Inventor
SCHLAEFER LUDWIG
DE23 patents
Patents
23 patentsUS5250670AOct 5, 1993
Water-soluble monoazo compounds containing fiber-reactive groups of vinyl sulfone series as well as triazinyl radical, and process for dyeing with same
HOECHST AG10 citations74
US4707545ANov 17, 1987
Process for the preparation of lithium salts of anionic dyes by reacting the calcium salts with lithium sulfate or lithium hydrogen sulfate
HOECHST AG8 citations74
US5175263ADec 29, 1992
Water-soluble azo compounds, having a fiber-reactive group of the vinylsulfone series in the diazo component and having a phenoxy- or aralkyloxy-substituted chloro-s-triazinylamino-naphthol sulfonic acid coupling component, suitable as dyestuffs
HOECHST AG10 citations73
US5003053AMar 26, 1991
Water-soluble monoazo compounds containing a p-aminophenylamino- and chloro- or fluoro-substituted triazinylamino group and a fiber-reactive group selected from the vinylsulfone series, suitable as dyestuffs
HOECHST AG13 citations73
US4898933AFeb 6, 1990
Water-soluble fiber-reactive aminotriazine and vinylsulfone containing azo dyestuffs having carboxy- or carbamoyl pyridinium groups
HOECHST AG14 citations73
US4806127AFeb 21, 1989
Water-soluble disazo compounds, containing triazinyl pyridinium group processes for their preparation and their use for dyeing cellulose
HOECHST AG8 citations73
US4762916AAug 9, 1988
Water-soluble dis-, tris- and tetra-azo compounds containing fiber-reactive chloro-and fluro-triazinyl groups and vinylsulfone groups or derivatives thereof, suitable as dyestuffs
HOECHST AG7 citations73
US4703112AOct 27, 1987
Water-soluble benzothiazole-azo- and phenyl-azo-compounds containing a 2-sulfo-5-acylamino-aniline coupling component, suitable as fibre-reactive dyestuffs
HOECHST AG18 citations73
US4564672AJan 14, 1986
Water-soluble monoazo and disazo compounds containing a fibre-reactive 2-alkoxy-5-chloro-aniline diazo component and copper complexes thereof, useful as dyestuffs
HOECHST AG9 citations73
US4473498ASep 25, 1984
Water-soluble, fiber-reactive organic dyestuffs containing a β-chloro-ethylsulfonyl-methyl-benzoic acid amide group
HOECHST AG8 citations73
US4415333ANov 15, 1983
Solid compositions of water-soluble fiber-reactive dyestuffs and dialkylnaphthalene sulfonic acid and formaldehye condensate
HOECHST AG15 citations73
US5292871AMar 8, 1994
Water-soluble compounds having a fiber-reactive group of the vinyl sulfone monoazo series bonded to an alkanoylamino of benzoylamino grouping, suitable as dyestuffs
HOECHST AG5 citations63
US5070189ADec 3, 1991
Water-soluble azo compounds containing a sulfo-naphthol as a coupling component and having fiber-reactive groups of the vinylsulfone series, suitable as dyestuffs
HOECHST AG3 citations63
US4975539ADec 4, 1990
Water-soluble monoazo compounds having fiber-reactive groups of the vinylsulfone series and a sulfo-substituted benzoylamino naphthol coupling component, suitable as dyestuffs
HOECHST AG5 citations63
US4960872AOct 2, 1990
Water-soluble monoazopyrazolone dyestuffs having fiber reactive groups of the vinylsulfone series
HOECHST AG6 citations62
US4861344AAug 29, 1989
Reactive water-soluble azo dyes containing carboxy- or carbamoyl-pydridinium groups for dyeing textiles
HOECHST AG6 citations62
US4845202AJul 4, 1989
Water-soluble disazo compounds containing 3-carboxy or 3-carbamoylpyridium-s-triazinyl groups and fiber-reactive groups of the vinyl sulfone series suitable as dyestuffs
HOECHST AG3 citations62
US4818814AApr 4, 1989
Water-soluble disazo compounds containing the 1-amino-8-hydroxy-3,6-disulfo-naphthalene moiety as a bivalent coupling component and an aniline or naphthylamine compound having a fiber-reactive group, and a 2-sulfo-5-acylamino-aniline
HOECHST AG6 citations62
US4808193AFeb 28, 1989
Process for dyeing hydroxy-containing fiber material with water-soluble dis-azo reactive dye compound
HOECHST AG3 citations62
US4719053AJan 12, 1988
Beta-chloroethylsulfonylmethyl-benzoic halides as intermediates
HOECHST AG3 citations62
US4963661AOct 16, 1990
Water soluble naphthylazopyrazolone dyestuffs having fiber-reactive groups of the vinylsulfone series
HOECHST AG4 citations61
US5102993AApr 7, 1992
Water-soluble disazo compounds, having a fiber-reactive group of the vinylsulfone series, suitable as dyestuffs
HOECHST AG1 citations52
US5055565AOct 8, 1991
Water-soluble disazo compounds, containing a vinylsulfonyl or β-chloroethylsulfonyl grouping bonded directly or via a methylene group or a lower alkyl amino group to a benzoylamino group, suitable as dyestuffs
HOECHST AG1 citations51