http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0971003-A1

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http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-328
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filingDate 1999-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e2b6ed0cc842e2bec1faaf5ba6720c9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02d71e803694003b6c7e71505ccef88f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7de9a78085c8875ef9ca3f60865e6012
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e90d8aadfcb07afd7ad0a844de56c12f
publicationDate 2000-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber EP-0971003-A1
titleOfInvention Water soluble black stilbene dyes, their preparation and use
abstract R 1 Wasserstoff, Alkyl mit 1 bis 4 C-Atomen, Alkoxy mit 1 bis 4 C-Atomen; R 2 Wasserstoff, Carboxy, Chlor, Nitro; R 21 Wasserstoff; oder R 2 und R 21 bilden gemeinsam einen in 3- und 4-Position desnRinges A ankondensierten Benzolring, der 1, 2 oder 3 Sulfogruppen tragen kann; m eine Zahl von 0 bis 1; n eine Zahl von 1 bis 2; M + ein Kation oder ein Gemisch verschiedener Kationen bedeuten, wobei pro Molndes Farbstoffs mindestens 1 Äquivalent der Kationen M + Lithium-Kationen und/odernKationen der Formel (II) sindn wobei p eine Zahl von 1 bis 30; X   CH 2 CH 2 , CH(CH 3 )CH 2 , CH 2 CH(CH 3 ) oder eine Kombination davon; und R 3 , R 4 und R 5 unabhängig voneinander Wasserstoff, eine Gruppe dernFormel (III)n -(-X-O-) p H oder einen aliphatischen Rest mit 1 bis 18 C-Atomen bedeuten. nFarbstoffe der Formel (I) sind besonders als Farbmittel in Ink-Jet-Tinten geeignet.The invention relates to a dye wherein R 1 is hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms; R 2 is hydrogen, carboxy, chlorine, nitro; R 21 is hydrogen; or R 2 and R 21 together form a benzene ring fused in the 3- and 4-position of ring A, which can carry 1, 2 or 3 sulfo groups; m is a number from 0 to 1; n is a number from 1 to 2; M + is a cation or a mixture of different cations, with at least 1 equivalent of the cations M + being lithium cations and / or cations of the formula (II) per mole of the dye where p is a number from 1 to 30; X CH 2 CH 2 , CH (CH 3 ) CH 2 , CH 2 CH (CH 3 ), or a combination thereof; and R 3 , R 4 and R 5 independently of one another are hydrogen, a group of the formula (III) - (- XO-) p H or an aliphatic radical having 1 to 18 carbon atoms. Dyes of the formula (I) are particularly suitable as colorants in ink-jet inks.
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priorityDate 1998-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date>
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