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Bayer AG
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Bayer AG
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Application filed by Bayer AGfiledCriticalBayer AG
Application grantedgrantedCritical
Publication of FR1129864ApublicationCriticalpatent/FR1129864A/fr
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B43/00—Preparation of azo dyes from other azo compounds
C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
FR1129864D1954-08-251955-08-19Colorants tétrakisazoïques et leur procédé de production
ExpiredFR1129864A
(fr)