Article coated with coating film, and functional article coated with coating film using the same
AssigneeNippon Sheet Glass Co., Ltd.
InventorToyoyuki Teranishi
Life of this patent
Estimating the term…
Abstract
The present invention provides a film-coated article coated by a film having silicon oxide as a main component, in which recesses and projections conferring super hydrophobicity or super hydrophilicity are formed. This film includes minute projections and columnar projections, and the columnar projections are formed by local growth of the minute projections in a thickness direction of the film or formed with a plurality of minute particles constituting the minute projections laminated locally.
Claims21
A film-coated article comprising:
- a substrate;
- and
- a film that contains silicon oxide as a main component and that is formed on a surface of the substrate,
- wherein the film comprises minute projections and columnar projections, and the columnar projections are formed by local growth of the minute projections in a thickness direction of the film or formed with a plurality of minute particles that constitute the minute projections and that are stacked locally on the film.
A method for producing a film-coated article comprising a substrate and a film that contains silicon oxide as a main component and that is formed on a surface of the substrate, the method comprising:
- applying a solution containing a silicon-containing material to a surface of the substrate;
- and
- maintaining a state where the substrate is wetted with the solution for a time period sufficient for allowing formation of minute projections containing silicon supplied from the silicon-containing material and columnar projections on the surface of the substrate, the columnar projections being formed by local and irregular growth of the minute projections in a film thickness direction or being formed with a plurality of minute particles that constitute the minute projections and that are stacked locally on the surface of the film.
A solution to be applied for forming a film comprising:
- a solvent containing a silicone oil as a main component;
- and
- a chlorosilyl group-containing compound dissolved in the solvent.
Dependencies are inferred from the claim text.