Near atmospheric pressure treatment of polymers using helium discharges
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United States of America Patent
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Sep 24, 1996
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N/A
app pub date -
Sep 1, 1994
filing date -
Sep 1, 1994
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Abstract
The present invention is a method and apparatus for treating a polyester support such as polyethylene napthalate or polyethylene terephthalate. The treatment is carried out at near atmospheric pressure in a gas of helium and nitrogen or oxygen. The treatment uses anodized aluminum electrodes and an atmospheric glow discharge results when the electrodes are connected to an RF generator and spaced about 2 mm apart. The process and apparatus improve adhesion of subsequently coated emulsions on the polyester support.
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