Inventor

MEININGER FRITZ

39 patents

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MEININGER FRITZ

HOECHST AG

Water-soluble metal free or copper triazino-bis-[hydroxy-naphthylamino]-disazo dyestuffs containing fiber reactive groups, and a process for dyeing or printing cellulose fibers

Water-soluble dyestuffs containing fibre-reactive groups of the vinylsulfone series and the fluoro-s-triazinyl-amino series

Water-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groups

Monoazo reactive dyestuffs

Water-soluble disazo dyestuffs

Phenyl-azo-phenyl dyestuffs

Dyestuff preparations for dyeing and printing natural and synthetic polyamide fibre materials

Water-soluble fiber reactive phenyl-azo-naphthyl dyestuffs containing two sulfo groups in the phenyl moiety

Process for the preparation of lithium salts of anionic dyes by reacting the calcium salts with lithium sulfate or lithium hydrogen sulfate

Water-soluble naphyhyl-azo-pyrazolone fiber reactive dyestuffs

Phthalocyanine dyestuffs and process for preparing them

Process for the preparation of a dyestuff consisting substantially of only unsymmetrical 1:2-chromium complex azo dyestuffs

Water-soluble copper complex disazo compounds containg a chloro triazinylamino group and a group of the vinylsulfone series as fiber-reactive groups and their dyestuffs

Water-soluble disazo compounds of 1-amino-8-naphthal-3,6- or 4,6-disulfonic acid as bivalent coupling component, containing fiber-reactive groups suitable as dyestuffs

Process for dyeing or printing cellulose fibers or cellulose blend fibers with pyridinium-triazine reactive dye, axable without alkali

Water-soluble disazo compounds suitable as fiber-reactive dyestuffs

Water-soluble azo dyestuffs

Process for the preparation of sulfuric acid semiester ethylsulfonyl compounds of aminophenols, aminobenzanilides or phenylpyrazolones by esterification with sulfuric acid and/or sulfur trioxide in a kneader

Water-soluble azo compounds, a process for their preparation and their use as dyes

Water-soluble dyestuffs, processes for their manufacture, their use as fiber-reactive dyestuffs for dyeing and printing fiber materials and the fiber materials dyed with these dyestuffs

Process for dyeing and printing fiber materials containing hydroxy and/or carbonamide groups with reactive dye containing both vinyl sulphonyl and fluoro-triazinyl groups

Dyestuff composition for the dyeing or printing of cellulose fiber materials

Water-soluble phenyl-azo-naphthyl compounds, suitable as dyestuffs, containing a chloro-triazinylamino group and a fiber-reactive group of the vinylsulfone type

Anthraquinone compounds

Water soluble copper-complex phenylazonaphthyl and naphthylazonaphthyl compounds containing as fibre-reactive groups a chloro-triazinyl group and a group of the vinylsulfone series, suitable as dyestuffs

Process for the preparation of fiber-reactive dyestuffs

Water-soluble, fibre-reactive copper complex disazo dyestuffs

Fiber reactive monoazo dyestuffs containing a --SO2 --CH2 --CH2 --O--PO3 H2 group

Water-soluble reactive naphthylazonaphthyl dyestuffs

Process for the preparation of 1-aminobenzene-5-β-sulfatoethylsulfone-2,4-disulfonic acid, the 5-vinylsulfone compound and the alkali salts thereof

Water-soluble, fiber-reactive monoazo dyestuffs

Golden-yellow fiber-reactive water-soluble monoazo dyestuffs

Dyeing cellulose with aminonaphthyl azobenzene vinyl type reactive dyes

Water-soluble phenyl- or naphthyl-azo-carboxypyrazolone compounds, containing a fiber-reactive group with a chloratriazinyl moiety and a group of the vinylsulfone series in the pyrazolone coupling component, suitable as dyestuffs

Water-soluble copper complex phenyl azo naphthalene reactive dyestuffs

Naphthylazo naphthyl copper complex dyestuffs

Process for the reactive dyeing and printing of fibrous materials containing hydroxy groups with a water-soluble organic dyestuff containing at least one phosphonic acid-monofluoride group and at least one ionic water-solubilizing group

HOECHST CELANESE CORP

Fiber-reactive red azo dyestuff

Process for the preparation of the copper complex disazo compounds from disazo compounds containing an O&#39;-alkoxyaniline group by coppering dimethylation at a pH at about 3-6

Process for the preparation of the copper complex disazo compounds from disazo compounds containing an O'-alkoxyaniline group by coppering dimethylation at a pH at about 3-6