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7244375 Thermostable electroconductive polymer layer and method of preparing the same  
The present invention is related to a thermostable electroconductive polymer layer comprising an iodine-doped polymer layer based on 1-amino-9,10-anthraquinone having an electrical conductivity in...
7141685 Thermally stable, anthraquinone colorants containing copolymerizable vinyl groups  
Disclosed are thermally-stable, anthraquinone colorant compounds (dyes) which contain one or more vinyl groups which render the compounds copolymerizable with reactive vinyl monomers to produce...
7052863 Alizarin-based chromogenic substrates, their uses and composition containing same  
An alizarin-based chromogenic substrate, a composition containing the substrate, and its use to detect the presence of an enzymatic activity are disclosed. The substrate is particularly applicable...
6740756 Fluorescent lanthanide chelates  
The present invention provides complexing agents of Formula I which contain novel photosensitizers and produce long-lived fluorescence for use in bioaffinity assays, especially HTRF (homogeneous...
6713641 Reactive anthraquinone colorant compounds and polymeric materials reacted therewith  
Disclosed are blue, diol anthraquinone blue colorant compounds having excellent thermal stability and which can be reacted into or copolymerized with polyester thus providing a blue-colored...
6635350 Polymeric 1,5- or 1,8-disubstituted anthraquinone-derivative colorants and articles comprising such colorants  
Red colorants comprising a chromophore having at least one poly(oxyalkylene) chain attached to the 1-position, as well as at least one poly(oxyalkylene) chain attached to either the 5-position or...
6485559 Pigment colorants for the mass-coloring of synthetic materials  
The present Application relates to pigment colourants of formula wherein R 1 is C 1 -C 6 alkyl, C 1 -C 6 alkoxy, phenoxy or halogen, R 2 is hydrogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, phenoxy,...
6420576 Preparation of arylaminohydroxyanthraquinones  
The process for preparing arylaminohydroxyanthraquinone of the formula by reacting appropriate chlorohydroxyanthraquinone with an amine of the formula (III) H 2 N—Ar (III), is characterized...
6090165 Dye mixtures and their use  
Dye mixtures which contain a dye of the formula ##STR1## together with a dye of the formula ##STR2## in which M + in the dyes of the formulae (1) and (2) are ammonium cations ##STR3## which are...
6051360 Dyestuffs and resin compositions  
Dyestuffs represented by the below-described formula (1), that is, dyestuffs formed of a chromophoric nucleus and a bisphenol introduced therein have excellent solubility in solvents and binder...
5733880 Anthracene derivatives for use as anticancer agents  
A compound having the structural formula, ##STR1## where R 1 and R 2 are independently hydrogen or hydroxyl. R 2 and R 3 are independently oxo or hydrogen, one of R 5 and R 6 is A--B and the...
5679808 Tertiary non-linear optical material  
The present invention discloses a tertiary non-linear optical material comprising a quinone derivative expressed by any one of the general formulas: ##STR1## wherein R 1 , R 2 , R 3 , R 4 , R 5 ...
5639896 Process for the preparation of N,N'-disubstituted 1,4-diaminoanthraquinones  
A process for the preparation of N,N'-disubstituted 1,4-diaminoanthraquinones has been found which is characterized in that 1,4-dihydroxyanthraquinones are reacted with aliphatic or aromatic amines...
5504199 Method of introducing dyes to ethanol  
A dye which is either 2-naphthalenol (phenylazo) phenyl azo alkyl derivatives and 1,4-dialkylamino anthraquinone is added to sufficient non-ionic surfactant to compatibilize it with ethanol and an...
5387704 Preparation of anthraquinones  
Process for preparing amino- and carbamoyl-substituted anthraquinones by Diels-Alder reaction of an N-butadienylcarbamic acid ester of the formula H 2 CCH--CHCH--NH--COOR 2 , wherein R 2 is...
5237077 Non-pollutional process for producing aromatic nitro compounds without using a mineral acid  
The present invention relates to a process for producing an aromatic nitro compound by introducing a nitrogen oxide gas and ozone-containing oxygen or air into a halogenated organic solvent...
5213665 Process for producing 1-aminoanthraquinones  
A process for producing 1-aminoanthraquinones represented by formula (C) ##STR1## wherein R 1 and R 2 , independently from each other, denote one type selected from a hydrogen atom, an alkyl group...
5141957 1,4-bis-(amino-hydroxyalkylamino)-anthraquinones for inhibiting protein kinase C  
The present invention provides novel substituted anthraquinones having the formula ##STR1## wherein R 1 and R 2 are independently H, alkyl, aryl, or arylalkyl; m and n are independently 1, 2,...
5132437 Synthesis of 1-aminoanthraquinone  
1-Aminoanthraquinone (1-AAQ) is synthesized by the reaction of 2-chlorobenzyl chloride and xylene in the presence of a solid acid catalyst to yield 2-chloro dimethyldiphenylmethane, subsequent...
5087755 Process for producing aromatic amines by reduction of aromatic nitro compounds  
A process for producing an aromatic amine under moderate conditions is provided wherein a catalyst higher in activity than conventional catalysts is used. Reduction of an aromatic nitro compound...
5055602 Polymerizable dye  
Dye monomers of the general chemical formula ##STR1## where X denotes an unsaturated polymerizable organic radical; and R is an organic diradical with 2 to 12 carbon atoms.
5032670 Copolymerized anthraquinone-polyester color concentrates  
Disclosed are color concentrate compositions which comprise a polyester having copolymerized therein at least 0.5 weight percent of an anthraquinone colorant compound having the formula ##STR1##...
5030387 Organic conductive complex  
An organic conductive complex comprising an electron donor and an electron acceptor, the electron donor being an anthraquinone derivative represented by formula (1): ##STR1## wherein X 1 , X 2 , X...
4977281 Polyoxyalkylene amino alcohols and polyoxyalkylene amino 1,3-dioxanes and 1,3-dioxolanes  
Primary amino polyoxyalkylene 1,3-dioxane or 1,3-dioxolane compounds are provided of the formula: ##STR1## wherein R and R 1 are independently selected from hydrogen or a lower alkyl group; R 2 ...
4940692 Transfer of dyes  
Heat transferable dyes which compared with the prior art show better solubility and/or higher light fastness and good to excellent transfer properties have the formula (I) ##STR1## where X is H or...
4840749 Process for production of 1-aminoanthraquinone  
A process for producing 1-aminoanthraquinone, which comprises (a) a step of oxidizing 1-nitronaphthalene in the liquid phase with an acidic aqueous solution containing a ceric ion as an...
4770818 Process for the preparation of 1-aminoanthraquinones  
There is disclosed a process for the preparation of 1-aminoanthraquinones from 5-nitro-1,4,4a,9a-tetrahydroanthraquinones with a basic reducing agent, which process is carried out under pressure in...
4695407 Method for purifying 1-aminoanthraquinone  
A method for purifying 1-aminoanthraquinone which comprises previously subjecting a crude 1-aminoanthraquinone to a removal treatment of inorganic impurities so that their content is reduced to not...
4549989 Process for the preparation of monoaminoanthraquinones  
The invention relates to a process for the preparation of monoaminoanthraquinones of the formula ##STR1## wherein R is a non-ionic substituent and n is 0, 1, 2 or 3, by reduction of corresponding...
4455253 Pleochroic anthraquinone dyes  
An anthraquinone dye free from water-solubilizing and ionic substituents of the general formula: ##STR1## wherein Q is NH 2 , OH, alkyl, aryl, NO 2 or halo; n is 0 to 4; each X independently...
4447368 Process for the preparation of aminoarylsulphonic acids in sulfolene solvent  
Aromatic aminosulphonic acids which have a reduced content of discoloring by-products are obtained when aromatic amines are reacted with a sulphonating agent in a reaction medium at least some of...
4435336 Process for the preparation of aromatic aminosulphonic acids  
Aminoarylsulphonic acids which have a relatively high purity and a relatively low content of aminoaryldisulphonic acids can be obtained, if they are prepared, from the corresponding arylammonium...
4420627 Hydrazine dyes  
There are described novel compounds which are represented by the formula ##STR1## wherein X is ##STR2## or --SO 2 R 1 ; Z is H, alkyl or aryl; R is H, alkyl or aryl; DYE is any dye moiety; R 1 ...
4407756 Process for producing aminoanthraquinone  
A process for producing an aminoanthraquinone, which comprises feeding of a nitroanthraquinone and an alkali sulfide continuously into a reaction zone kept at a temperature of from 80° to 140°...
4402854 Liquid crystals having pleochroic dyes  
Anthraquinone dyes of the general formula: ##STR1## wherein R 1 , R 3 , R 4 and R 6 are selected from the group consisting of H, OH, OCH 3 , NO 2 , NH 2 and NHCH 3 ; R 2 and R 5 are selected...
4328161 Process for the preparation of 1-aminoanthraquinones  
A selective process for the preparation of 1-aminoanthraquinones from the corresponding 1-aminoanthraquinone-2-carboxylic acid by decarboxylation in an acid solution in the presence of iron or zinc...
4323431 Purification of compounds having high melting point  
A high melting, high boiling organic compound is easily and stably purified by continuously supplying the molten organic compound to a rectification zone under a subatmospheric pressure and...
4297288 5-Amino-1,2,3,4-tetrahydroanthraquinone and its preparation  
5-amino-1,2,3,4-tetrahydroanthraquinone, as a new industrial product, is disclosed together with its preparation by reduction from 5-nitro-1,2,3,4-tetrahydroanthraquinone.
4294580 Reactive dyestuffs, their preparation and their use for dyeing materials containing OH or N  
Dyestuffs of the formula ##STR1## wherein Fb, W, R 1 , R 2 , R 3 , n and m have the meaning given in the description, and their use for dyeing and printing materials containing hydroxyl groups or...
4261909 Process for the reductive removal of halogen atoms from anthraquinones  
A process for the reductive removal of halogen atoms from amino-, acylamino- or hydroxyanthraquinones, said halogen atoms being bonded in the α-position and/or ortho-position to amino, acylamino...
4226784 2- and 5-Aminoalkylamino anthraquinone dyes useful as basic dyes in coloring hair  
A compound of the formula A-NR--(CH 2 ) n --NHR' wherein R and R' are hydrogen, n is a whole number between 2 and 6 inclusive and A is selected from (1) anthraquinonyl per se wherein NR-(CH 2 ) n ...
4216146 Azo(hydrazo)-anthraquinone compounds  
Novel azo(hydrazo)-anthraquinone compounds and their preparation are provided. These compounds are of the general formula ##STR1## where R is hydrogen or at least one substituent, T 1 is hydrogen,...
4213909 Process for the preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid II  
A process for the preparation of 1-amino-4-bromoanthraquinone-2-sulfonic acid or an alkali metal salt thereof by converting 1-aminoanthraquinone (which can be obtained by reduction of...
4202827 Process for the production of 1-anthraquinonyl hydrazine  
A process for the production of 1-anthraquinonyl hydrazines of the formula ##STR1## wherein X is hydrogen or --NH--NH 2 , which comprises reacting 1-nitroanthraquinones of the formula ##STR2##...
4179450 Process for the preparation of 1-acylamino-5(8)-chloroanthraquinones  
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...
4169203 Water-soluble polymeric colorants containing anionic water-solubilizing groups  
Acetylation of residual primary and secondary alkyl amine groups present in the structure of polymeric colorants and the acetylated colorant products are disclosed. The acetylation is a post...
4088572 Ultrafiltration purification of solution of polymeric anthraquinone colorants  
The ultrafiltration purification of aqueous solutions of polymeric anthraquinone colorants, wherein low molecular weight impurities are removed in an ultrafiltrate leaving a purified anthraquinone...
4076736 Preparation of aminoanthraquinones from nitroanthraquinones  
In the reaction of a nitroanthraquinone with ammonia in a solvent at elevated temperature to produce the corresponding aminoanthraquinone, the improvement which comprises effecting the reaction in...
4076735 Process for the manufacture of aminoanthraquinones  
A process for the manufacture of aminoanthraquinones, wherein nitroanthraquinones are reacted in dipolar aprotic solvents which contain --SO 2 -- or --SO-- groups and are inert to the reactants,...
4054586 Process for preparing 1-aminoanthraquinone having high purity  
A process for preparing 1-aminoanthraquinone having high purity, which comprises either 1. hydrogenating 1-nitroanthraquinone in an aqueous medium in the presence of a base using a hydrogenating...
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