Anthraquinone dyes, preparation thereof and use thereof

Details Anthraquinone dyes, preparation thereof and use thereof Anthraquinone dyes, preparation thereof and use thereof

C - Chemistry, Metallurgy

09

B

C09B 1/58 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2431419

The present invention relates to anthraquinone dyes of the formula (I) where R~1 is hydrogen, R~2 is hygrogen or CO-C~2C~6alkyl moiety may be substituted by carboxyl, or is (II) wherein R~6 is hydrogen, C~1-C~4alkyl, hydroxyl, carboxyl or halogen, R~7 is hygrogen, C~1-C~4alkyl or halogen and R~8 is hydrogen or C~2-C~3alkyl or when R~4 is halogen R~8 may be methyl or halogen, R~3 is hydrogen or halogen, R~4 is hydrogen or halogen and n is (0), (1) or (2), with the proviso that R~3, R~4, R~6, R~7 and R~8 are not all hydrogen at one and the same time, processes for their preparation and their use for dyeing or printing hydrophobic fibre materials or for preparing coloured plastics or polymeric colour particles.

L'invention concerne des colorants d'anthraquinone repr~sent~ par la formule (1) dans laquelle R´1? repr~sente hydrog­ne, R´2? repr~sente hydrog­ne ou alkyle CO-C´2?-C´6? l'entit~ alkyle C´2?-C´6? pouvant Útre substitu~e par carboxyle, ou est de formule (2) dans laquelle R´6? repr~sente hydrog­ne, alkyle C´1?-C´4?, hydroxyle, carboxyle ou halog­ne, R´7? repr~sente hydrog­ne, alkyle C´1?-C´4? ou halog­ne et R´8? repr~sente hydrog­ne ou alkyle C´2?-C´3?, ou lorsque R´4? repr~sente halog­ne R´8 ? peut repr~senter m~thyle ou halog­ne, R´3? repr~sente hydrog­ne ou halog­ne, R´4? repr~sente hydrog­ne ou halog­ne et n vaut (0), (1) ou (2), ~ condition que R´3?, R´4?, R´6?, R´7? et R´8? ne repr~sentent pas tous hydrog­ne en mÚme temps. L'invention concerne ~galement des proc~d~s de pr~parations de ces colorants, ainsi que leur utilisation pour colorer ou imprimer des mat~riaux de fibre hydrophobes ou pour pr~parer des plastiques color~s ou des particules de couleur polym~riques.

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