C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 29/12 (2006.01) C09B 67/22 (2006.01)
Patent
CA 2271817
The invention is a composition of matter useful as an acid yellow dye having formula (I) wherein: X is hydrogen or SO3-M+; M+ Na+, Li+, K+, NH4+, or hydroxyalkylammonium of the formula [H-(OCH2CH2)n]p NHm, where n is 1 to 5, p is 1 to 3, and p + m is 4; R1 is hydrogen, a metal ion, an alkyl or C1-4, of hydroxyalkyl of C1-4, and combinations thereof; and R2 is an unsubstituted aromatic ring or a substituted aromatic ring having at least one substituent, provided that when one of the substituents is SO3-M+, X is hydrogen; and combinations thereof. The invention also includes a process for dyeing a material with this compound and the material so dyed.
L'invention concerne une composition d'une substance utile comme pigment jaune acide, de formule générale (I), dans laquelle X est hydrogène ou SO¿3??-¿M?+¿; M?+¿ est Na?+¿, Li?+¿, K?+¿, NH¿4??+¿ ou hydroxyalkylammonium de formule [H-(OCH¿2?CH¿2?)¿n?]¿p? NH¿m?, où n est compris entre 1 et 5, p est compris entre 1 et 3, et p+m est 4; R¿1? est hydrogène, un ion métallique, alkyle C¿1?-C¿4? ou hydroxyalkyle C¿1?-C¿4? et leurs combinaisons; et R¿2? est un noyau aromatique non substitué ou un noyau aromatique substitué comportant au moins un substituant, à condition que quand l'un des substituants est SO¿3??-¿M?+¿, X soit hydrogène; et leurs combinaisons. L'invention concerne également un procédé permettant de teinter un matériau avec ledit composé, ainsi que le matériau ainsi teinté.
Crompton & Knowles Corporation
Gowling Lafleur Henderson Llp
Yorkshire Group Plc
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