发明公开
- 专利标题： Electrophotographic carrier comprising a coating of a grafted fluoropolymer
- 专利标题（中）： 荧光分光光度计
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申请号： EP99110154.4申请日： 1999-05-25
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公开(公告)号： EP0961176A1公开(公告)日： 1999-12-01
- 发明人: Bartus, Jan , Vail, Wilfred
- 申请人： NASHUA CORPORATION
- 申请人地址： 44 Franklin Street, P.O. Box 2002 Nashua, NH 03061-2002 US
- 专利权人： NASHUA CORPORATION
- 当前专利权人： NASHUA CORPORATION
- 当前专利权人地址： 44 Franklin Street, P.O. Box 2002 Nashua, NH 03061-2002 US
- 代理机构： Prüfer, Lutz H., Dipl.-Phys.
- 优先权： US86744P 19980526
- 主分类号： G03G9/113
- IPC分类号： G03G9/113 ; G03G9/107
摘要：
A carrier composition is provided for electrophotographic development. Core particles are coated with a graft copolymer of a fluoropolymer and methyl methacrylate. The core particles preferably are a material selected from steel, nickel, iron, ferrites, passivated iron, or mixtures or alloys thereof. The fluoropolymer preferably is a polymer selected from chlorotrifluoroethylene, polyvinylidene fluoride, polytrifluoroethylene, polytetrafluoroethylene, copolymers of vinylidene fluoride and hexafluoropropylene, and copolymers of vinylidene fluoride and tetrafluoroethylene. In a preferred carrier composition, the coating consists of two layers. The exterior layer is a graft copolymer made of a fluoropolymer and methyl methacrylate.
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