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Soil-resistant coating for glass surfaces

  • US 6,939,446 B2
  • Filed: 06/17/2003
  • Issued: 09/06/2005
  • Est. Priority Date: 12/21/1998
  • Status: Expired due to Term
First Claim
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1. A method of rendering surfaces of a pane of glass resistant to soiling and staining, comprising:

  • a) providing a sheet of glass having a clean interior surface and a clean exterior surface;

    b) sputtering silica directly onto the interior surface of the sheet of glass, thereby yielding a first water-sheeting coating having a contact angle with water below about 25°

    which causes water applied to said interior surface to sheet; and

    c) sputtering silica directly onto the exterior surface of the sheet of glass, thereby yielding a second water-sheeting coating having a contact angle with water below about 25°

    which causes water applied to said exterior surface to sheet.

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