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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
C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
C09B35/02—Disazo dyes
C09B35/039—Disazo dyes characterised by the tetrazo component
C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
C09B35/20—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling compounds of different types
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur
(AREA)
Heat Sensitive Colour Forming Recording
(AREA)
Description
BERLIN. GEDRUCKT IN DEIt REICIISDRUCKEREI,BERLIN. PRINTED IN THE REICIISDRUCKEREI,
Claims (1)
Patent-Anspruch :Patent claim:Abänderung des durch Patent 219498 geschützten Verfahrens zur Darstellung
von Substantiven orange bis orangerot färbenden Disazofarbstoffen, dadurch gekennzeichnet,
daß man die Zwischenprodukte aus einem Molekül der Tetrazoverbindung eines p-Diamins und einem Molekül Salicylsäure
oder o-KresotinsäureModification of the method of representation protected by patent 219498
of nouns orange to orange-red coloring disazo dyes, characterized in that
that one is the intermediates from one molecule of the tetrazo compound of a p-diamine and one molecule of salicylic acid
or o-cresotinic acid(CH3■ OH . COOH = ι · 2 · 3)(CH 3 ■ OH . COOH = ι · 2 · 3)mit einem Molekül einer i-Aryl-5-pyrazolon-3-carbonsäure
kombiniert.with one molecule of an i-aryl-5-pyrazolone-3-carboxylic acid
combined.