VERFAHREN ZUM FAERBEN THERMOPLASTISCHER KUNSTSTOFFE
Process for dyeing thermoplastics having no reducing action, in which process there are used Mg, Zn, Cd and Ni salts of azo dye sulphonic acids of the formula wherein A represents a phenyl or naphthyl group optionally substituted by halogen atoms, by alkyl or alkoxy groups containing 1 - 4 C atoms,...
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Main Authors | , |
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Format | Patent |
Language | German |
Published |
27.01.1977
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Edition | 2 |
Subjects | |
Online Access | Get full text |
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Summary: | Process for dyeing thermoplastics having no reducing action, in which process there are used Mg, Zn, Cd and Ni salts of azo dye sulphonic acids of the formula wherein A represents a phenyl or naphthyl group optionally substituted by halogen atoms, by alkyl or alkoxy groups containing 1 - 4 C atoms, or by trifluoromethyl groups, X represents a hydrogen atom or a carboxy group, and n represents the number 1 or 2. |
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Bibliography: | Application Number: DE19762629639 |