Long-term bendable glass material, and method for the production of a long-term bendable glass material
AssigneeSchott AG
InventorsClemens Ottermann, Kurt Nattermann, Markus Heiß-Chouquet, Jürgen Vogt, Thomas Roßmeier, Andreas Habeck
Life of this patent
Estimating the term…
Abstract
A method for producing long-term bendable glass material includes: bending a glass material in a bending radius in a range of 1 mm to 107 mm; storing the bent glass material for a time period of at least 1 day; inspecting at least a portion of the bent glass material for damage after the storing; and classifying the inspected bent glass material as a reject if damage is detected or as a long-term bendable glass material if no damage is detected.
Claims16
A method for producing long-term bendable glass material, comprising:
- bending a glass material in a bending radius in a range of 1 mm to 107 mm;
- winding said glass material onto a roll, said glass material having a maximum thickness of 500 μm and a minimum thickness of 3 μm;
- storing said bent glass material for a time period of at least 1 day;
- inspecting at least a portion of said bent glass material for damage after said storing;
- and classifying said inspected bent glass material as a reject if damage is detected or as a long-term bendable glass material if no damage is detected.
A method for proof testing glass material, comprising:
- bending a glass material;
- storing said bent glass material for a period of at least 1 day;
- determining a crack is present in the bent glass material;
- determining a crack depth of the crack in said glass material after said storing;
- comparing said determined crack depth with a predefined crack depth;
- and
- classifying said glass material as a long-term bendable glass material if said crack depth is less than said predetermined crack depth such that a remaining probability of breaking is less than 0.1 for a maximum storage period of half a year.
Dependencies are inferred from the claim text.