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AssigneeAvery Dennison Corporation
InventorsHoward H. Enlow, Scott W. Huffer, Frederick Young, William J. Buehne
Estimating the term…
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.
A process for making an electrostatic spray painted plastic panel, comprising the steps of:
A process for making an electrostatic spray painted plastic car body panel, comprising the steps of:
In a process for making an electrostatically spray painted plastic panel, in which a finished paint coat is applied to the exterior surface of a contoured plastic panel by electrostatic spray techniques, the improvement comprising:
In a process for making an electrostatically spray painted plastic car body panel, in which a weatherable thermoset lacquer exterior automotive quality paint coat is applied to the exterior surface of a contoured plastic car body panel by electrostatic spray techniques, the improvement comprising:
Dependencies are inferred from the claim text.