Azo dyes

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C - Chemistry, Metallurgy

09

B

C09B 29/42 (2006.01) C08K 5/00 (2006.01) C08K 5/3432 (2006.01) G02B 5/22 (2006.01) G03F 7/00 (2006.01)

Patent

CA 2476591

The present invention relates to an azo dye of formula (I) wherein R1 and R2 are each independently of the other -NH-(CH2CH2)-OH, -NH-CH2-CHOH-CH2-OH, -NH- (CH2CH2)-S-(CH2CH2)-OH, -NH-(CH2CH2)-NH-(CH2CH2)-OH, NH-CH2CH2-CON(CH2CH2OH)2, R3 is -CN or -CONH2, R4 is methyl or trifluoromethyl, R5 is -CF3, -COOC2H5, R6 is hydrogen or chlorine and R7 is hydrogen, chlorine, bromine or -NO2, to a process for the preparation thereof and to the use thereof in a method of producing mass-coloured plastics or polymeric colour particles.

CETTE INVENTION A TRAIT A UN COLORANT AZOIQUE CORRESPONDANT A LA FORMULE (I) AINSI QU'A SON PROCEDE DE PRODUCTION ET A L'USAGE QUI EN EST FAIT DANS UN PROCEDE DE PRODUCTION DE PLASTIQUES TEINTES DANS LA MASSE OU DE PARTICULES POLYMERES COLOREES. DANS CETTE FORMULE, R¿1? ET R¿2? REPRESENTENT, DE MANIERE INDEPENDANTE, -NH-(CH¿2?CH¿2?)-OH, -NH-CH¿2?-CHOH-CH¿2?-OH, -NH-(CH¿2?CH¿2?)-S-(CH¿2?CH¿2?)-OH, -NH-(CH¿2?CH¿2?)-NH-(CH¿2?CH¿2?)-OH, NH-CH¿2?CH¿2?-CON(CH¿2?CH¿2?OH)¿2?, R¿3? REPRESENTE -CN OU -CONH¿2?, R¿4? REPRESENTE UN METHYLE OU TRIFLUOROMETHYLE, R¿5? REPRESENTE -CF¿3?, -COOC¿2?H¿5?, R¿6? REPRESENTE UN HYDROGENE OU UN CHLORE ET R¿7? REPRESENTE UN HYDROGENE, UN CHLORE, UN BROME OU -NO¿2?.

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