Trisazo-dyestuffs

Details Trisazo-dyestuffs Trisazo-dyestuffs

2004-11-18

2009-12-29

Sullivan, Daniel M (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Diazoamino

Reexamination Certificate

active

07638609

ABSTRACT:
A compound of Formula (1) or salt thereof:wherein:A is optionally substituted phenyl or naphthyl;B is optionally substituted phenylene or naphthylene;n is 0 or 1; andD is a pyrazolyl group,with the proviso that when A is an optionally substituted phenyl group and B is a phenylene group of Formula T,whereinRa is OH or a C1-4-alkoxy group; andRb is H or a C1-4-alkyl group, hydroxy group, C1-4-alkoxy group, C1-3-dialkyamino group or a group of the formula NHCORc (wherein Rc is C1-3-alkyl or an amino group); and* shows the point of attachment to the azo linkages on B in Formula (1);A is free from nitro groups.Also, claimed are compounds, compositions and ink-jet cartridges for use in an ink-jet printer and substrate printed with an ink-jet printer.

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CA PLUS abstract of JP01135880 May 29, 1989.

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