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Process for making of glass articles with optical and easy-to-clean coatings

  • US 9,957,609 B2
  • Filed: 05/30/2013
  • Issued: 05/01/2018
  • Est. Priority Date: 11/30/2011
  • Status: Active Grant
First Claim
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1. A process for vacuum depositing an optical coating and an easy-to-clean (ETC) coating onto a glass substrate, the process comprising:

  • providing a coating apparatus having an optical coating chamber for deposition of at least one optical coating and an ETC coating chamber for deposition of an ETC coating;

    introducing a horizontally-oriented glass substrate to be coated into the optical coating chamber under a pressure of less than or equal to 10

    4
    Torr, the glass substrate having a first surface, a second surface opposite the first surface, and a thickness between the first surface and the second surface,depositing at least one optical coating onto the glass substrate in the optical coating chamber;

    transferring the glass substrate to the ETC coating chamber without breaking vacuum;

    reorienting the glass substrate in the ETC coating chamber such that the glass substrate is vertically-oriented;

    depositing an ETC coating on the at least one optical coating in the ETC coating chamber, the ETC coating selected from the group consisting of fluoroalkylsilanes, perfluoroalkylsilanes, perfluoroalkyl alkyl silanes, perfluoropolyethersilanes, perfluoropolyether alkoxy silanes, perfluoroalkyl alkoxy silanes, fluoroalkylsilane (non fluoroalkylsilane) copolymers, mixtures of fluoroalkylsilanes, and mixtures thereof; and

    removing the glass substrate from the coating apparatus to provide a glass article having the optical coating formed thereon and the ETC coating formed on the optical coating.

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