Tempered Glass Bottle With Sandwich Structure
Patent No. EP4431472 (titled "Tempered Glass Bottle With Sandwich Structure") was filed by Vetropack Holding on Mar 15, 2024. The application was issued on Jun 25, 2025.
Patent Summary
A glass container comprises a wall section and a bottom section surrounding an inner volume. The container features a tempered section forming a sandwich structure consisting of an outer compression stress layer and an inner tensile stress layer. The bottom section includes a bottom tempered section. The thickness ratio between the wall thickness of the wall tempered section and the bottom thickness of the bottom tempered section is between 2 and 4.5. In some embodiments, the sandwich structure further includes an inner compression stress layer positioned inward of the inner tensile stress layer. The container may be manufactured via thermal treatment involving heating to 610°C–650°C followed by rapid cooling to 150°C–250°C using pressurized air.
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Date
Description
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EP4431472
- Application Number
- EP24163717A
- Filing Date
- Mar 15, 2024
- Status
- Granted And Under Opposition
- May 23, 2025
- Publication Date
- Jun 25, 2025
- External Links
- Slate, Register , Google Patents