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

1976-07-30

1978-01-10

Gwinnell, Harry J.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

252 621P, 427 20, 427216, 427221, 428404, 428406, 428407, 428421, 526 5, G03G 914, G03G 910, B32B 2714

Patent

active

040680177

ABSTRACT:
Carrier particles for use in an electrophotographic process are prepared by applying a mixture of a perfluoro acid and polyvinylidene fluoride to the surface of the carrier particle. The resulting carriers are long lived, abrasion resistant and capable of imparting a high triboelectric charge to electroscopic powders mixed therewith.

REFERENCES:
patent: 3142665 (1964-07-01), Cardinal et al.
patent: 3595944 (1971-07-01), Manning et al.
patent: 3849127 (1974-11-01), Madrid et al.
patent: 3922381 (1975-11-01), Datta
patent: 3922382 (1975-11-01), Kukla et al.
Research Disclosure, June 1974, pp. 35-36.

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