Fluidity improver for positively-charging resin powder

Details Fluidity improver for positively-charging resin powder Fluidity improver for positively-charging resin powder

1988-05-16

1989-07-04

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

428405, B32B 1900, G03G 908

Patent

active

048450049

ABSTRACT:
There is disclosed a hydrophobic silica-type micropowder comprising silica-type microparticles which have been treated with certain secondary or tertiary amine-functional silanes. When the micropowder is combined with a positively-charging resin powder, such as a toner, the fluidity of the resin powder is substantially increased and this improved fluidity is retained upon long term storage.

REFERENCES:
patent: 4600677 (1986-07-01), Hoffend et al.
patent: 4640882 (1987-02-01), Mitsuhashi et al.

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