Silicone resin coated carrier particles for use in a two-compone

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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428405, G03G 910

Patent

active

045842540

ABSTRACT:
Carrier particles for use in a two-component dry-type developer for developing latent electrostatic images are disclosed, which core particle comprises a core particle and a silicone resin layer coated on the core particles, and the silicone resin layer contains an organic tin compound, which serves as a catalyst for hardening the silicone resin layer in the course of the formation of the silicone resin layer on the core particle under application of heat thereto, with a concentration gradient in the direction of the thickness of the silicone resin layer towards the outer surface of the carrier particles.

REFERENCES:
patent: 3833366 (1974-09-01), Madrid et al.
patent: 3840464 (1974-10-01), Van Engeland et al.
patent: 4191587 (1980-03-01), Kratel et al.

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