Patent · US Active

Electrophotographic varnish

US10197931B2 · kind B2 · utility

0Cited by

6References

17Claims

0Family size

Assignee

HP INDIGO B.V. · NL

Inventors

Haim Cohen · Nes Ziona, IL
Guy Nesher · Nes Ziona, IL
Getahun Biadglin · Beit She'an, IL
Tony Azzam · Nazareth, IL
Ilanit Mor · Kiryat Ono, IL
Samer Farran · Nes Ziona, IL
Yael Kowal-Blau · Givatayim, IL

Key dates

Filing date	Oct 24, 2014
Grant date	Feb 5, 2019
Priority date	—
Expiry date	Oct 24, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/10
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A transparent electrophotographic varnish composition comprises a charge adjuvant and inorganic filler particles. A method of manufacturing an electrophotographic varnish composition comprises heating a thermoplastic resin mixture until the resin has melted; cooling the resin mixture to form resin particles; contacting the resin particles with a charge adjuvant and inorganic filler particles to form composite particles or a mixture of particles; and combining the composite particles or particulate mixture with a carrier fluid to form the electrophotographic varnish composition. A liquid electrophotographic printing system and a print substrate are also provided.

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