IN WHICH R1 is hydrogen, chloro, bromo or nitro; R2 and R3 are water-insoluble and are hydrogen or chloro; R4 is hydrogen, chloro or methyl; and X is cyano or carbamoyl. The pigments are eminently suitable for coloring resins, surface coatings or printing inks.
Abstract:
WHEREIN R1 is H, Cl in the 3- or 4- position to the azo group and R2 is a phthalimide group in the meta-or para position. The yellow pigments are suitable for coloring surface coatings and plastics and for the production of printing inks. The pigments have excellent light fastness properties, weather fastness properties and fastness to over spraying.
Abstract:
DISAZO DYES DIRIVED FROM A BENZIDINE TETRAZO COMPONENT AND 2,6 - DIHYDROXY - 4 - METHYLPYRIDINE - 3 - NITRILE AS COUPLING COMPONENT AND THEIR USE AS PIGMENTS.
Abstract:
Azo pigments of the Beta -hydroxynaphthoic acid series containing an o-phenylenediamine and a trimellitic acid imide moiety. These pigments are best illustrated by the formula
The pigments are suitable for example for coloring resins, surface coatings and printing inks and give brilliant hues of very good fastness properties.
Abstract:
Azo dyes derived from ortho-oxdiazolylaniline diazo components and from coupling components containing a hydroxy group or an enolizable keto group in ortho- or para-position to the azo bridge. The dyes are yellow to red and are useful as disperse dyes and particularly as pigments. The pigments give fast colorations in printing inks, resins and surface coatings.
Abstract:
WHERE R1 is methyl and R2 is hydrogen, C1 18 alkyl, C5 10 cycloalkyl or aryl, are reacted at temperatures of between 50*C and 150*C. The process is particularly suitable for the manufacture of surface coatings. Manufacture of polymeric products. Mixtures of (I) at least one compound containing at least two aziridine groupings per molecule and (II) at least one compound containing at least one ester grouping of the general formula: