Polymeric binder for toner having specific weight distribution

Details Polymeric binder for toner having specific weight distribution Polymeric binder for toner having specific weight distribution

1985-03-21

1986-12-02

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

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

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

430126, 430904, G03G 908

Patent

active

046264884

ABSTRACT:
A toner for developing electrostatic image excellent in harmonization of hot roller fixability, anti-offset characteristic and durability is provided by melt-kneading a binder resin and a colorant and pulverizing the kneaded product. The binder resin comprises a polymer having at least three peaks or shoulders in its chromatogram obtained by gel permeation chromatography, wherein the at least three peaks or shoulders include a peak or shoulder A having the largest molecular weight Ma of 2,000 to 80,000, a peak or shoulder C having the smallest molecular weight Mc satisfying, the relationship of Mc/Ma.gtoreq.150, and a peak or shoulder B having an intermediate molecular weight between the Ma and Mc.

REFERENCES:
patent: 4486524 (1984-12-01), Fujisaki

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