发明名称 |
Thermoformable conductive laminate and process |
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-roughened 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.
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申请公布号 |
US6001207(A) |
申请公布日期 |
1999.12.14 |
申请号 |
US19970966602 |
申请日期 |
1997.11.10 |
申请人 |
AVERY DENNISON CORPORATION |
发明人 |
ENLOW, HOWARD H.;HUFFER, SCOTT W.;YOUNG, FREDERICK;BUEHNE, WILLIAM J. |
分类号 |
B32B27/08;B32B38/12;(IPC1-7):B44C1/165;B29B1/165;B32B31/00;B05D1/06 |
主分类号 |
B32B27/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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