Inventor
MOSER HELMUT A
CH12 patents
Patents
12 patentsUS5227477AJul 13, 1993
Dyes having one or two 2,4- or 4,6-dichloro-5-cyanopyrimidyl groups linked through bridging radicals containing at least two nitrogen atoms to chloro-1,3,5-triazinyl groups
SANDOZ LTD57 citations94
US5037964AAug 6, 1991
Metal-free sulfo group-free basis disazo and trisazo compounds containing two different 6-hydroxypyrid-2-one coupling component radicals
SANDOZ LTD23 citations92
US5352334AOct 4, 1994
The use of metal-free sulfo group free basic disazo compounds containing two identical 6-hydroxypyrid-2-one coupling component radicals for producing colored paper
SANDOZ LTD20 citations83
US5126443AJun 30, 1992
Phthalocyanine azo dyes containing 5-cyano-dichloropyrimidyl group
SANDOZ LTD9 citations73
US5084068AJan 28, 1992
Dyes containing two phthalocyanine groups linked by a radical containing two quaternized nitrogen atoms
SANDOZ LTD8 citations73
US5001226AMar 19, 1991
Metal-free disazo and polyazo compounds having at least one 6-hydroxypyrid-2-one coupling component radical linked to a 1-amino- or hydroxy-3-amino- or hydroxybenzene coupling component radical and metal complexes thereof
SANDOZ LTD9 citations73
US4900812AFeb 13, 1990
Sulfo group-containing metal phlhalocyanine azo compound having a 6-hydroxypyrid-2-one coupling component radicals having a fiber-reactive group
SANDOZ LTD10 citations73
US5545724AAug 13, 1996
Cationically bridged tetrakisazo dyestuffs with variable couplers, their production and use
SANDOZ LTD8 citations72
US5527886AJun 18, 1996
Dyes containing 5-cyano-2,4 or 4,6-dichloropyrimidyl fiber-reactive groups
SANDOZ LTD9 citations72
US5077396ADec 31, 1991
Azo compounds containing two 6-hydroxypyrid-2-one coupling component radicals the nitrogen atoms of which are linked by a biscationic radical
SANDOZ LTD4 citations62
US5059683AOct 22, 1991
Dyes containing 6-hydroxypyrid-2-one groups the 1-positions of which contain substituted 1,3,5-triazinyl or pyrimidyl-piperazino or -piperazinium groups linked through bridging radicals and intermediates therefor
SANDOZ LTD3 citations62
US4840642AJun 20, 1989
Monoazo compounds having a 6-(5'-chloro-2',4'-difluoropyrimid-6'-ylamino)-1-hydroxy-3-sulfonaphthalene group and their use as dyes
SANDOZ LTD3 citations59