Patent · US Expired

Emulsion aggregation toner particles coated with negatively chargeable and positively chargeable additives and method of making same

US6503677B1 · kind B1 · utility

15Cited by

13References

23Claims

0Family size

Assignee

Xerox Corporation · US

Inventors

Edward J. Gutman · Webster, US
Bernard Grushkin · Rutland, US
John G. Ruhland · Rochester, US

Key dates

Filing date	Jul 10, 2001
Grant date	Jan 7, 2003
Priority date	—
Expiry date	Jul 10, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG03G9/09775
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An emulsion aggregation toner particularly adapted for use in hybrid scavengeless development includes toner particles of polymer binder, colorant and a surface additive package containing at least one additive negatively chargeable to a carrier and at least one additive positively chargeable to the carrier. The toner is able to exhibit high stable triboelectric charging ability, and substantially eliminates charge through and slow admix in a developer employing the toner.

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