Process For Manufacturing A Glazing Unit Having A Decorative Effect
Patent No. EP2739472 (titled "Process For Manufacturing A Glazing Unit Having A Decorative Effect") was filed by Saint Gobain on Jul 31, 2012. The application was issued on Feb 27, 2019.
Patent Summary
A process for manufacturing a laminated glazing unit joins a 3D textile coating core to at least one glazing substrate using an EVA lamination interlayer. To preserve the core's three-dimensional aesthetic and prevent crushing, the assembly undergoes a synchronized temperature and pressure profile. This comprises a heating phase, a temperature maintenance phase (100°C–140°C, preferably 130°C), and a cooling phase, occurring simultaneously with a vacuum application phase, a vacuum maintenance phase (0.5·10⁴ Pa to 2·10⁴ Pa, preferably 10⁴ Pa), and a return to ambient pressure. The vacuum is applied during at least part of the heating phase, which is implemented with an upward temperature slope of approximately 2.7°C/min. The cooling slope is approximately 2.7°C/min, and the pressure recovery slope is approximately 0.8·10⁴ Pa/min.
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Date
Description
EP2739472
- Application Number
- EP12750458A
- Filing Date
- Jul 31, 2012
- Status
- Opposition Rejected
- Aug 20, 2021
- Publication Date
- Feb 27, 2019
- External Links
- Slate, Register , Google Patents