Patent · US Expired

Fusible electrostatically attractable toner

US4853311A · kind A · utility

16Cited by

3References

12Claims

0Family size

Assignee

Agfa-Gavaert N.V. · BE

Inventors

Serge Tavernier · Lint, BE
August M. Marien · Oevel, BE
Herman Uytterhoeven · Bonheiden, BE

Key dates

Filing date	Feb 18, 1988
Grant date	Aug 1, 1989
Priority date	—
Expiry date	Feb 18, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S524/904
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A toner composition comprised of electrostatically attractable fusible powder particles, having an average particle size in the range of 1 to 100 .mu.m and a melt viscosity at 190.degree. C. in the range of 20 to 200 Pa.s, said powder particles comprising a coloring substance, a polymeric binder which consists essentially of a copolymer of: PA1 (1) styrene or styrene homologue, PA1 (2) an alkyl acrylate or alkyl methacrylate monomer wherein alkyl is a straight chain of at least 8 carbon atoms, and PA1 (3) a crosslinking monomer containing at least two ethylenically unsaturated groups, the binder copolymer constituting more than 50% of the total weight of the powder particles.

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