Patent · US Active

Electrostatic ink compositions

US10534280B2 · kind B2 · utility

0Cited by

4References

12Claims

0Family size

Assignee

HP INDIGO B.V. · NL

Inventors

Haim Cohen · Nes Ziona, IL
Igor Shutyi · Nes Ziona, IL
Reut Avigdor · Nes Ziona, IL

Key dates

Filing date	Dec 18, 2015
Grant date	Jan 14, 2020
Priority date	—
Expiry date	Dec 18, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG03G2215/0629
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Herein is disclosed a liquid electrostatic ink composition. The composition may comprise a liquid carrier having dispersed therein: chargeable particles comprising a thermoplastic resin having acidic side groups; and globular particles comprising a hydrocarbon having a drop point, measured according to ASTM D3954-15, of at least 120° C., the globular particles having a D50 of from 2 μm to 7 μm and a D90 of 10 μm or less, the D50 and D90 being measured in the liquid carrier using laser diffraction and volume distribution, in accordance with ISO13220.

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