Azo dyes
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,...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
20.07.2005
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | 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 |
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Bibliography: | Application Number: CN20038006608 |