Inventor
BERGMANN UDO
DE28 patents
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BASF AG
25 patentsUS4764600AAug 16, 1988
Isothiazolylazo dyes having aminophenyl and aminonaphthyl components
BASF AG8 citations74
US4751288AJun 14, 1988
Azo dyes containing 2-amino-3-cyano-5-formylthiophene derivatives as diazo components and substituted aniline compounds as coupling components
BASF AG7 citations74
US4668775AMay 26, 1987
α-methine substituted thiophene monoazo dye
BASF AG11 citations74
US4619992AOct 28, 1986
3-(β-aminoethyl)-4-cyano-isothiazolylazo dyes
BASF AG14 citations74
US4537597AAug 27, 1985
Navy blue mixtures of disperse mono-azo dyes for cellulose acetate
BASF AG7 citations73
US4405330ASep 20, 1983
Navy disperse dye mixtures
BASF AG14 citations73
US5536842AJul 16, 1996
Purification of indigo
BASF AG8 citations72
US5424453AJun 13, 1995
Purification of indigo
BASF AG10 citations72
US4820809AApr 11, 1989
Heterocyclic azo dyes
BASF AG3 citations63
US4638055AJan 20, 1987
Iron, copper and chromium complexes of disazo dyes
BASF AG3 citations63
US4547566AOct 15, 1985
Copper, cobalt, nickel and iron complexes of disazo dyes
BASF AG4 citations63
US4496480AJan 29, 1985
Isothiazolazo dyes having coupling components which are free from unsaturated aliphatic radicals
BASF AG5 citations63
US4563520AJan 7, 1986
Metal complexes of dis- or trisazo compounds containing a middle component twice substituted by hydroxy and/or amino
BASF AG4 citations62
US4491543AJan 1, 1985
Dis-, tris-, and tetrakisazo compounds containing resorcinol, sulfonylamino, and two or three sulfonic acid groups
BASF AG4 citations62
US4389216AJun 21, 1983
Navy dye mixtures
BASF AG6 citations62
US4386934AJun 7, 1983
Navy dye mixtures
BASF AG4 citations62
US5554774ASep 10, 1996
Preparation of chlorinated violanthrones or isoviolanthrones
BASF AG4 citations61
US4960874AOct 2, 1990
Isothiazolylazo dyes having aminophenyl and aminonaphthyl components
BASF AG5 citations59
US5245058ASep 14, 1993
Preparation of 1-nitroanthraquinone-2-carboxylic acids
BASF AG0 citations52
US5534627AJul 9, 1996
Polycyclic vat dyes
BASF AG0 citations51
US5525743AJun 11, 1996
Preparation of anthraquinone imide compounds
BASF AG0 citations51
US5380871AJan 10, 1995
Preparation of halogenated indigo
BASF AG1 citations51
US4486198ADec 4, 1984
Navy dye mixtures
BASF AG1 citations51
US5003049AMar 26, 1991
Dyes containing fluorotriazine and dichloropyridazone groups
BASF AG1 citations50
US5386042AJan 31, 1995
Preparation of 1,4-diaminoanthraquinone-2,3-disulfonic acid and 1,4-diaminoanthraquinone-2,3-dinitrile
BASF AG1 citations48