P

Inventor

BUEHLER ULRICH

DE57 patents
⚠️ This page may combine multiple inventors who share the name “BUEHLER ULRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CASSELLA FARBWERKE MAINKUR AG

33 patents
US4325870AApr 20, 1982

Process for the preparation of 2,6-diaminopyridine-azo dyestuffs and of their precursors

CASSELLA FARBWERKE MAINKUR AG25 citations82
US4417897ANov 29, 1983

Process for preparing burn-out effects on textile materials

CASSELLA FARBWERKE MAINKUR AG23 citations80
US5071443ADec 10, 1991

Blue azo dyestuff mixture for strong blue color on hydrophobic fibers

CASSELLA FARBWERKE MAINKUR AG8 citations73
US4430090AFeb 7, 1984

Process for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings with cyano-nitro-amino-azo dyes

CASSELLA FARBWERKE MAINKUR AG8 citations73
US4406661ASep 27, 1983

Process for dyeing and printing synthetic, hydrophobic fibre material with dischargeable azo disperse dye

CASSELLA FARBWERKE MAINKUR AG11 citations73
US4937325AJun 26, 1990

Process for dyeing and printing synthetic fibers with mixtures of monoazo dyestuffs

CASSELLA FARBWERKE MAINKUR AG7 citations72
US4386935AJun 7, 1983

Process for producing discharge reserve prints on textile materials with amino-azo-benzene dyes

CASSELLA FARBWERKE MAINKUR AG8 citations72
US5174792ADec 29, 1992

Mixtures of monoazo dyes: dicyano-nitrobenzene azo compounds

CASSELLA FARBWERKE MAINKUR AG7 citations71
US4582509AApr 15, 1986

Mixtures of monoazo dyestuffs

CASSELLA FARBWERKE MAINKUR AG7 citations71
US4421516ADec 20, 1983

Process for preparing discharge resist prints on hydrophobic textile materials

CASSELLA FARBWERKE MAINKUR AG7 citations71
US4420308ADec 13, 1983

Process for the production of reserve effects on polyester textiles and polyester/cellulose mixed fibre textiles: discharge printing with disperse azo dye with alkyl or alkoxy carbonyl, cyand and hydroxy phenyl group

CASSELLA FARBWERKE MAINKUR AG8 citations71
US4795807AJan 3, 1989

Preparation of azo dyestuffs by diazotization and coupling in the presence of an ester

CASSELLA FARBWERKE MAINKUR AG13 citations70
US4381262AApr 26, 1983

Water-insoluble azo dyestuffs, their manufacture and their use

CASSELLA FARBWERKE MAINKUR AG7 citations70
US4812143AMar 14, 1989

Liquid formulations of disperse dyestuffs containing inorganic oxides or silicates for dyeing textile materials

CASSELLA FARBWERKE MAINKUR AG4 citations63
US4225716ASep 30, 1980

Process for the manufacture of 2,6-dichloropyridine derivatives

CASSELLA FARBWERKE MAINKUR AG4 citations63
US5466791ANov 14, 1995

Monoazo dyes, their preparation and use

CASSELLA FARBWERKE MAINKUR AG3 citations62
US5174791ADec 29, 1992

Process for dyeing and printing blend fabrics of polyester and natural fibre materials with disperse dye and polyether-polyester to inhibit soilins with disperse dye

CASSELLA FARBWERKE MAINKUR AG3 citations62
US4950305AAug 21, 1990

Water-insoluble monoazo dyes, their preparation and use, and mixtures of these monoazo dyes

CASSELLA FARBWERKE MAINKUR AG4 citations62
US4851012AJul 25, 1989

Mixtures of blue disperse monoazo dyestuffs

CASSELLA FARBWERKE MAINKUR AG3 citations62
US4802889AFeb 7, 1989

2-cyano-4,6-dinitrophenyl mono-azo dyes for polyester and cellulose acetate

CASSELLA FARBWERKE MAINKUR AG4 citations62
US4772292ASep 20, 1988

Mixture of yellow disperse dyestuffs containing pyridone disazo dye

CASSELLA FARBWERKE MAINKUR AG7 citations62
US4769449ASep 6, 1988

Red mono-azo water-soluble dye containing cyano, amide and amino substituents

CASSELLA FARBWERKE MAINKUR AG1 citations62
US4567252AJan 28, 1986

Water-insoluble naphthol monoazo dyestuff

CASSELLA FARBWERKE MAINKUR AG5 citations62
US4398913AAug 16, 1983

Process for producing discharge reserve prints on textile materials

CASSELLA FARBWERKE MAINKUR AG2 citations61
US4985043AJan 15, 1991

Mixtures of monoazo dyes containing halogen and cyano substituents

CASSELLA FARBWERKE MAINKUR AG5 citations60
US4552953ANov 12, 1985

Water-insoluble monoazo dyestuffs, their preparation and their use

CASSELLA FARBWERKE MAINKUR AG2 citations60
US5093307AMar 3, 1992

Use of water-insoluble monoazo dyes of the formula i

CASSELLA FARBWERKE MAINKUR AG4 citations58
US4431585AFeb 14, 1984

Water-insoluble azo dyestuffs, processes for their manufacture and their use for dyeing and printing synthetic hydrophobic fiber material

CASSELLA FARBWERKE MAINKUR AG6 citations58
US4472307ASep 18, 1984

Preparation of anilino azo carbazole dyestuffs prepared by diazotization by nitrosylsulphuric acid in acetic acid

CASSELLA FARBWERKE MAINKUR AG5 citations57
US5216140AJun 1, 1993

Monoazo dye and preparation and use thereof

CASSELLA FARBWERKE MAINKUR AG0 citations52
US4985045AJan 15, 1991

Mixtures of mon-azo dyestuffs for dyeing and printing hydrophobic synthetic fiber materials

CASSELLA FARBWERKE MAINKUR AG0 citations52
US4505856AMar 19, 1985

Azo dyestuff dischargeable to white

CASSELLA FARBWERKE MAINKUR AG1 citations52
US5160495ANov 3, 1992

2-cyano-4,6-dimitro-phenyl monoazo dyestuffs

CASSELLA FARBWERKE MAINKUR AG1 citations51

HOECHST MITSUBISHI KASEI

6 patents

DYSTAR JAPAN LTD

4 patents

CASSELLA AG

3 patents

BAYER AG

1 patent

HOECHST AG

1 patent

HOECHST MITSUBISHI KASEI COMPA

1 patent

BUEHLER ULRICH

1 patent

Showing the top 50 of 57 patents by PatentIndex Score.