Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-03-27
1977-02-08
Daus, Donald G.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260281S, 260281N, 260281H, 260282, 260268PC, 260268TR, C07D47106
Patent
active
040071804
ABSTRACT:
Dyestuffs consisting of the mixture of isomers of the formulae ##STR1## wherein R.sub.1 is hydrogen, alkyl with 1 to 20 carbon atoms, alkoxyalkyl or alkoxycarbonyl each with up to 4 carbon atoms, benzyl, alkoxycarbonyl with up to 20 carbon atoms or phenyl, R.sub.2 is alkoxycarbonyl with up to 20 carbon atoms, cyano, alcanoyl, alkoxyalkoxycarbonyl each with up to 4 carbon atoms, carbonamido, phenylcarbonamido, mono- or dialkylcarbonamido with up to 8 carbon atoms or cyclohexylcarbonamido, R.sub.3 and R.sub.4 are identical and are hydrogen or alkoxy with 1 to 4 carbon atom atoms or R.sub.3 is alkoxy with 1 to 4 carbon atoms and R.sub.4 is hydrogen and R is phenylthio which may be substituted by one or two chlorine or bromine atoms, alkyl, alkoxy, carbalkoxy, alkylsulfonyl groups and with up to 4 carbon atoms or a cyano, trifluoromethyl or nitro group; naphthylthio, pyridinethio, benzimidazolyl-2-thio, benzoxazolyl-2-thio, benzthiazolyl-2-thio or an amino group of the formula ##STR2## wherein R.sub.5 and R.sub.6 are hydrogen, alkyl or hydroxyalkyl with 1 to 4 carbon atoms or phenyl, or together are piperidine, morpholine or piperazine.
The new dyestuffs are very suitable for the dyeing of synthetic materials such as polyethylene-glycol terephthalate, acetyl cellulose or polyamides. They yield brilliant greenish yellow to orange red shades which have a good fastness to light and to thermofixation. They are also very suitable for the dyeing of fibre-forming polymers such as for example polyethylene-glycol terephthalate in the mass. Furthermore, a big part of the dyestuffs can be used for dyeing synthetic fibre materials such as polyester fibers from organic solvents, for example perchloroethylene.
REFERENCES:
patent: 3558617 (1971-01-01), Sureau et al.
patent: 3589677 (1971-06-01), Sureau et al.
Daus Donald G.
Hoechst Aktiengesellschaft
Vaughn Mary C.
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