Method and apparatus for treating substrate plastic parts to accept paint without using adhesion promoters
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United States of America Patent
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Jun 24, 2003
Grant Date -
May 8, 2003
app pub date -
Apr 17, 2001
filing date -
Apr 17, 2001
priority date (Note) -
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Abstract
A method and device of treating an irregularly shaped article to prepare the article for painting is provided. The device includes a burner which can produce an adjustable flame tongue which can fit into crevices, openings and other irregular topographical features of an item to be painted or otherwise coated. The burner device further provides means to apply a grafting chemical on a freshly oxidized surface. Further, the invention provides means to colorize treated objects so that they may be recognized as having been treated. In another embodiment, the grafting chemicals may be enhanced with electrolytic solutions such that electrostatic methods of painting may be subsequently employed on the item. In an alternate embodiment, the burner is adapted to spray a powder inside of a generally enclosed flame, and is used in conjunction with chop guns to manufacture glass or carbon fiber preforms.
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