发明授权
- 专利标题: Thermoformable conductive laminate and process
- 专利标题(中): 可热成型导电层压板和工艺
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申请号: US487488申请日: 1995-06-07
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公开(公告)号: US5686186A公开(公告)日: 1997-11-11
- 发明人: Howard H. Enlow , Scott W. Huffer , Frederick Young , William J. Buehne
- 申请人: Howard H. Enlow , Scott W. Huffer , Frederick Young , William J. Buehne
- 申请人地址: CA Pasadena
- 专利权人: Avery Dennison Corporation
- 当前专利权人: Avery Dennison Corporation
- 当前专利权人地址: CA Pasadena
- 主分类号: B05D1/04
- IPC分类号: B05D1/04 ; B32B27/08 ; B32B37/20 ; B32B38/12 ; B32B27/00
摘要:
A process for making a thermoformable conductive plastic laminate for use in making plastic parts adapted for electrostatic spray painting of a uniform high quality paint finish includes forming a matte release coated casting sheet, casting an electrically conductive polymer in thin film form on the casting sheet, drying to form a conductive primer coat, and transfer-laminating the conductive coating to a thin, thermoformable plastic face sheet. The matte release coat has a fine particulate filler that transfers a micro-toughened matte surface to the conductive primer coat. The conductive primer includes a polyester resin containing a fine particulate conductive material such as carbon black and, preferably, an anti-blocking agent such as fumed silica. The primer coated face sheet can be thermoformed and bonded to a underlying plastic substrate panel. The conductive primer has sufficient elongation and maintains uniform electrical surface conductivity and film thickness throughout the transfer-laminating, thermoforming and substrate panel-cladding process. The uniform surface resistivity of the conductive primer film is sufficient to permit electrostatic spray painting of the finished contoured panel and in one embodiment produces a Class "A" quality exterior automotive paint finish on the resulting panel.
公开/授权文献
- US4971497A Fastener system 公开/授权日:1990-11-20