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公开(公告)号：EP0842457A1
公开(公告)日：1998-05-20
申请号：EP96924486.0
申请日：1996-07-15
IPC分类号： G03G15
CPC分类号： G03G15/2025 , G03G2215/2096 , Y10S118/15
摘要： This invention provides a liquid metering and surface coating device which can satisfactorily perform the operation of applying a release liquid to at least the surface of toner image fixation rolls in plain paper copying, with exceptional accuracy, uniformity, and durability. The device comprises a porous support layer adhered to a metal shaft. The porous support layer is comprised of an open-celled thermosetting polymer foam internally reinforced to obtain the strenght, resilience, and heat resistance needed for high durability in use as part of a hot toner image fixation mechanism in a PPC machine. The porous support is comprised of materials having high compatibility with and wettability by the liquids to be distributed and having high liquid holding capacity so as to provide smooth continuous liquid delivery. Adhered to the porous support layer is a liquid permeation control layer which is comprised of porous polytetrafluroethylene film in which the pores contain a mixture of silicone oil and silicone rubber. Adhered to the outer surface of the liquid permeation control layer is a release layer which is comprised of a porous polytetrafluoroethylene film.
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公开(公告)号：EP0790890A1
公开(公告)日：1997-08-27
申请号：EP96927334.0
申请日：1996-08-06
CPC分类号： B32B27/06 , B32B5/18 , B32B7/12 , B32B27/322 , B32B2307/202 , B32B2307/21 , B32B2307/748 , B32B2327/18 , G03G15/2057
摘要： The present invention is an improved release coating for use on a variety of elastomeric structures, such as printer rollers and belts. The coating of the present invention is a thin expanded polytetrafluoroethylene (PTFE) skin (18) that has a porous surface (20) attached to a substratum (16) and an impermeable surface (22) exposed to the contact surface, in which the PTFE is filled with a particulate filter. This use of dual surfaces on a single thin coating provides both an excellent bond to substratum materials, such as silicone elastomer layer, as well as being highly wear resistant to chemical attack.
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公开(公告)号：EP0842457B1
公开(公告)日：2001-10-31
申请号：EP96924486.2
申请日：1996-07-15
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G2215/2096 , Y10S118/15
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公开(公告)号：EP0731935A1
公开(公告)日：1996-09-18
申请号：EP95903186.0
申请日：1994-12-02
CPC分类号： B29C33/68 , B29K2027/18 , G11B5/84 , Y10T428/31544
摘要： The present invention is an improved release coating for use on a variety of elastomeric structures, such as printer rollers (10) and belts. The coating of the present invention is a thin expanded polytetrafluorethylene skin (18) that has a porous surface (20) attached to a substratum and an impermeable surface (22) exposed as the contact surface. This use of dual surfaces on a single thin coating provides both an excellent bond to substratum materials, such as a silicone elastomer layer, as well as being highly wear resistant and resistant to chemical attack.
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