Cleaning blade for use with photoelectronic copying machine
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United States of America Patent
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Apr 25, 1989
Grant Date -
N/A
app pub date -
Jan 4, 1988
filing date -
Mar 14, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved cleaning blade for a photoelectronic copying machine. It has a sharp, resilient edge and is superior in wear resistance, and lubricating and cleaning properties. The substrate of the cleaning blade is urethane rubber and is coated with perfluoropolyether having a main structural unit represented by --C.sub.x F.sub.2x --O-- (x is 1, 2, 3 or 4) and having an isocyanate, hydroxyl, carboxyl or amino group at least at one end thereof. It may be coated with a mixture of the perfluoropolyether and an isocyanate group or a hydroxyl group.
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