Inventor

HANSEN GUENTER

66 patents

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HANSEN GUENTER

BASF AG

Azo dyes containing thienothiophene radicals as radicals of the diazo component

Aniline-based oil-soluble azo dyes

Dye mixtures of azo compounds soluble in organic solvents

Phenoneazo dyes

Thiazoleazo dyes having a diazo component from the isothiazole or thiadiazole series

Pyridoneazo dyes with an m-aminobenzoic ester as the diazo component

Azo dyes with a diazo component of the 3-amino thiophene series and a coupling component of the pyridine, pyridone or pyrazole series

Photosensitive recording element

Navy and black dye mixtures: thiophene azo disperse dye and red, yellow or orange disperse dye

2-aminothiophene radical substituted by an electron withdrawing group

Isothiazolylazo dyes having aminophenyl and aminonaphthyl components

Azo dyes containing 2-amino-3-cyano-5-formylthiophene derivatives as diazo components and substituted aniline compounds as coupling components

α-methine substituted thiophene monoazo dye

3-(β-aminoethyl)-4-cyano-isothiazolylazo dyes

2-Amino-5-arylazoarylazothiazole compounds

Dye mixtures for coloring mineral oil products

Polyazo dyes with diazo components of the aminophenol and the amino diphenyl-sulfide, -sulfoxide or -sulfone series

Preparation of concentrated solutions of cationic dyes as mono-carboxylates in glycol ether

Navy blue mixtures of disperse mono-azo dyes for cellulose acetate

Trisazo dye

Azo dyes comprising a heterocyclic diazo component

Navy disperse dye mixtures

Oil-soluble azo dye with N-substituted β-naphthylamine as coupling component

P-Aminoazo disperse dyes

Azo dyes having a benzoisothiazolyl diazo component

Navy dye mixtures and their use in dyeing polyesters

Dye mixtures, and their use in dyeing polyesters

Thiopheneazo dyes with a coupling component of the diaminopyridine series

Preparation of quaternized azo dyes

Preparation of acetalized azo dyes

Thiopheneazo dye based on a coupling component of the thiazole series

Navy dye mixtures of azo disperse dyes for polyester

Novel navy and black disperse dye mixtures including amino-phenyl thiophene azo disperse dye and red, yellow or orange disperse dyes

3-pyridylisothiazoleazo compounds useful as disperse dyes

Isothiazoleazo hydroxypyridone dyes

Thien-2-one compounds with an alkylidene or imino group in the 5-position of the ring

Mono azo dyes containing as diazo radical a thiophene radical which possesses an oxime group

Heterocyclic azo dyes

Iron, copper and chromium complexes of disazo dyes

Copper, cobalt, nickel and iron complexes of disazo dyes

Isothiazolazo dyes having coupling components which are free from unsaturated aliphatic radicals

Substituted phenyl disazo dyes containing a 2-amino-substituted thiazole radical

Bisazo dyes containing a 2-amino-substituted thiazole radical

Monoazo dyes of the thiazole series having a heterocyclic substituent in the 4-position

Acid azo dyes from a 3-amino-benzisothiazole-[2,1]-5-sulfonic acid diazo component

Azo dyes with A2-aminothiophene dye azo component and a coupling component and coupling component of the diphenylamine series

Tetrachloroferrates of basic dyes

Metal complexes of dis- or trisazo compounds containing a middle component twice substituted by hydroxy and/or amino

SANDOZ AG

Dyes containing thiophene radicals

Dyes containing thiophene radicals