Inventor

PAPENFUHS THEODOR

DE116 patents

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

PAPENFUHS THEODOR

HOECHST AG

Process for the preparation of glycoloylanilides

Process for the preparation of 1,4-bis(4-hydroxybenzoyl)-benzene

Process for the preparation of aromatic dialkylamines

2,3-difluoro-6-nitrobenzonitrile and 2-chloro-5,6-difluorobenzonitrile-(2,3-difluoro-6-chlorobenzonitrile), process for their preparation and their use for the preparation of 2,3,6-trifluorobenzoic acid

Process for the preparation of tetrafluorophthalic acid and/or tetrafluorophthalic anhydride

Process for the preparation of 2-substituted benzothiazoles

Process for the manufacture of 2-hydroxybenzothiazoles

Process for the preparation of 4-amino-1,8-naphthalimides

Process for preparing multiply fluorinated nitrobenzenes

Process for the preparation of aromatic fluoro compounds

Process for preparing fluoroanilines

Process for the preparation of 2-nitro-5-fluoro- or -5-chlorophenol

Process for the preparation of 6-chloro-2,4-dinitroaniline

Process for the coloration of thermoplastic polymers and polycondensates in the mass with water-insoluble disazo-methine compounds

Process for the coloration of thermoplastic polymers and polycondensates in the mass with water-insoluble disazomethine compounds

Perinone compounds as colorants for polyolefins

Daylight fluorescent pigments

Process for the preparation of 2,4-dichlorofluorobenzene

Diaminophenyl ureas

Process for the preparation of dyestuff compositions

Spin-dyeing of acrylonitrile homopolymers and copolymers

Substituted phenyl hydroxyethyl sulfones, and process for their preparation

Process for the preparation of pure 3-acetylamino-anilines

Process for the preparation of pure tolutriazoles

Process for preparing 2-aminobenzothiazoles

Process for the preparation of halogen-substituted 2-aminobenzothiazoles

Process for isolating 2-hydroxynaphthalene carboxylic acids from reaction mixtures of the alkali metal salts of 2-hydroxynaphthalene with carbon dioxide

Process for the preparation of esters of aromatic carboxylic acid

Process for the preparation of esters of aromatic carboxylic acids

Process for the preparation of salts of substituted or unsubstituted phthalic acids

Process for the preparation of substituted 2,3-difluoropyridines

Process for preparing alkyl 3-hydroxy-2, 4, 5-trifluorobenzoates and/or alkyl 3-alkoxy-2, 4, 5-trifluorobenzoates

N&#39;-substituted N-amino-3,4,5,6-tetrafluorophthalimides

Process for the preparation of 2,3,4,5-tetrafluorobenzoic acid

Hydroxyethylsulfonylnitro- and hydroxyethylsulfonylamino-benzoic acids and processes for their preparation

Process for the preparation of oxethylmercaptobenzaldehydes and their oxidation products

Process for the preparation of 2-aminophenyl thioethers

Process for the preparation of 5-hydroxyethylsulfonyl-2-aminophenol (ethers)

Process for the manufacture of 2(3H)-benzothiazolones substituted in 3-position

Process for the manufacture of 2,2&#39;-imino-bis-benzothiazole compounds

Process for the manufacture of 2-amino-aryleno-thiazole compounds and of derivatives thereof N-substituted in the ring

Process for the preparation of monoaryl thioureas

Water-insoluble disazomethine mixed metal-complex compounds, process for preparing them and their use as colorants

Metal-containing disazomethine compounds, process for preparing them and their use as colorants

Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing them and their use

Water-insoluble nickel-complex disazo methine compounds

Process for the preparation of 4-amino-1,8-naphthalic acid-N-arylimides

Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing them and their use

CLARIANT GMBH

Process for producing quinazoline derivatives

HOECHST ATKIENGESELLSCHAFT

Process for preparing 3,5-difluoroaniline

N'-substituted N-amino-3,4,5,6-tetrafluorophthalimides

Process for the manufacture of 2,2'-imino-bis-benzothiazole compounds