Fluid formulations of oxidation dyes for mineral oil products, fats and waxes
AssigneeBASF SE
InventorsGuenter Hansen, Hans J. Kolbinger, Rudolf Senninger, Georg Zeidler
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Abstract
Fluid formulations of oxidation dyes, which are obtained by oxidizing a compound of the general formula I ##STR1## where R.sup.1 is unsubstituted or hydroxy-, C.sub.1 -C.sub.8 -alkoxy- or C.sub.1 -C.sub.8 -alkanoyloxy-substituted C.sub.2 -C.sub.13 -alkyl, R.sup.2 is hydrogen or unsubstituted or hydroxy- or C.sub.1 -C.sub.8 -alkoxy-substituted C.sub.1 -C.sub.13 -alkyl and X is hydroxyl, amino or ##STR2## in an organic solvent, are particularly suitable for dyeing mineral oil products, fats and waxes.
Claims7
A fluid formulation of an oxidation dye which is obtained by oxidizing a compound selected from the group consisting of:
- ##STR17## wherein R.sub.1 is unsubstituted or hydroxy-, C.sub.1 -C.sub.8 -alkoxy-, or C.sub.1 -C.sub.8 -alkanoyloxy-substituted C.sub.2 -C.sub.13 -alkyl,
- R.sub.2 is hydrogen or unsubstituted or hydroxy- or C.sub.1 -C.sub.8 -alkoxy-substituted C.sub.1 -C.sub.13 -alkyl,
- R.sup.3 is selected from the group consisting of ##STR18## and CH.sub.2 CH.sub.2 OCOC.sub.7 H.sub.15 ;
- and X is hydroxy or ##STR19## with air in an organic solvent containing an iron tetraaza(14)annulene catalyst.
In a method of dyeing mineral oil products, fats and waxes, the improvement which comprises using a fluid formulation of an oxidation dye which is obtained by oxidizing a compound of the formula:
- ##STR20## where R.sub.1 is unsubstituted or hydroxy-, C.sub.1 -C.sub.8 -alkoxy-, or C.sub.1 -C.sub.8 -alkanoyloxy-substituted C.sub.2 -C.sub.13 -alkyl,
- R.sub.2 is hydrogen or unsubstituted or hydroxy- or C.sub.1 -C.sub.8 -alkoxy-substituted C.sub.1 -C.sub.13 -alkyl and
- Y is hydroxyl, amino, or NR.sub.1 R.sub.2,
- with air in an organic solvent containing an iron tetraaza(14)annulene catalyst.
Dependencies are inferred from the claim text.