Process for producing azo pigments

Details Process for producing azo pigments Process for producing azo pigments

C - Chemistry, Metallurgy

09

B

260/175.4

C09B 29/15 (2006.01) C09B 67/22 (2006.01)

Patent

CA 1236093

Abstract of the Disclosure A process for producing an azo pigment, which comprises coupling an aromatic diazonium compound with 3-hydroxy-2-naphthoic acid and at least one bis-naphthyl- methane, and optionally, laking the resulting pigment.

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