Toner for developing latent electrostatic images

Details Toner for developing latent electrostatic images Toner for developing latent electrostatic images

1992-07-13

1993-09-14

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

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

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

430111, 430137, G03G 900, G03G 500

Patent

active

052447650

ABSTRACT:
A toner for developing latent electrostatic images which comprises a binder resin comprising a styrene polymer or a copolymer thereof, a releasing agent, dispersed in the above binder resin, comprising a low-molecular-weight polypropylene with a weight-average molecular weight of 3000 to 25000, and a coloring agent, dispersed in the above binder resin, with the styrene polymer or copolymer thereof being contained in a ratio of 10-50% and the low-molecular-weight polypropylene in a ratio of 5-60% at a surface portion of the above toner measured by the electron spectroscopy for chemical analysis (ESCA), and a maximum particle diameter of the low-molecular-weight polypropylene contained in the releasing agent being 5000 .ANG. or less.

REFERENCES:
patent: 4795689 (1989-01-01), Matsubara et al.
patent: 4994340 (1991-02-01), Yamazaki et al.

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