Electrophotographic toner comprising lactone-modified epoxy resi

Details Electrophotographic toner comprising lactone-modified epoxy resi Electrophotographic toner comprising lactone-modified epoxy resi

1986-03-17

1990-12-18

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

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

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

430904, G03G 900

Patent

active

049785966

ABSTRACT:
The present invention provides an electrophotographic toner, particularly with a good transferability and a good flowability, which comprises a binder resin and a coloring agent, the binder resin containing a lactone-modified epoxy resin, obtained by subjecting all or a portion of secondary hydroxyl groups of epoxy compounds having hydroxyl groups in the molecules to ring opening polymerization of lactone.
The present invention further provides an electrophotographic toner with a good transferability, a good flowability and a good offset resistance and also with a fixability of transferred images, which comprises a binder resin and a coloring aent, the binder resin containing:

REFERENCES:
patent: 2297691 (1942-10-01), Carlson
patent: 3185777 (1965-05-01), Rheinfraub
patent: 3595794 (1971-07-01), Hagenbach et al.
patent: 4105572 (1978-08-01), Gorondy
patent: 4492789 (1985-01-01), Nakashima et al.
patent: 4522984 (1985-06-01), Watanabe et al.

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