Ferrite green beads and method of producing carrier particles

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

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4301066, 430137, G03G 910

Patent

active

053168828

ABSTRACT:
A green bead composite for the manufacture of magnetic carrier particles for electrophotography is disclosed. The composite comprises a synthetic polyester or polyurethane as the binder for metal oxide and other metal salt particles. The dried, nonmagnetic green beads are prepared by a spray-drying process. The green beads so prepared are suitable for the production of magnetic carrier particles for electrophotographic development.

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