Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Forming nonmetal coating using specified waveform other than...
Reexamination Certificate
2004-10-25
2009-08-04
Ryan, Patrick (Department: 1795)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Forming nonmetal coating using specified waveform other than...
C205S108000, C205S201000, C205S324000
Reexamination Certificate
active
07569132
ABSTRACT:
An article of manufacture and a process for making the article by the anodization of aluminum and aluminum alloy workpieces to provide corrosion-, heat- and abrasion-resistant ceramic coatings comprising titanium and/or zirconium oxides, and the subsequent coating of the anodized workpiece with polytetrafluoroethylene (“PTFE”) or silicone containing coatings. The invention is especially useful for forming longer life PTFE coatings on aluminum substrates by pre-coating the substrate with an anodized layer of titanium and/or zirconium oxide that provides excellent corrosion-, heat- and abrasion-resistance in a hard yet flexible film.
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Cameron Mary K.
Henkel KGaA
Leader William T
Ryan Patrick
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