Perylene-1,2,3,4-tetracarboxylic acid → Octadecylamine
Reaktionsgleichung
C1(C(O)=O)C2=C3C(C4C5C(=CC=CC2=5)C=CC=4)=CC=C(C(O)=O)C3=C(C(O)=O)C=1C(O)=O.[CH2:33]([NH2:51])[CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH3:50].C(O)(C)C.Cl>>[CH2:33]([NH2:51])[CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH3:50]Komponenten
3
Versuchsvorschrift
The alkaline perylenetetracarboxylic acid solution is added dropwise to the stearylamine/isopropanol/hydrochloric acid suspension in the course of 15 minutes at 60° C., whereupon the perylenetetracarboxylic acid precipitates. The formation of the anhydride imide is brought to completion by boiling the still acid suspension for 3 hours at reflux temperature. The red pigment suspension is filtered at about 70° C. The filter cake is washed neutral with cold water and dried in a vacuum cabinet at 80° C., affording 28.8 parts of stearylamine-modified perylene-3,4,9,10-tetracarboxylic dianhydride pigment. When incorporated in powder form in plasticised PVC rolled sheets, this pigment produces strong, red colourations of excellent fastness properties and has extremely good dispersibility.