Methyl or methoxy substituted iminoisoindolinone pigments

Details Methyl or methoxy substituted iminoisoindolinone pigments Methyl or methoxy substituted iminoisoindolinone pigments

1976-03-03

1977-08-23

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260165, C09B 4300

Patent

active

040439992

ABSTRACT:
Iminoisoindolinone dyestuffs of the formula ##STR1## wherein X denotes chlorine or bromine atoms, X.sub.1 denotes a halogen atom or an alkyl, alkoxy, nitrile, trifluoromethyl or alkylsulphonyl group, Y.sub.1 denotes a hydrogen or halogen atom or an alkyl or alkoxy group, X.sub.2 denotes a hydrogen or halogen atom or an alkyl or alkoxy group and Y.sub.2 denotes a hydrogen or halogen atom or an alkyl or alkoxy group, or the radicals X.sub.2 and Y.sub.2 together form a fused benzene ring, and wherein, in the benzene rings A and B, a hydrogen atom is present in at least one o-position relative to the azomethine group were prepared. The dyestuffs may be used for pigmenting high molecular weight organic materials such as cellulose ethers, polyamides and polyesters. The pigments have outstanding fastness to light, migration and weathering.

REFERENCES:
patent: 2973358 (1961-02-01), Pugin

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