Yellow anionic disazo dyes

Details Yellow anionic disazo dyes Yellow anionic disazo dyes

C - Chemistry, Metallurgy

09

B

C09B 35/28 (2006.01) C07C 309/29 (2006.01) C07C 309/51 (2006.01) C09B 35/023 (2006.01) C09B 35/03 (2006.01) C09B 35/033 (2006.01) D21H 21/28 (2006.01)

Patent

CA 2488406

The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.

L'invention se rapporte à de nouveaux colorants anioniques jaunes, à leur procédé de préparation, à certains nouveaux produits intermédiaires nécessaires à leur préparation, ainsi qu'à leur utilisation pour teindre des matériaux naturels ou synthétiques, en particulier du papier.

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