Fluorine-containing resin coated articles
Abstract
Abstract A PROCESS FOR PREPARING A COMPOSITE ALUMINUM ARTICLE HAVING AN INNER LAYER OF ALUMINUM, AN INTERMEDIATE INTEGRAL LAYER OF ALUMINUM OXIDE, AND AN OUTER LAYER OF A FLUORINE-CONTAINING RESINOUS MATERIAL COMPRISING ANODICLY OXIDIZING A CLEAN ALUMINUM METAL IN AN AQUEOUS BATH AT A TEMPERATURE BETWEEN 25*F. AND 80*F., SAID BATH CONTAINING BETWEEN 4% AND 7.34% OF SULFURIC ACID AND BETWEEN 0.5 AND 3% OF A CARBOXYLIC ACID, WHILE PASSING AIR THROUGH SAID AQUEOUS BATH TO FORM AN OXIDE COATING ON THE ALUMINUM METAL. THE OXIDE COATED ALUMINUM IS THEN RINSED AND IMMERSED IN A LIQUID AQUEOUS IMPREGNATION BATH CONTAINING FLUORINE-CONTAINING HYDROCARBON POLYMER RESIN PARTICLES TO FORM AN OUTER RESIN COATING AT LEAST ABOUT 0.0001 INCH THICK.
Inventors
- 👤 Charles P Covino
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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