Polyaminomethylated monoazo and disazo colorants
AssigneeSterling Drug Inc.
InventorsPatrick J. Jefferies, Nicholas A. Ambrosiano
Life of this patent
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Abstract
Novel mixtures, which consist essentially of a monoazo compound selected from the group of 1-phenylazo-2-hydroxynaphthalenes or of a disazo compound selected from the group of various bis-phenyl and bridged bis-phenyl diamines diazotized and coupled to .beta.-naphthols, acetoacetanilides or 1-phenyl-3-methyl-5-pyrazolones and N,N'-bis(4-phenylazo-3-hydroxy-2-naphthocarbonyl)diaminoethanes multiply and randomly substituted with an average of one to eight aminomethyl groups per molecule or the acid-addition salts thereof, obtained by polyaminomethylating monoazo or disazo compounds, are useful for coloring natural fibers, synthetic fiber-forming material and cellulosic materials as well as in the manufacture of paper, varnishes, inks, coatings and plastics.
Claims46
A mixture consisting essentially of a disazo compound which is polyaminomethylated with an average of x aminomethyl groups per molecule wherein said disazo compound is selected from the group consisting of ##STR30## in which x represents a number from one to eight,
- Y represents a moiety selected from the class having the formulas ##STR31## R represents hydrogen, C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkoxy or N-phenylsulfamoyl,
- R.sup.1 represents hydrogen, C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkoxy, halo, N-phenylsulfamoyl or 6-methylbenzothiazol-2-yl,
- R.sup.2, r.sup.3, r.sup.6, r.sup.7, r.sup.8, r.sup.10, r.sup.11 and R.sup.12 represent hydrogen, C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkoxy or halo,
- R.sup.4 represents hydrogen, C.sub.1 to C.sub.3 alkyl or C.sub.1 to C.sub.3 alkoxy,
- R.sup.5 represents hydrogen or a moiety selected from ##STR32## and ##STR33## and R.sup.9 represents hydrogen or C.sub.1 to C.sub.3 alkyl;
- or the acid-addition salt forms of said mixtures.
A mixture consisting essentially of a monoazo compound polyaminomethylated with an average of x' aminomethyl groups per molecule wherein said monoazo compound is of the formula ##STR50## in which x' represents a number from 1.3 to 6;
- R represents hydrogen, C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkoxy or N-phenylsulfamoyl;
- R.sup.1 represents hydrogen, C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkoxy, halo, N-phenylsulfamoyl or 6-methylbenzothiazol-2-yl;
- R.sup.2, r.sup.10, r.sup.11 and R.sup.12 represent hydrogen, C.sub.1 to C.sub.3 alkyl, C.sub.1 to C.sub.3 alkoxy or halo;
- and
- R.sup.5 represents hydrogen or a moiety selected from the class having the formulas ##STR51## or the acid-additon salt forms of said mixtures with the proviso that said aminomethyl groups are present in both the azo portion and the coupling component portion of said monoazo compounds.
Dependencies are inferred from the claim text.