Polymer article having a thin coating formed on at least one of its sides by plasma and method for producing such an article
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United States of America Patent
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May 6, 2014
Grant Date -
Feb 12, 2009
app pub date -
Jun 16, 2006
filing date -
Jun 16, 2005
priority date (Note) -
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Abstract
Polymer article having a thin coating on at least one of its side, characterized in that said coating comprises a first coating of SiOxCyH2 which is a plasma polymerized tetramethylsilane deposited on the surface on said polymer article, the x value being between 0 and 1.7, the y value being between 0.5 and 0.8, the z value being between 0.35 and 0.6 for said first SiOxCyHz coating and a second coating of SiOxCyHz which is a plasma polymerized tetramethylsilane deposited on the surface on said first coating, the x value being between 1.7 and 1.99, the y value being between 0.2 and 0.7, the z value being between 0.2 and 0.35 for said second SiOxCyHz coating and in that the thickness of said first coating is from about 1 nanometer to about 15 nanometers and in that the thickness of said second coating is from about 10 nanometers to about 100 nanometers, preferentially around 30 nanometers.
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