Patent · US Expired

Developer compositions with suspension polymerized styrene butadiene resins

US4963455A · kind A · utility

11Cited by
1References
35Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 27, 1989
Grant dateOct 16, 1990
Priority date
Expiry dateOct 27, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/08737
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Developer compositions with toner compositions comprised of suspension polymerized styrene butadiene polymers, pigment particles, magnetites, and charge enhancing additives; and carrier components comprised of a carrier core with a coating thereover comprised of a polymer mixture with from about 10 to about 90 percent by weight of a first polymer, and from about 90 to about 10 percent by weight of a second polymer, which first and second polymers are not in close proximity in the triboelectric series.

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