Polymer article having a thin coating formed on at least one...

C - Chemistry – Metallurgy – 23 – C

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C23C 30/00 (2006.01)

Patent

CA 2612167

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 SiOxCyHzcoating 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.

Article en polymère ayant un revêtement mince sur au moins l'un de ses côtés, caractérisé en ce que ledit revêtement comprend un premier revêtement de SiOxCyHz,lequel est un tétraméthylsilane polymérisé par plasma déposé sur la surface dudit article en polymère, la valeur de x étant comprise entre 0 et 1,7, la valeur de y étant comprise entre 0,5 et 0,8 et la valeur de z étant comprise entre 0,35 et 0,6 pour ledit premier revêtement de SiOxCyHz, et un second revêtement de SiOxCyHz, lequel est un tétraméthylsilane polymérisé par plasma déposé sur la surface dudit premier revêtement, la valeur de x étant comprise entre 1,7 et 1,99, la valeur de y étant comprise entre 0,2 et 0,7 et la valeur de z étant comprise entre 0,2 et 0,35 pour ledit second revêtement de SiOxCyHzet en ce que l'épaisseur dudit premier revêtement va d'environ 1 nanomètre à environ 15 nanomètres et en ce que l'épaisseur dudit second revêtement va d'environ 10 nanomètres à environ 100 nanomètres, de préférence est autour de 30 nanomètres.

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