Electrostatic powder coating on non-conductive plastics
AssigneeGeneral Electric Company
InventorsJohannes E. Fortuyn, Gerd Claus Hochberg, Ron Van Hoorn, Christiaan Henricus Koevoets, Jan Wagenaar
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Abstract
A method for electrostatic painting (coating) of a non-conductive polymer surface is disclosed, comprising applying a conductive layer on or adjacent to all or part of a side opposite the non-conductive polymer surface to be painted so as to provide sufficient conductivity to enable electrostatic painting of the non-conductive polymer surface. With the conductive layer in place the article can then be painted electrostatically. After painting, the conductive layer can optionally be removed without affecting the painted surface.
Claims32
A method for painting a non-conductive polymer article, comprising:
- disposing a conductive layer adjacent to at least a portion of a second surface of the article so as to provide sufficient conductivity to enable electrostatic painting of a first surface of the article, said conductive layer having a thickness of about 300 microns to about 5 microns;
- and
- electrostatically painting the first surface.
A method for painting a non-conductive polymer article comprising:
- producing an article having at least a first non-conductive layer disposed adjacent to a conductive layer, wherein the conductive layer provides sufficient conductivity to the first non-conductive layer to enable electrostatic painting of a surface of the first non-conductive layer;
- and
- electrostatically painting a surface of the first non-conductive layer.
Dependencies are inferred from the claim text.