Inventor

HENK HERMANN

DE38 patents

⚠️ This page may combine multiple inventors who share the name “HENK HERMANN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HENK HERMANN

BAYER AG

Triazole-group-containing disazo reactive dyestuff

Polyfunctional fibre-reactive dyestuffs

Triphendioxazine and triphendithiazine direct dyestuffs

Metal complex dyestuffs useful as solvent, direct, pigment or fiber-reactive dyes

Reactive dyestuffs, their preparation and their use for dyeing materials containing OH or N

Bifunctional reactive dyestuff mixture

Reactive dyestuffs

Monoazo 2-hydroxy-pyridone-containing reactive dyestuffs

Use of disazo-copper complex dyestuffs for dyeing natural and synthetic materials

Fiber reactive azo dyes containing a morpholinyl-, piperazinyl- or piperidnyl- substituted flurotriazinyl radical

Process for preparing [5-amino-2-(2-hydroxyethylamino)-phenyl](2-hydroxyethyl)sulphone

Reactive dyestuffs where the reactive radical carries a cyclic nitrogen heterocycle

Fiber reactive azo dyestuffs

Fibre-reactive fluorothriazine-group-containing azo dyestuffs

Fluoro-triazine-containing fibre-reactive disazo dyestuffs

Reactive dyestuff containing triazinyl and halopyrimidine moieties

Polyazo reactive dyestuffs containing the 4-fluoro-5-chloropyrimidin-6-yl fiber reactive radical and the use thereof to dye or print hydroxyl-or amino-containing material

6-substituted sulphonyl-8-sulpho-2-naphthyl monoazo reactive dyestuffs

Process for the preparation of 4,5,6-trichloropyrimidine

Dyestuffs, processes for their preparation and their use for dyeing materials containing hydroxyl groups or nitrogen

Reactive dyestuffs based on a substituted barbituric acid

Process for the preparation of substituted 2,4-diamino-6-fluoro-s-triazines

Azo dyestuffs and intermediate products for their preparation

Sulfo-group-containing trisazo dyestuffs

Reactive fluorotriazinylaminonaphthotriazolyphenylazopyridone or pyrimidone dyestuffs

Azo dyestuffs

Copper complexes of 4-fluoro-5-chloropyrimidin-6-yl containing ractive mondazo dyes

Reactive monoazo dyestuffs which contain alkylbenzene and chlorofluoro pyrimidine substituents

Azo reactive dyestuffs containing a fluorotriazinyl group

Heavy metal-containing monoazo dyes

Formazan dyestuffs

Reactive dyestuff preparations containing pyridine derivatives

Process for the preparation of 1-aminobenzene-2-sulphonic acids

Colorants obtained by reacting a NH2 -containing dyestuff with a diisocyanate followed by reaction of this adduct with a diamine

Naphthylazonaphthol dyes which contain a 5-chloro-6-fluoropyrimidin-4-yl reactive group

DYSTAR TEXTILFARBEN GMBH & CO

Water-soluble fiber-reactive colorants, method for the production thereof, and use their use

Water-soluble fiber-reactive dyes, processes for their preparation, and their use

Water-soluble fiber-reactive dyes, preparation thereof and use thereof