Patent · US Active

Electrostatic ink compositions

US9874828B2 · kind B2 · utility

1Cited by

14References

14Claims

0Family size

Assignee

Hewlett-Packard Indigo B.V. · NL

Inventors

Reut Avigdor · Nes Ziona, IL
Nurit Carmel-Barnea · Kiryat Ono, IL
Rada Nuchimov · Nes Ziona, IL
Yaron Grinwald · Gdera, IL

Key dates

Filing date	Oct 25, 2013
Grant date	Jan 23, 2018
Priority date	—
Expiry date	Oct 25, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG03G9/122
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Herein is disclosed an electrostatic ink composition comprising a resin and a conductive pigment, wherein the resin comprises a co-polymer formed from an alkylene monomer, an acrylic ester monomer and a maleic anhydride monomer, wherein, in some examples, the acrylic ester monomer constitutes at least about 8 wt % of the co-polymer. Herein is also disclosed a print substrate having printed thereon an electrostatic ink comprising a resin and a conductive pigment, wherein the resin comprises a co-polymer formed from an alkylene monomer, an acrylic ester monomer and a maleic anhydride monomer, wherein, in some examples, the acrylic ester monomer constitutes at least about 8 wt % of the co-polymer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.