EP 1334154 A2 20030813 - PROCESS FOR MANUFACTURING PIGMENTARY QUINACRIDONES
Title (en)
PROCESS FOR MANUFACTURING PIGMENTARY QUINACRIDONES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON CHINACRIDONPIGMENTEN
Title (fr)
PROCEDE DE FABRICATION DE QUINACRIDONES PIGMENTAIRES
Publication
Application
Priority
- US 0150642 W 20011101
- US 71027300 A 20001110
Abstract (en)
[origin: WO0238680A2] A process for preparing quinacridone pigments involving (a) preparing a reaction mixture of a substituted or unsubstituted 2,5-dianilino-terephthalic acid or ester thereof, and at least about 0.5 parts by weight of acid of a dehydrating agent; (b) combining the reaction mixture through one or more heated zones at a temperature of about 80 C to about 300 C; and (c) mixing the resulting crude quinacridone composition with a liquid in which the quinacridone pigment is substantially insoluble.
IPC 1-7
IPC 8 full level
C09B 47/08 (2006.01)
CPC (source: EP)
C09B 47/08 (2013.01)
Citation (search report)
See references of WO 0238680A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0238680 A2 20020516; WO 0238680 A3 20030123; CA 2429050 A1 20020516; EP 1334154 A2 20030813
DOCDB simple family (application)
US 0150642 W 20011101; CA 2429050 A 20011101; EP 01985158 A 20011101