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JPS5319482A |
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JPS5318633A |
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JPS533388B2 |
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JPS533389B2 |
An improvement in the process for the production of 1-amino-4-nitroanthraquinone-2-carboxylic acid from 1-aminoanthraquinone-2-carboxylic acid by reaction with formaldehyde in concentrated sulfuric acid and nitration of the reaction prod...
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JPS5311923A |
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JPS532864B2 |
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JPS537661A |
The invention relates to a novel process for the preparation of 1-acylamino-5(8)-chloroanthraquinones, which are starting materials for the preparation of vat dyes. It is characterized in that 1,5(8)-dichloroanthraquinones is reacted wit...
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JPS535226A |
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JPS531290B1 |
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JPS53705A |
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JPS52146434A |
PURPOSE: To prepare 1-aminoanthraquinone of high purity in a good yield effectively by reducing 1-nitroanthraquinone purified by extracting the same from the aqueous suspension thereof with an organic solvent.
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JPS52144032A |
PURPOSE: An anthroquinone derivative of formula I [Z is O, S; R1 is H, lower alkyl; R3 is halogen or R2; R2 is NH2, (substituted)alkylamino, (substituted)alkoxy, (substituted)aryloxy, (substituted)alkylthio, (substituted)arylthio; Q is, ...
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JPS52142729A |
Dyes of the formula where X is chlorine or bromine, Y is and n is 0, 1 or 2. On synthetic fiber materials, the dyes give clear blue colorations which are very fast to thermofixing and fast to light.
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JPS52140682A |
A process for the fixation of organic dyestuffs on materials having a fibrous structure had been found, in which an organic dyestuff containing one or several groups of the formula (I) (I) wherein R1, R2, R3 and R4 each represent a non-i...
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JPS52134632A |
PURPOSE: To prepare dyestuff developer compounds having excellent performance as shift type dyestuff developers, capable of giving an absorption spectrum of a desired color tone after the resumption of the color, by treating specific ant...
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JPS52134631A |
PURPOSE: To prepare dyestuff developer compounds having excellent performance as shift type dyestuff developers, capable of giving an absorption spectrum of a desired color tone after the resumption of the color, by reacting (a) specific...
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JPS52134633A |
PURPOSE: To prepare shift type dyestuff developer compounds having excellent performance as shift type dyestuff developers, capable of giving an absorption spectrum of a desired color tone after the resumption of the color, by treating s...
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JPS52134430A |
PURPOSE: To satisfy requistes for a shift type dye developer and change an absorption spectrum after development to a desirable tone, by using a specified cpd. in a color diffusion transfer method.
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JPS52132182A |
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JPS5243736B2 |
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JPS5243656B2 |
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JPS5243498B2 |
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JPS5242817B1 |
1,262,843. Anthraquinone dyestuffs. CIBAGEIGY A.G. 28 Jan., 1970 [28 Jan., 1969], No. 4121/70. Heading C4P. The invention comprises dyestuffs of the general formula wherein X is H or an acyl radical. X may be the acyl radical of a triazi...
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JPS5242793B1 |
1351060 Purification of anthraquinone sulphonic acids and salts thereof SUMITOMO CHEMICAL CO Ltd 24 March 1972 [27 March 1971] 13996/72 Heading C2C Alpha-anthraquinone sulphonic acids or their salts contaminated with mercury or a mercury...
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JPS52124990A |
A process for dyeing or printing materials made from natural or synthetic polyamide, which process comprises treating these materials with a dye liquor or printing paste containing the dye of the formula I (I)+TR wherein R represents hyd...
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JPS52121584A |
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JPS5239055B1 |
1,180,142. Cationic dye solutions. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 9 May, 1967 [24 May, 1966], No. 21595/67. Heading D1B. The invention comprises cationic dye solutions containing 1) from 5 to 40% by weight of one or more cationic dy...
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JPS52117325A |
1,4-Di(hydroxy- or amino-)-2-[alkoxycarbonylmethylene(oxy or amino)phenyl(oxy)]anthraquinones. Disperse dyestuffs for synthetic textile materials, especially aromatic polyesters.
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JPS52114621A |
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JPS5236523B2 |
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JPS5236524B2 |
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JPS52107027A |
PURPOSE: To produce title compound of high purity accompanying no by-products by the reductive erarrangemetn of nitro nitrosohydroxyanthraqwinone in the presence of a reducing agent in sulfric acid or oleum.
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JPS52103420A |
The present invention relates to 2-phenoxy or 2-phenylthio anthraquinone compounds which bear a group of formula VI, VI bound to the para position of the phenoxy or phenylthio group, IN WHICH R3 is hydrogen; (C1-6)alkyl; (C1-3)alkyl mono...
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JPS5233235B2 |
The invention is directed to the dyeing and printing of synthetic fibre materials from an aqueous medium with partially known dyestuffs of the formula WHEREIN Y = C3-C10-alkylene group, X = oxygen or sulphur, Q = aralkyl and Z1 and Z2 = ...
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JPS5232887B2 |
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JPS5298027A |
1,5-dihydroxy-4,8-diaminoanthraquinone compounds of the formula I (I) wherein Y represents a linear or branched alkyl group of 1 to 5 carbon atoms, R represents a hydrogen atom, an unsubstituted or substituted alkyl group of 1 to 5 carbo...
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JPS5295744A |
PURPOSE: A process for preparing anthraquinone disperse dyes with a markedly reduced number of steps compared with the conventional processes, by the reduction and rearrangement of dinitroanthraquinone in (fumed( sulfuric acid and the fo...
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JPS5291977A |
Textile materials made of cellulose and cellulose-containing fibre material are dyed with finely dispersed aqueous preparations which in addition to polyethylene glycol or boric esters of polyethylene glycol contain water-insoluble dyes ...
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JPS5290531A |
The invention is directed to the dyeing and printing of synthetic fibre materials from an aqueous medium with partially known dyestuffs of the formula WHEREIN Y = C3-C10-alkylene group, X = oxygen or sulphur, Q = aralkyl and Z1 and Z2 = ...
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JPS5227279B1 |
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JPS5280330A |
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JPS5273851A |
Process for the production of alpha -(carboxyethylamino)anthraquinones by reacting an alpha -aminoanthraquinone with an alkenyl carboxylic acid in sulphuric acid medium containing boric acid, metaboric acid or boric oxide.
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JPS5221523B2 |
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JPS5220486B1 |
The invention relates to compounds of the formula (1) A1 - B - R - B - A2 wherein A1 and A2 each denotes a residue of a polycyclic auinone, of which one must be vattable, B denotes a five-membered or six-membered heterocyclic ring which ...
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JPS5263492A |
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JPS5263324A |
PURPOSE: To add to photographic layers a specified compound which is stable in a developing sulution, subjected to cleavage reaction in the presence of imagewise distributed silver ions, and imagewise releases a photographically active c...
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JPS5217527B2 |
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JPS5257235A |
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JPS5256135A |
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JPS5248654A |
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