Patent · US Expired

Toner processes

US7041425B2 · kind B2 · utility

1Cited by
13References
29Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 10, 2004
Grant dateMay 9, 2006
Priority date
Expiry dateAug 6, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/0806
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A process including blending a latex emulsion of resin, water, and an ionic surfactant, a colorant dispersion comprised of a colorant, water, and an ionic surfactant; and a wax dispersion comprised of wax, water and an ionic surfactant, heating the resulting mixture in the presence of coagulants, one of which is a source of calcium ions, which heating is below about the glass transition temperature (Tg) of the latex resin and subsequently heating above about the glass transition temperature (Tg) of the latex resin.

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