Search International and National Patent Collections

1. (WO2017153666) ELECTROPHORETIC INK

Pub. No.:    WO/2017/153666    International Application No.:    PCT/FR2017/050481
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Mar 04 00:59:59 CET 2017
IPC: C09D 11/03
C09D 11/033
C09D 11/037
G02F 1/167
G03G 9/00
Applicants: ARKEMA FRANCE
UNIVERSITE DE BORDEAUX
INSTITUT POLYTECHNIQUE DE BORDEAUX
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Inventors: MIRBEL, Deborah
NAVARRO, Christophe
BROCHON, Cyril
CLOUTET, Eric
HADZIIOANNOU, Georges
Title: ELECTROPHORETIC INK
Abstract:
The invention relates to an electrophoretic ink including particles that may have a negative charge, dispersed in a non-polar organic solvent. Said ink is characterized in that it includes a trialkylamine charge-control agent, selected from the following charge-control agents: tributylamine, triisobutylamine, tripentylamine, trihexylamine, tri(2-ethylhexyl)amine, trioctylamine, triisooctylamine, tridodecylamine, triisododecylamine; and in that the particles have a hydrophobic surface and an isoelectric point (IEP) or a point of zero charge (PZC) that is lower than the pKa of the charge-control agent.