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THERMOFORMED PACKAGING ARTICLES WITH ALTERNATING INDIVIDUAL LAYERS OF GLASS AND PLASTIC

  • US 20190322080A1
  • Filed: 12/20/2016
  • Published: 10/24/2019
  • Est. Priority Date: 12/20/2016
  • Status: Active Application
First Claim
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1. A thermoformed packaging article comprising:

  • a draw depth within a range from 2.5 mm to 254 mm,a multilayer packaging film comprising a coextruded film comprising alternating layers of glass and plastic,wherein the number of glass layers is at least two and the number of plastic layers is at least one,wherein the multilayer packaging film has a total thickness within a range from 10 μ

    m to 250 μ

    m, andwherein the glass comprises on an elemental basis tin in a mole percentage within a range from 12.0 to 17.1, fluorine in a mole percentage within a range from 11.2 to 24.3, phosphorus in a mole percentage within a range from 12.1 to 19.6, and oxygen in a mole percentage within a range from 43.3 to 61.1.

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