| 摘要 |
PURPOSE:To obtain the quality similar to the quality of an initial image even after continuous copying by providing a friction imparting material of a negative polarity having the specific compd. which contains a substd. or unsubstd. alkyl group, arylene group, etc., and is expressed by the formula on the surface. CONSTITUTION:The image having the quality similar to the quality of the initial image is obtd. even after continuous copying by providing the friction imparting member of the negative polarity having the compd. expressed by the formula at least on the surface. In the formula, R<1> denotes a substd. or unsubstd. alkyl group, substd. or unsubstd. aryl group. R<2>, R<3>, R<4> denote a hydrogen atom, substd. or unsubstd. alkyl group, substd. or unsubstd. aryl group. Ar<1> denotes a substd. or unsubstd. aryl group and Ar<2> denotes a substd. or unsubstd. arylene group. Ar<1> and R<1> may jointly form a ring and n denotes 0 or 1 integer. |
