Claims
- 1. A mixture consisting essentially of a disazo compound which is substituted with an average of x (N-substituted sulfonamido) groups per molecule wherein said disazo compound is of the formula ##STR25## in which x represents a number from 1 to 4, and
- R.sup.1 represents a moiety selected from the group consisting of alkylene-NH-alkylene-NH.sub.2, alkylene-N-(non-tertiary C.sub.1 to C.sub.4 alkyl).sub.2, ##STR26## in which alkylene represents --CH.sub.2 CH.sub.2 -- and --CH.sub.2 CH.sub.2 CH.sub.2 --; or
- the acid-addition salt forms of said disazo compounds.
- 2. The mixture according to claim 1, where, in the disazo compound R.sup.1 is --(CH.sub.2).sub.3 N(CH.sub.3).sub.2.
CROSS REFERENCE TO RELATED APPLICATION
This application is a division of co-pending application Ser. No. 195,118, filed Oct. 8, 1980, and now U.S. Pat. No. 4,379,089.
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1904820 |
Brightman |
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2863875 |
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FRX |
Divisions (1)
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Number |
Date |
Country |
Parent |
195118 |
Oct 1980 |
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