Isoindoline pigments
AssigneeCiba-Geigy Corporation
InventorJost von der Crone
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Abstract
Isoindolinone pigments of the formula ##STR1## in which R is an aryl radical which can contain groups which do not confer solubility and X is a group of the formulae ##STR2## in which Q is a radical of the formula ##STR3## in which R.sub.1 is a di- or tri-halogenophenyl radical or a carbamoylphenyl radical or a phenyl radical which is fused with a 5-membered or 6-membered hetero-ring which contains a cyclically bonded --CONH group, are useful for coloring in yellow to orange shades of good fastness properties.
Claims5
An isoindoline pigment of the formula ##STR20## wherein R is phenyl mono- or di-substituted by chlorine, bromine, methyl, methoxy, nitro, methoxycarbonyl, ethoxycarbonyl, methoxyphenylcarbamoyl, acetylaminophenylcarbamoyl or phthalimido;
- with the proviso that phenyl is mono-substituted when only chlorine or bromine is substituted thereon.
Dependencies are inferred from the claim text.