| 摘要 |
<p>PURPOSE:To permit maintenance of good cleanability stably for a long period of time by forming the titled cleaning blade of an urethane elastic body, at least part of which is the reaction product of an urethane forming material and fluorine compd. having &gt;=1 active hydrogen in 1mol. CONSTITUTION:The cleaning blade which cleans the surface of a drum by rubbing said surface consists essentially of the urethane elastic body, at least part of which is the reaction product of the urethane forming material and the fluorine compd. having &gt;=1 active hydrogen in 1mol. The fluorine compd. having &gt;=1 active hydrogen in 1mol. is exemplified by a compd. contg. a hydroxyl group (OH) or amino group (NH2) as the active hydrogen in the mol. The good cleanability is thereby maintained stably for a long period of time.</p> |
