EP 2137263 A2 20091230 - PRODUCTION OF FINE-PARTICLE PIGMENTS
Title (en)
PRODUCTION OF FINE-PARTICLE PIGMENTS
Title (de)
HERSTELLUNG FEINTEILIGER PIGMENTE
Title (fr)
FABRICATION DE PIGMENT FINEMENT REPARTI
Publication
Application
Priority
- EP 2008054319 W 20080410
- EP 07106102 A 20070413
- EP 08736041 A 20080410
Abstract (en)
[origin: WO2008125580A2] The invention relates to a method for finishing an organic pigment, the pigment being dissolved or dispersed in mineral acid, and from the solution or dispersion the pigment being crystallizable by mixing it with an aqueous diluent in the presence of a condensation product of naphthalene sulfonic acid and at least one aliphatic aldehyde having 1 to 6 carbon atoms as a crystallization modifier, the product containing sulfonate groups, and subsequently the pigment being isolated as solid matter, characterized in that the crystallization modifier is present in the aqueous diluent.
IPC 8 full level
C09B 67/14 (2006.01); C09B 67/04 (2006.01); C09B 67/20 (2006.01); C09B 67/22 (2006.01)
CPC (source: EP KR US)
C09B 67/0002 (2013.01 - EP KR US); C09B 67/0017 (2013.01 - EP KR US); C09B 67/0033 (2013.01 - KR); C09B 67/0034 (2013.01 - EP US); C09B 67/006 (2013.01 - KR); C09B 67/0086 (2013.01 - EP US)
Citation (search report)
See references of WO 2008125580A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008125580 A2 20081023; WO 2008125580 A3 20090409; CN 101679765 A 20100324; EP 2137263 A2 20091230; JP 2010523782 A 20100715; KR 20100016422 A 20100212; US 2010050904 A1 20100304
DOCDB simple family (application)
EP 2008054319 W 20080410; CN 200880015780 A 20080410; EP 08736041 A 20080410; JP 2010502505 A 20080410; KR 20097023480 A 20080410; US 59569408 A 20080410