US 2016/0306287 A1 · ELECTROSTATIC INK COMPOSITIONS

Abstract

Herein is disclosed an electrostatic ink composition comprising: a) chargeable particles comprising a resin; b) a charge director comprising a sulfosuccinate salt of the general formula M′Am, wherein M′ is a metal, m is the valence of M′, and A is an ion of the general formula (I): (I) [R3—O—C(O)CH2CH(SO3)C(O)—O—R4]− wherein each of R3 and R4 is an alkyl group; and c) an optionally substituted naphthalene-sulfonate moiety. Also disclosed is a method of manufacturing an electrostatic ink composition and a printed medium having printed thereon an electrostatic ink composition.

Claims15

Dependent claims

An electrostatic ink composition comprising:

a) chargeable particles comprising a resin;
b) a charge director comprising a sulfosuccinate salt of the general formula M′Am, wherein M′ is a metal, m is the valence of M′, and A is an ion of the general formula (I):
[R3—O—C(O)CH2CH(SO3)C(O)—O—R4]− (I)
wherein each of R3 and R4 is an alkyl group;
and
c) an optionally substituted naphthalene-sulfonate moiety.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/102,860Filed 24 Jan 2014

Published

20 Oct 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

G03G 9/1355
Characterised by stabiliser or charge-controlling agents: ionic, organic compounds
C09D 11/03
Printing inks: characterised by features other than the chemical nature of the binder
G03G 9/135
In liquid developer mixtures: characterised by stabiliser or charge-controlling agents
G03G 13/18
Transferring a pattern to a second base: of a charge pattern

Electrostatic ink compositions

Life of this patent

Electrostatic ink compositions

Life of this patent

Abstract

Claims15