Azo-pigments and process for their preparation

Details Azo-pigments and process for their preparation Azo-pigments and process for their preparation

C - Chemistry, Metallurgy

09

B

260/172.5

C09B 29/00 (2006.01) C09B 29/20 (2006.01) C09B 43/32 (2006.01)

Patent

CA 1236092

ABSTRACT: An azo-pigment represented by the general formula: Image where R1 is a hydrogen atom, a C1-C4 alkyl group, an unsubstituted phenyl group or a substituted phenyl group, R2 is a residue of a phenylenediamine, and R3 is a hydrogen atom, a methyl group, a methoxy group or a halogen atom.

471405

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