Azo compounds, process for their preparation and their use

Details Azo compounds, process for their preparation and their use Azo compounds, process for their preparation and their use

C - Chemistry, Metallurgy

09

B

8/1, 260/171.9

C09B 29/36 (2006.01) C09B 29/20 (2006.01) D06P 1/02 (2006.01)

Patent

CA 1151159

Abstract of the Disclosure: When diazotizing lower alkyl esters of 3-nitro-4-amino- benzoic acid and coupling them onto 5-(2'-hydroxy-3'- naphthoylamino)-benzimidazolone-(2) which may be substituted in 6'-position by chlorine or bromine, in 1-position by methyl or ethyl and in the benzo-nucleus by chlorine, bromine, methyl, ethyl, methoxy or ethoxy, colorants are obtained which are especially useful for pimenting plastics, spinning masses, printing inks, varnishes and paints. The dyeings obtained therewith are fast to light, weathering, solvents and migration, especially fast to overvarnishing and bleeding.

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