发明授权
- 专利标题: High molecular electret film
- 专利标题(中): 高分子驻极体膜
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申请号: US419553申请日: 1995-04-10
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公开(公告)号: US5543224A公开(公告)日: 1996-08-06
- 发明人: Toshihisa Sakai , Masanori Kawasumi
- 申请人: Toshihisa Sakai , Masanori Kawasumi
- 申请人地址: JPX Osaka
- 专利权人: Mita Industrial Co., Ltd.
- 当前专利权人: Mita Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX6-072235 19940411
- 主分类号: C08J5/18
- IPC分类号: C08J5/18 ; C08L25/04 ; C08L71/00 ; C08L71/12 ; G03G15/08 ; G03G15/16 ; G03G21/00 ; B32B27/00
摘要:
A high molecular electret film which comprises an electret film of a blend of a poly(2,6-dialkyl-1,4-phenylene oxide) consisting of a recurring unit represented by the following general formula (1), ##STR1## wherein R is an alkyl group having not more than 4 carbon atoms, and a styrene resin. The electret film exhibits vary favorable electric charge-retaining property and favorable adhesiveness to metals. The film is very effectively used for a developing sleeve in an electrophotographic apparatus, for a cleaning device, for a transfer device, etc. and exhibits desired effects stably and for extended periods of time.