Browse Prior Art Database

BLACK PEARLS L* CARBON BLACK IN XEROGRAPHIC TONERS

IP.com Disclosure Number: IPCOM000026379D
Original Publication Date: 1991-Aug-31
Included in the Prior Art Database: 2004-Apr-05

Publishing Venue

Xerox Disclosure Journal

Abstract

A toner composition containing Black Pearls L@ carbon black for use in electrophotographic printing and copying machines is disclosed. The composition is comprised of a styrene-butadiene copolymer resin, pigment particles, a quaternary ammonium salt charge control additive, and optionally magnetic particles, lubricants, flow additives, and the like, as disclosed, for example, in Xerox U.S. Patents 4,937,157 and 4,904,762.