Surface treatment method
AssigneesBridgestone Corporation, Satiko Okazaki, Masuhiro Kogoma
InventorsYukihiro Kusano, Masato Yoshikawa, Kazuo Naito, Yukio Fukuura, Satiko Okazaki, Masuhiro Kogoma
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Abstract
Plates, sheets, fibers and other articles can be rendered water repellent by subjecting the articles at their surface to a glow discharge plasma under atmospheric pressure. The treating gas is a mixture of an inert gas and a fluorinated compound in the form of a cyclic or unsaturated hydrocarbon having some or all of the hydrogen atoms thereof replaced by halogen groups including fluorine atoms. The surface treatment lowers the surface energy of the articles in a long lasting manner.
Claims6
In a method for surface treating an article by subjecting the article at its surface to glow discharge plasma treatment under atmospheric pressure with a gas containing a fluorinated compound, thereby lowering the surface energy of the article,
- the improvement wherein said fluorinated compound is a cyclic or unsaturated hydrocarbon having some or all of the hydrogen atoms thereof replaced by halogen groups including fluorine atoms.
Dependencies are inferred from the claim text.