liquid crystal material and a helichromic compound possessing both a chromophoric moiety and an optically-active moiety. The helichromic ...
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JPH049830B2 |
A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye wherein the pleochroic dye comprises at least one compound having a formula: Formula (I) wherein: R represe...
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JPH049187B2 |
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JPH049188B2 |
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JPH049190B2 |
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JPH049189B2 |
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JPH046223B2 |
Anthraquinone dyestuffs of the formula (I) in which R1 represents alkyl, aralkyl, -CO-X-alkyl, -CO- X-aralkyl, -CO-X-aryl, -O-alkyl, -O-aralkyl, -O- aryl, -CN, -NO2, -CF3, halogen or a heterocyclic radical and R2 represents H or R1, X re...
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JPH045375B2 |
Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least onegroup, wherein R is hydrogen, alkyl, provided that the a-carbon does...
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JPH048770A |
NEW MATERIAL:Compounds of formula I [A1-A4 are phenyl or naphthyl and on or more thereof are substituted with NHCOR; R is (halogen-substituted)alkyl or aryl]. EXAMPLE: 1,4,5,8-Tetra(4'-acetanilidephenylamino)anthraquinone. USE: A light-a...
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JPH0372604B2 |
Use of hydroxyanthraquinones for the coloration of human keratin fibres, and process and composition in which they are used. The composition contains, in a cosmetically acceptable medium, at least one hydroxyanthraquinone of the formula:...
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JPH0363590B2 |
Dye mixtures containing at least two dyes of the formula (1) (1) wherein R is hydrogen, methyl or ethyl, and n is an integer from 2 to 4, exhibit on synthetic textile material a build-up which is considerably better than that of the indi...
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JPH0363589B2 |
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JPH03212455A |
NEW MATERIAL: A compound of formula I [A1 and A2 are each a curable group; Q is the residue of (substituted) 1,3,5-triazine or an aromatic, carbocyclic or heterocyclic dicarboxylic acid]. EXAMPLE: A compound of formula II. USE: Dyeing or...
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JPH0357152B2 |
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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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JPH0345108B2 |
The present invention relates to a process for the differential dyeing of such polyamide fibres and materials containing polyamide fibres as are made of components which differ in dyeability, or mixtures of polyamide fibres, with dyes or...
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JPH0340154B2 |
A colored thermoplastic resin composition is provided which comprises a thermoplastic resin and a colorant in the form of an alkyleneoxy-substituted chromophore group provided in said thermoplastic resin in a minor amount sufficient to p...
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JPH0339554B2 |
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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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JPH0359076A |
PURPOSE: To obtain a dye having a low m.p. and excellent light stability useful as a coloring agent and a dye for thermal image transfer by selecting a dye soluble in a non-aq. solvent having a central nucleus having a specific structure...
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