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US 4,049,643 AGranted
Phenylazo compounds from cyclohexylaminoacylanilides
AssigneeEastman Kodak Company
InventorsMax A. Weaver, James M. Straley, William H. Moore
Life of this patent
Estimating the term…
Abstract
Substituted phenylazo compounds having a cyclohexylaminoacylanilide coupling component are useful as dyes for polyester textile materials on which the compounds exhibit improved dyeability, fastness to light, resistance to sublimation and improved brightness.
Claims8
A water-insoluble azo compound having the formula ##STR9## wherein A is formyl;
- lower alkanoyl;
- lower alkanoyl substituted with chlorine, bromine, cyano, lower alkoxy, hydroxy, lower alkylsulfonyl, phenyl, lower alkylphenyl, lower alkoxyphenyl or halophenyl;
- benzoyl;
- benzoyl substituted with lower alkyl, lower alkoxy, chlorine or bromine;
- cyclohexylcarbonyl;
- lower alkoxycarbonyl;
- lower alkoxycarbonyl substituted with hydroxy or cyano;
- R.sup.1 is hydrogen, lower alkyl, or lower alkoxy;
- R.sup.2 is hydrogen, lower alkyl;
- or lower alkyl substituted with cyano, lower alkanoyloxy, or cyclohexyl;
- R.sup.3 is lower alkyl and
- n is 0, 1, 2 or 3;
- R.sup.4 is hydrogen, chlorine, bromine, cyano, lower alkanoyl, lower alkoxycarbonyl, lower alkylsulfonyl or trifluoromethyl;
- R.sup.5 is nitro, lower alkylsulfonyl, thiocyanato, or sulfamoyl;
- and
- R.sup.6 is hydrogen, chlorine, bromine, formyl, lower alkanoyl, lower alkoxycarbonyl, trifluoromethyl, lower alkylsulfonyl, sulfamoyl, carbamoyl, cyano, or nitro.
13 more elements
Dependencies are inferred from the claim text.