Fusible electrostatically attractable toner

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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430109, G03G 908

Patent

active

044789238

ABSTRACT:
A toner composition of electrostatically attractable fusible powder particles suitable for fixing with simultaneous heat and pressure, having a melt viscosity at 140.degree. C. in the range of 10.sup.5 to 10.sup.6 mPa.s, an average particle size in the range of 1 to 50 .mu.m, and comprising a coloring substance and more than 80% of their volume of a mixture of: a combination of fumaric-bisphenolic and fumaric, propoxylated bisphenolic polyester resins, a sterically-hindered phenol release agent, and a melt-viscosity controlling pigment e.g. barium sulphate.

REFERENCES:
patent: 4147645 (1979-04-01), Lu
patent: 4271249 (1981-06-01), Gilliams et al.

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