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Novartis AG
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JR Geigy AG
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Publication of ES226428A1publicationCriticalpatent/ES226428A1/es
Procedimiento para pa preparación de lacas de color, caracterizado porque sde copula un ácido aminobencensulfónico diazotado que contiene alo menos dos grupos de poder hidrosolvente de disociación ácida, con una arilamida de ácido o-oxiarilcarboxílico que copula en posición orto con respecto al grupo hidroxilo, y porque se transforma el monoazocolorante obtenido, según métodos en sí conocidos, con compuestos de metales polivalentes en laca.
ES0226428A1955-02-021956-02-01UN PROCEDIMIENTO PARA LA PREPARACIoN DE LACAS DE COLOR.
ExpiredES226428A1
(es)