Patent · US Expired

Electrostatic image developing toner, process for the production thereof, electrostatic image developer and process for the formation of image

US6153346A · kind A · utility

14Cited by
2References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 24, 1999
Grant dateNov 28, 2000
Priority date
Expiry dateFeb 24, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/0819
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Disclosed is an electrostatic image developing toner comprising a binder resin and a coloring agent, which exhibits a volume-average particle distribution GSDv of not more than 1.26 and an acid value of from 1.0 to 20 mgKOH/g and contains a surface active agent in an amount of not more than 3% by weight in the particulate toner and an inorganic metal salt having an electric charge having a valence of two or more in an amount of from not less than 10 ppm to not more than 1% by weight.

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