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Glass articles with low-friction coatings

  • US 9,763,852 B2
  • Filed: 02/28/2013
  • Issued: 09/19/2017
  • Est. Priority Date: 02/28/2012
  • Status: Active Grant
First Claim
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1. A coated glass article comprising:

  • a glass container comprising a first surface and a second surface opposite the first surface, wherein the first surface is an exterior surface of the glass container and the glass container is formed from an alkali aluminosilicate glass having a Class HGA 1 hydrolytic resistance when tested according to the ISO 720-1985 testing standard; and

    a low-friction coating bonded to at least a portion of the first surface of the glass container, the low-friction coating having a thickness of less than or equal to about 1 micron and comprising;

    a polymer selected from the group consisting of polyimides, fluoropolymers, silsesquioxane-based polymers, and silicon resins; and

    a coupling agent disposed between the polymer and the first surface of the glass body, whereinthe portion of the first surface of the coated glass container with the bonded low-friction coating has a coefficient of friction of less than or equal to 0.7 relative to a like-coated glass container;

    the coated glass container is thermally stable after depyrogenation at a temperature of at least about 260°

    C. for 30 minutes in air; and

    the coated glass container is a pharmaceutical package.

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