Abstract:
Use of anthraquinone derivatives of the formula ##STR1## wherein X is --NH-- or --S--, one Y is --NHCOR, R being an alkyl, aryl or heterocyclic residue, the other Y are hydrogen, Z is halogen, and n is 0, 1, 2 or 3, whereby Z may be 1 to 3 halogen bound to aryl and/or anthraquinone nucleus and/or the residue R, for dyeing polyesters in the melt.
Abstract:
A PROCESS FOR THE MANUFACTURE OF 1-BROMO-4-ACYLAMINOANTHRAQUINONES WHEREIN A 1- ACYLAMINOANTHRAQUINONE IS BROMINATED INTHE PRESENCE OF WATER.
Abstract:
THE CONTINOUS DYEING OF SYBTHETIC FIBRE MATERIALS FROM ORGANIC SOLVENTS. THE FIBRE MATERIALS ARE IMPREGNATED WITH DYE LIQUORS WHICH CONTAIN ANTHRAQUINONE DYESTUFFS OF THE FORMULA
1-(R1-NH-),4-(R-CO-NH-)ANTHRAQUINONE
IN WHICH R REPRESENTS A C1-C17-ALKYL RADICAL, AN ARALKYL OR OPTINALLY SUBSTITUTED ARYL RADICAL AND R1 STANDS FOR AN ALKYL RADICAL WHICH MAY BE SUBSTITUTED BY ALKOXY OR ALKYLAMINO GROUPS, FOR A CYCLOALKYL, ARALKYL OR FOR AN OPTIONALLY SUBSTITUTED ARYL RADICAL, AND SUBEQUENTLY SUBJUCTED TO A HEAT TREATMENT.
Abstract:
A PROCESS FOR PRODUCING MONOACYLATED DERIVATIVES OF DIAMINOANTHRAQUINONES COMPRISING REACTING THE DIAMINOANTHRAQUINONE WITH BENZOYL CHLORIDE OR A MIXTURE OF BENZOIC ACID AND AN INORGANIC ACID CHLORIDE IN THE PRESENCE OF AN N,N-DIALKYL CARBOXYLIC ACID AMIDE.
Abstract:
NEW WATER-SOLUBLE VAT DYESTUFFS CONTAINING ARYLOXY-OR ARYLMERCAPTO GROUPS AND TWO ANTHRAQUINONE RADICALS OR A VATTABLE CHROMOPHOR CONTAINING AT LEAST 4 FUSED RINGS.
Abstract:
Vat dyes are made by condensing a 41:51-dichloroo 41:51-dibromo-11:81-naphthoylene-benz- or naphthimidazole or substitution product thereof with a 1-amino-anthraquinone in the presence of an acid-binding agent and heating the chlorine- or bromine-containing intermediate thus obtained in the presence of an acid amide which may be substituted at the nitrogen atom, such as acetamide, pyrrolidone, benzamide or phosphoric acid-tris-dimethylamide, and an acid-binding agent in the presence or absence of an organic liquid such as a -chloronaphthalene at temperatures from 150 DEG to 270 DEG C. Olive-green to green vat dyes are obtained.