Binder for a toner comprising a polyester from rosin or hydrogenated rosin
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United States of America Patent
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-
Jan 1, 1991
Issued Date -
N/A
app pub date -
Aug 23, 1989
filing date -
Nov 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This binder for toner preparation comprises as the main constituent thereof a polyester (X) composed of a polybasic acid component and a polyhydric alcohol component with a rosin-modified polyhydric alcohol (ab) introduced as part of the polyhydric alcohol component. The rosin-modified polyhydric alcohol is prepared in advance by reacting a polyhydric alcohol (a) having three or more hydroxyl groups with a rosin type compound (b).
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