Patent · US Expired

Polyester toner and developer compositions

US5391452A · kind A · utility

19Cited by
6References
29Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 2, 1993
Grant dateFeb 21, 1995
Priority date
Expiry dateAug 2, 2013

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/105
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A toner composition comprised of pigment, an optional charge enhancing additive and a side chain polymer comprised of a polyester present as a side chain on a polyalkylene of the following formula ##STR1## wherein m, n, and o represent the number of monomer segments present; R is independently selected from the group consisting of hydrogen and alkyl; R' is independently selected from the group consisting of arylene and alkylene; R" is independently selected from the group consisting of alkylene and oxyalkylene; and wherein m is from about 10 to about 1,000, n is from about 1 to about 1,000 and o is from about 10 to about 1,000.

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