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US 5,180,817 AGranted
Trisazo compounds and use thereof
AssigneeSumitomo Chemical Company, Limited
InventorsKazuya Ogino, Kingo Akahori, Naoki Harada
Life of this patent
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Abstract
A trisazo compound represented by the following formula in the free acid form: ##STR1## wherein Q.sub.1 and Q.sub.2 independently of one another are each unsubstituted or substituted phenyl or naphthyl group and l represents 0 or 1, which is useful for dyeing fiber, paper, leather and the like having hydroxy or amido group in black color, and for use in an ink used in ink jet and the like.
Claims10
A trisazo compound represented by the following formula (I) in the free acid form:
- ##STR123## wherein Q.sub.1 and Q.sub.2 independently of one another are each unsubstituted or substituted phenyl or naphthyl group and l represents 0 or 1.
Dependencies are inferred from the claim text.