Browse Prior Art Database

DEVELOPER MATERIAL

IP.com Disclosure Number: IPCOM000022896D
Original Publication Date: 1976-Apr-30
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 146K

Publishing Venue

Xerox Disclosure Journal

Abstract

~ carrier particle for electrostatographic developer mixtures may be obtained by coating a steel core with a copolymer consisting essentially of styrene and an ester selected from acrylates, methacrylates, and mixtures thereof, The copolymer provides improved adhesion to the steel core which has an average diameter between 50 and 1,000 microns, The copolymer has a glass transition temperature of between

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XEROX DISCLOSURE JOURNAL

DEVELOPER N2~TERI~L Proposed Classification
Joseph H, Moriconi U.S. Cl. 252/62.1
Louis H. Burrows, Jr. mt. Cl. G03g 9/00

~ carrier particle for electrostatographic developer mixtures
may be obtained by coating a steel core with a copolymer
consisting essentially of styrene and an ester selected
from acrylates, methacrylates, and mixtures thereof, The
copolymer provides improved adhesion to the steel core
which has an average diameter between 50 and 1,000 microns,
The copolymer has a glass transition temperature of between

50°Cand 130°C and a weight~average molecular weight of
between 100,000 and 300,000, The copolymer may consist of
from 5 to 50 percent by weight of styrene and from 95 to 50

percent by weight of the ester,

Volume 1 Number 4 April 1976 55

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56 XEROX DISCLOSURE JOURNAL

Volume 1 Number 4 April 1976

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