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US 4,841,034 AGranted
Water-soluble azo compounds having a triazine moiety and dyeing method therewith
AssigneeNippon Kayaku Kabushiki Kaisha
InventorsSatoshi Ototake, Ryozo Matsunaga, Masao Furusawa
Life of this patent
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Abstract
Water-soluble metallized disazo compounds which, in the free acid form, are represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 stand independently for chlorine or nitro, and X stands for phenyl which may be substituted with chlorine, methyl, lower alkoxy, hydroxyl or carboxyl, for use in dyeing.
Claims6
A water-soluble azo compound which, in the free acid form, is represented by the following formula:
- ##STR33## wherein R.sub.1 and R.sub.2 stand independently for chlorine or nitro, and X stands for phenyl which may be substituted with chlorine, methyl, lower-alkoxy or carboxyl.
Dependencies are inferred from the claim text.