Color agents for especially polyester material, level colour shades having very good fastness to light, especially very good high temperature light fastness, fastness to thermofixing, good fastness to rubbing

Japan Patent

PATENT NO 5203545
APP PUB NO JP-2001098177-A
SERIAL NO

2000268656

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Abstract

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The present invention relates to dyes of formulawhereinR1 is hydrogen, bromine, chlorine, cyano, R2 is hydrogen, methyl, acetylamino, R3 is ethyl unsubstituted or substituted by cyano or by acyloxy, R4 is ethyl unsubstituted or substituted by cyano or by acyloxy, to a process for their preparation and to their use in the dyeing or printing of hydrophobic fiber materials.

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Patent Owner(s)

Patent OwnerAddress
CIBA SC HOLDING AGNot Provided

International Classification(s)

Inventor(s)

Inventor Name Address
LAUK URS -
ARQUINT ALFONS -
WILHELM JEAN-CLAUDE -
ROMEO DREYER -

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