Process for the mass coloration of polymers
AssigneeCiba-Geigy Corporation
InventorArnold Wick
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Abstract
Compounds of the formula ##STR1## wherein the symbols D is the radical of a carbocyclic or heterocyclic diazo component, X is hydrogen, halogen, methyl or methoxy, each of A.sub.1 and A.sub.2 independently of the other is unsubstituted phenyl or phenyl which is substituted by halogen, C.sub.1 -C.sub.4 alkyl, methoxy, ethoxy, phenyl or phenoxy, are suitable for the mass coloration of organic polymers.
Claims9
A process for the mass coloration of organic polymers, which process comprises incorporating into said polymer in the melt an azo compound of the formula I ##STR11## wherein d is the radical of a carbocyclic aromatic or heterocyclic aromatic diazo component, X is hydrogen, halogen, methyl or methoxy, and each of A.sub.1 and A.sub.2 independently of the other is C.sub.1 -C.sub.6 alkyl, phenyl or phenyl which is substituted by halogen, C.sub.1 -C.sub.4 alkyl, methoxy, ethoxy, phenyl or phenoxy.
Dependencies are inferred from the claim text.