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Patent Searching and Data


Matches 851 - 900 out of 1,110

Document Document Title
JPS6334904B2  
JPS63159474A
NEW MATERIAL:Anthraquinone compds. of formula I wherein R1 and R2 are each H, a halogen, hydroxyl, an alkyl or amino; R3 and R4 are each H, a halogen, an alkyl, an alkoxy, an aryloxy, an aryl, cyclohexyl, a 4-alkylcyclohexyl, a carboxyli...  
JPS6326784B2
A perylene-3,4,9,10-tetracarboxylic acid diimide of the formula gives black colorations with excellent lightfastness and weathering fastness, in polyethylene, PVC, surface coatings, inks and aqueous dye formulations.  
JPS6381134A
PURPOSE: To accurately make color of a colored resin product coincide with that of a color sample, by incorporating an influence of a filler as a correction factor in a computer color matching method to carry out color matching. CONSTITU...  
JPS6381164A
NEW MATERIAL:The compound of formula I (R is H, alkyl or alkoxy; R1, R4 and R5 are H or halogen; R2, R3 and R6 are OH or amino; at least a pair of R1 and R2, R3 and R4, and R5 and R6 together form the group of formula II). USE: A colorin...  
JPS6315959B2  
JPS6315308B2
A process for the manufacture of perylenetetracarboxylic dianhydride pigments having improved dispersibility, which comprises adding at least one primary aliphatic or cycloaliphatic amine containing at least 12 carbon atoms to an aqueous...  
JPS6259144B2
Anthraquinone derivatives of the formula (I) or of the tautomeric formula (Ia) in which A denotes an anthraquinone radical which is free from sulphonic acid groups and is optionally further substituted and which preferably consists of at...  
JPS62280261A
A novel process for the preparation of anthraquinoid intermediates and vat dyes by alkali fusion of suitable precursors in the presence of alcohol. The process comprises starting from benzanthrone, pyrazolanthrone or anthraquinone deriva...  
JPS6256186B2  
JPS6245271B2
A process for the preparation of pigmentary forms of perylene-3,4,9,10-tetracarboxylic acid diimide, wherein the diimide is converted to the leuco compound and the latter is oxidized in aqueous suspension, either with exposure to shearin...  
JPS62215902A
PURPOSE: To stabilize a dyeing step and to improve yield of the production of the color filter by letting flow-down and diffusing a dyeing solution on the material to be dyed mounted on the fixing platen to color it, thereby preventing t...  
JPS6229786B2
A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing at least a light-sensitive silver halide, an organic silver salt oxidizing agent, a hydrophilic binder,...  
JPS62129380A
PURPOSE: The titled novel dyestuff suitable for guest-host type liquid crystal display element, etc., having improved two-tone ratio, etc., shown by a specific formula having a perinone skeleton and a dyestuff skeleton having straight-li...  
JPS6223036B2  
JPS6291563A
1. A vat dye based on a condensed reaction product of monobromofluoranthene which contains not more than 7% of dibromofluoranthene with 1-amino-4-benzoylaminoanthraquinone, obtainable by carrying out the condensation of the reaction prod...  
JPS6212826B2  
JPS6248765A
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.  
JPS629142B2  
JPS6227465A
A process for the preparation of dyes of formula (1) as indicated in claim 1 or of mixtures of such dyes is described. The dyes of formula (1) are obtained by reacting 1,4-diaminoanthraquinone-2,3-dicarboximide, or the corresponding mono...  
JPS6225167A
PURPOSE: To obtain in high yield the titled high-qualitay compound, by subjecting aminoanthraquinone in the presence of dimethylimidazolidinone to condensation reaction and treating wet filter cake with an aqueous solution of methanol. C...  
JPS624871B2
Photovoltaic elements having improved conversion efficiencies comprise a photovoltaic element which comprises (1) a first layer comprising an organic electron donor compound, in contact with (2) a second layer comprising an organic elect...  
JPS6215262A
A process for the preparation of perylene-3,4,9,10-tetracarboxylic acid N,N'-dimethylimide in a high-hiding pigmentary form and a pure red shade, in which a finely divided, dry perylene-3,4,9,10-tetracarboxylic acid, N,N'-dimethylimide p...  
JPS621753A
A novel perylene-3,4,9,10-tetracarboxylic acid diimide of the formula is very useful as a black dye or, together with white pigments, as a gray dye.  
JPS6160873B2  
JPS6160868B2  
JPS61291653A
PURPOSE: To obtain industrially advantageously the titled compound useful as pigment, etc., by carrying out a two-stage reaction in one reactor, by condensing successively an aromatic dicarboxylic acid with an aromatic diamine and an ant...  
JPS6158090B2
A process for pigmenting polyolefins and rigid polyvinyl chloride, which comprises the use of perylenetetracarboxylic acid diimide pigments of the formula wherein R1 represents an aliphatic or cycloaliphatic radical of at least 12 carbon...  
JPS61278567A
PURPOSE: To obtain an anthraquinone vat dye which has excellent fastness and a blue tint without using any harmful material such as MnO2, by chlorinating dianthraquinone-N,N'-dihydroazine in the absence of a catalyst in conc. sulfuric ac...  
JPS61238853A
Process for the preparation of compounds of the formula (1) (1) in which R1 denotes a phenyl or naphthyl radical which can be substituted by alkyl, cycloalkyl, alkoxy, aryloxy, arylazo or nitro groups or halogen atoms, and R2 denotes a h...  
JPS6147192B2  
JPS61200169A
NEW MATERIAL:A compound shown by the formula I [X is H, or carboxylic acid (ester); Y is H, or alkoxy; with the proviso that when one of X and Y is H, the other is except H]. EXAMPLE: A compound shown by the formula II. USE: A dyestuff f...  
JPS61173257A
PURPOSE: To obtain an electrophotographic sensitive body having high sensitivity and showing very low residual potential even after a durability test by incorporating a specified polycyclic quinone pigment as a photoconductive substance ...  
JPS61153658A
Multi-active photoconductive insulating elements which exhibit very high electrophotographic speed and panchromatic sensitivity, and whose manufacture can be effectively controlled to provide an electrical contrast ranging from a very lo...  
JPS6126834B2  
JPS61130373A
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.  
JPS61115958A
NEW MATERIAL:Anthraquinone derivatives of formula I, wherein R, R' are each H, alkyl, alkoxy, nitro, cyano, halogen. USE: Dyes for coloration of low-molecular materials such as liquid crystals, min eral oil and sheets, fibers and other m...  
JPS6119629B2  
JPS6191266A
Perylenetetracarbimide mixed crystal pigments having the crystal lattice of the alpha -modification of bis-N,N'-3',5'-dimethylphenyl- perylenetetracarbimide of the formula (1) and consisting of 99 - 70 mole per cent of the symmetrical di...  
JPS6191265A
Perylenetetracarbimide mix-crystal pigments in the crystal lattice of the alpha - Modification of N,N'-bis-3',5'-dimethylphenylperylenetetracarbimide of the formula (1) comprising 98-70 mole percent of the symmetrical diimide of the form...  
JPS6191267A
Process for preparing perylenetetracarbimide mix-crystal pigments in the crystal lattice of the alpha -modification of the N,N'-bis-3',5'-dimethylphenylperylenetetracarbimide of the formula (1) comprising essentially symmetrical N,N'-bis...  
JPS6116789B2  
JPS6116787B2  
JPS6115103B2
Red colors having the anthraquinone structure are disclosed wherein R1 and R2 are independently selected from among hydrogen, halos, lower alkyls, lower alkoxies, nitros, and sulfonates, and R3 and R4 are independently selected from hydr...  
JPS618854B2
A process for the manufacture of a red pigment from perylene-3,4,9,10-tetracarboxylic acid N,N'-bis-methylimide which has been obtained by methylating the corresponding diimide or by fusing naphthalic acid N-methylimide with an alkali me...  
JPS612698B2
Process for dyeing linear polyesters in the melt in brilliant deeply colored and highly light-fast dyeings, which process comprises using as dyeing agent a mixture consisting of 0.001-0.2% by weight, relative to the amount of polyester, ...  
JPS60255853A
PURPOSE: To provide a compd. which has an absorption wavelength in the vicinity of a laser beam-oscillating wavelength, can be well dissolved in liquid crystals, has goal light stability and is used in a liquid crystal which is displayed...  
JPS60250065A
NEW MATERIAL:Compounds of formula I, wherein X is halogen and n is 0W10. EXAMPLE: Compd. of formula II. USE: Anthraquinone derivatives which dye synthetic high-molecular materials, etc. durk brown. PREPARATION: A compd. of formula III (w...  
JPS60228566A
NEW MATERIAL:Anthraquinone compounds of the formula, wherein X is H, halogen, alkyl, alkoxyl, amino, nitro, -CH=CH-CH=CH-; Y is H, halogen, alkyl, alkoxyl. EXAMPLE: 2-Bromo-11,12-dithia-6( H ),17( H )-6,7-diaza-dinaphtho[2,3a],[2,3c]-5,8...  
JPS60228565A
NEW MATERIAL:An anthraquinone compound of the formula (where X is H, a halogen, an alkyl, an alkoxyl, amino, nitro or -CH=CH-CH=CH-; Y is H, a halogen, an alkyl or an alkoxyl). EXAMPLE: 6-Hydroxy-8-thia-13-aza-naphtho[2,3a]-5,14-anthraqu...  

Matches 851 - 900 out of 1,110