Electrophotographic toner composition
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United States of America Patent
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-
Apr 2, 1985
Grant Date -
N/A
app pub date -
Jul 15, 1983
filing date -
May 9, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrophotographic toner composition having excellent blocking resistance and offset resistance which contains as a resin binder a polymeric rosin compound having a glass transition temperature of 30.degree. and 100.degree. C. and a gel fraction of 1 to 99% to xylene prepared by the reaction of (a) a glycidyl ester of rosin, (b) a dicarboxylic acid or its anhydride, and (c) a crosslinking agent selected from the group consisting of a polyfunctional epoxy compound, a polycarboxylic acid having a valency of not less than 3 or its anhydride, and a polyhydric alcohol having a valency of not less than 3. A dihydric alcohol may be used in the above reaction in order to improve the low temperature fixing property of the toner.
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Cited Art Landscape
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