Magnetic toner compositions

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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430122, G03G 9083

Patent

active

055102212

ABSTRACT:
A process for avoiding, reducing, or minimizing comet formation which comprises adding to the surface of a magnetic toner comprised of resin particles, magnetite, carbon black, optional charge additive, and wax, a surface additive mixture of silica, and magnetite.

REFERENCES:
patent: Re33172 (1990-02-01), Gruber et al.
patent: 5158851 (1992-10-01), Fuller et al.
patent: 5202209 (1993-04-01), Winnik et al.
patent: 5292609 (1994-03-01), Yoshikawa et al.
patent: 5306588 (1994-04-01), Tanaka et al.

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