Coated carrier particles for use in electrophotographic process

Details Coated carrier particles for use in electrophotographic process Coated carrier particles for use in electrophotographic process

1976-05-03

1977-10-25

Hoffman, James R.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

96 1SD, 252 621P, 427 14, 427 20, 427213, 428407, G03G 1309, G03G 910, G03G 914

Patent

active

040556840

ABSTRACT:
Carrier particles for use in an electrophotographic process are prepared by coating a particulate matrix with an ion exchange resin dispersed in a polymeric binder. The resulting coated carrier particles are long lived and depending upon the choice of ion exchange resin can be used to impart a positive or negative triboelectric charge of the magnitude desired to electroscopic powders mixed therewith.

REFERENCES:
patent: 3725118 (1973-04-01), Fuller et al.
patent: 3793048 (1974-02-01), Nagashima et al.
patent: 3898170 (1975-08-01), Kasper

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