Negatively chargeable toner for developing latent electrostatic

Details Negatively chargeable toner for developing latent electrostatic Negatively chargeable toner for developing latent electrostatic

1993-06-14

1994-05-24

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

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

4301066, 430110, G03G 909, G03G 9097

Patent

active

053147774

ABSTRACT:
A negatively chargeable toner for developing latent electrostatic images is composed of a coloring agent; releasing agent; a binder resin including a polyester and a styrene - acryl-based polymer component with a weight-average molecular weight of 50,000 to 150,000, a number-average molecular weight of 2,000 to 12,000, and a glass transition temperature of 55.degree. to 70.degree. C. at a mixing ratio by weight in the range of (95:5) to (50:50); and a charge controlling agent including at least one phthalic ester which is mixed with the styrene - acryl-based polymer component, and at least one fluorine-containing quaternary ammonium salt.

REFERENCES:
patent: 3609082 (1971-09-01), Moriconi et al.
patent: 5168028 (1992-12-01), Nanya et al.

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