Stock material or miscellaneous articles – Composite – Of asbestos
Reexamination Certificate
2004-07-01
2008-10-28
Ahmed, Sheeba (Department: 1794)
Stock material or miscellaneous articles
Composite
Of asbestos
Reexamination Certificate
active
07442442
ABSTRACT:
Methods and systems utilize an atmospheric-pressure nitrogen dielectric-barrier discharge to treat the surface of polymer substances. The atmospheric-pressure nitrogen dielectric-discharge may be maintained with a level of H2O below a pre-defined amount, such as by measuring and controlling the H2O within a treater, to produce a surface treatment for a polymer substance that yields desirable characteristics. Furthermore, the H2O level may be measured and controlled according to a pre-defined amount or according to another parameter such as an analysis of the resulting polymer surface. For example, the polymer surface may be provided with an optimal added nitrogen-to-added oxygen ratio and/or an optimal stability based on washed and unwashed advancing contact angles such as by controlling the H2O level within the treater based on these analyses of the treated polymer.
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Getschel Joel A.
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3M Innovative Properties Company
Ahmed Sheeba
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