Anthraquinone dyes

C - Chemistry – Metallurgy – 09 – B

Patent

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Details

C09B 1/32 (2006.01) C08K 5/00 (2006.01) C08K 5/18 (2006.01) C08K 5/375 (2006.01) C09B 1/514 (2006.01) C09B 1/60 (2006.01) G02B 5/22 (2006.01)

Patent

CA 2476886

The present invention relates to a compound of formula (I) wherein R1 is a radical of formula (II) R2 is -NH2 or a radical of formula (II), R3 and R4 are each independently of the other hydrogen, hydroxy, -NH2 or a radical of formula (II), R5 is hydrogen, halogen or -X-(CH2)n-Y, wherein X is a direct bond, -O- or -S-, Y is -OH or -OSO3H and n is a number from 0 to 6, with the proviso that at least one of the radicals R3, R4 and R5 is not hydrogen, to a process for the preparation thereof and to the use thereof in a method of producing mass-coloured plastics or polymeric colour particles.

L'invention concerne un composé de formule (I), dans laquelle R¿1? est un radical de formule (II). Dans la formule (I), R¿2? représente NH ou un radical de formule (II), R¿3? et R¿4? indépendants l'un de l'autre représentent hydrogène, hydroxy, -NH¿2? ou un radical de formule (II), R¿5? représente hydrogène, halogène ou X-(CH¿2?)¿n?-Y. Dans cette formule, X est une liaison directe, -O ou S-, Y représente OH ou -OSO¿3?H et n est un nombre compris entre 0 et 6, à condition qu'au moins un des radicaux R¿3?, R¿4? et R¿5? ne représente pas hydrogène. L'invention concerne également un procédé de préparation dudit composé ainsi que son utilisation dans un procédé de production de matière plastique teinte dans la masse ou des particules à couleurs polymères.

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