EP 1720948 A1 20061115 - BETA COPPER PHTHALOCYANINE COMPOSITION AND CONDITIONING PROCESS LEADING THERETO
Title (en)
BETA COPPER PHTHALOCYANINE COMPOSITION AND CONDITIONING PROCESS LEADING THERETO
Title (de)
BETA-KUPFER-PHTHALOCYANIN-ZUSAMMENSETZUNG UND DAZU FÜHRENDES KONDITIONIERUNGSVERFAHREN
Title (fr)
COMPOSITION DE PHTALOCYANINE DE CUIVRE DU TYPE BETA ET PROCEDE DE CONDITIONNEMENT DE CETTE COMPOSITION
Publication
Application
Priority
- EP 2005050195 W 20050119
- EP 04100310 A 20040129
- EP 05707798 A 20050119
Abstract (en)
[origin: WO2005075577A1] The invention relates to a process for preparing a phthalocyanine pigment, comprising heating to a temperature of from 50 to 200°C a slurry comprising: a phthalocyanine consisting of primary particles having an average particle size of maximally 0.5 µm, preferably an average particle size of from 0.01 to 0.3 µm; from 4 to 500% by weight, based on the weight of the phthalocyanine, of a neutral organic conditioning liquid capable of forming with water an azeotropic mixture which has a lower boiling point than water and comprises from 4 to 96% by weight of water in the gas phase at standard pressure; from 0.1 to 5% by weight, based on the weight of the phthalocyanine, of one or more compounds selected from the group consisting of non-aromatic hydrocarbons either unsubstituted or substituted by 1 or 2 hydroxy and /or ether groups, which compounds have at least 12 C atoms and a boiling point of from 150 to 350°C, preferably from 200 to 330°C, most preferred from 240 to 310°C; optionally up to 30% by weight, based on the amount of non-aromatic, unsubstituted or substituted hydrocarbons, of one or more aromatic, unsubstituted and/or optionally substituted hydrocarbons having at least 12 C atoms and a boiling point of from 150 to 350°C, preferably from 200 to 330°C, most preferred from 240 to 310°C; from 1 to 50 parts by weight, per part by weight of neutral organic conditioning liquid, of a basic aqueous solution having a pH value of >= 9, preferably having a pH value of from 10 to 13. The resulting compositions, preferably also comprising minor amounts of a resin and/or a phthalocyanine derivative, are also claimed. The compositions lead to an excellent flowability, especially at low shear in oil inks.
IPC 8 full level
C09B 67/22 (2006.01); C09B 67/12 (2006.01)
CPC (source: EP)
C09B 67/0016 (2013.01)
Citation (search report)
See references of WO 2005075577A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005075577 A1 20050818; EP 1720948 A1 20061115; TW 200538516 A 20051201
DOCDB simple family (application)
EP 2005050195 W 20050119; EP 05707798 A 20050119; TW 94102658 A 20050128