| abstract |
WHEREIN R IS AN ARYLENE GROUP, THE BONDS TO WHICH ARE NOT IN THE ORTHO-POSITION, X IS HYDROGEN OR CHLORINE ATOM AND N IS A WHOLE NUMBER GREATER THAN 3, ARE USEFUL FOR COLORING PLASTIC AND LACQUERS, ESPECIALLY SOFT POLYVINYL CHLORIDE IN RED SHADES WITH GOOD LIGHT AND SUBLIMATION FASTNESS PROPERTIES. (1-((2-CL,4-X,5-(-CO-)-PHENYL)-N=N-),2-(HO-),3-(-CO-)- NAPHTHALENE)N (-NH-R-NH-)N POLYAZO PIGMENTS OF THE FORMULA |