Electrophotographic process uses toner comprising vinyl copolyme

Details Electrophotographic process uses toner comprising vinyl copolyme Electrophotographic process uses toner comprising vinyl copolyme

1986-07-31

1988-02-23

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...

430109, 430904, G03G 1100

Patent

active

047270101

ABSTRACT:
An electrophotographic toner, which can exhibit good fixation in high-speed copying and is not affected by an environment such as high humidity, is provided by containing, as a principal component thereof, a resin blend composed of (a) 40-90 wt. % of a vinyl copolymer (I) formed of 70-97 wt. % of an aromatic vinyl monomer, 3-30 wt. % of an alkyl fumarate which is a C.sub.1-8 monoalkyl or dialkyl ester and 0-5 wt. % of an acid monomer and having a number average molecular weight of 2,000-15,000 and (b) 10-60 wt. % of a vinyl polymer (II) having a number average molecular weight of 20,000-500,000.

REFERENCES:
patent: 2940934 (1960-06-01), Carlson
patent: 3718594 (1973-02-01), Miller
patent: 3964903 (1976-06-01), Van Besauw
patent: 4138390 (1979-02-01), Emmons

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