CLEANING BLADE MEMBER
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United States of America Patent
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N/A
Issued Date -
Jan 31, 2008
app pub date -
Jul 26, 2007
filing date -
Jul 27, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a cleaning blade member which can be excellently produced by molding and which exhibits small variation in physical properties with temperature, and excellent wear resistance. The cleaning blade member formed of a castable polyurethane member produced through hardening and molding a polyurethane composition containing at least a polyol, a polyisocyanate, and a diamino compound, wherein the diamino compound has a melting point of 80.degree. C. or lower, the polyisocyanate is a blend of 4,4'-diphenylmethane diisocyanate (MDI) and 3,3-dimethylphenyl-4,4-diisocyanate (TODI), and the ratio of TODI in the entirety of polyisocyanate is 30 to 100% by weight.
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