Back to results
US 3,956,324 AGranted
Anthraquinone dyestuffs
AssigneeCiba-Geigy Corporation
InventorMax Jost
Life of this patent
Estimating the term…
Abstract
Anthraquinone dyestuffs of the formula ##SPC1## Wherein A.sub.1, A.sub.2 and A.sub.3 denote identical or different anthraquinonoid radicals, Q, X, Y and Z denote hydrogen atoms or alkyl groups with 1 to 4 carbon atoms and Z further denotes the radical A.sub.1 NH--, and the radicals A.sub.1 NH-- and A.sub.2 NH-- as well as A.sub.3 NH-- and Z, if Z denotes the radical A.sub.1 NH--, are in the m-- or p-position relative to one another which are useful for pigmenting thermoplastic polymers in the mass.
Claims3
A dyestuff of the formula ##SPC8##
- wherein one X.sub.2 is hydrogen, phenoxy, phenylmercapto, phenylamino, benzoylamino which may be substituted by chloro, methyl or methoxy, the remaining X.sub.2 is hydrogen, and Q', X' and Z' is hydrogen or methyl.
Dependencies are inferred from the claim text.