2-[[1-[[(2,3-DIHYDRO-2-OXO-1H-BENZIMIDAZOL-5-YL)AMINO]CARBONYL]-2-OXOPROPYL]AZO]-BENZOIC ACID AND A PROCESS FOR ITS PREPARATION

The present invention is directed to 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5- yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid (C.I. Pigment Yellow 151): (I) , characterized by a ?E* (black/white) in masstone below 22.0 ± 0.7, a process for its preparation and its use for pigmenting macromolecu...

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Bibliographic Details
Main Authors REICHERT, HANS, VEITH, ULRICH, EICHENBERGER, THOMAS, HUEGIN, MAX, SODER, SIBYLLE
Format Patent
LanguageEnglish
French
Published 26.07.2007
Subjects
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
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Summary:The present invention is directed to 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5- yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid (C.I. Pigment Yellow 151): (I) , characterized by a ?E* (black/white) in masstone below 22.0 ± 0.7, a process for its preparation and its use for pigmenting macromolecular organic materials of natural or synthetic origin. The pigment has high opacity and high color strength. L'invention concerne de l'acide 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5- yl)amino]carbonyl]-2-oxopropyl]azo]-benzoïque (pigment jaune 151 (C.I.)) de formule (I), caractérisé par une valeur ?E* (noir/blanc) en pleine couleur inférieure à 22,0 ± 0,7 ; un procédé de préparation de celui-ci et son utilisation pour la pigmentation de matériaux organiques macromoléculaires d'origine naturelle ou synthétique. Le pigment de l'invention présente un forte opacité et une intensité de couleur élevée.
Bibliography:Application Number: WO2007EP50148