Patent · US Expired

Liquid developer for use in electrophotography

US4081391A · kind A · utility

21Cited by
8References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 29, 1975
Grant dateMar 28, 1978
Priority date
Expiry dateAug 29, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F285/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

This invention provides a liquid developer for use in electrophotography which comprises a dispersion of toner particles in a carrier liquid having a high resistivity and a low dielectric constant and is superior in fixability, dispersion stability and redispersability, said toner particles consisting essentially of pigment or dye particles and a non-aqueous dispersion of thermoplastic resinous composition comprising a graft-copolymer and at least one substance selected from wax the groups consisting of polyethylene.

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