Composite panel having noncombustible polymer matrix core
US11312109B2 · kind B2 · utility
0Cited by
8References
30Claims
0Family size
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Key dates
| Filing date | Sep 2, 2020 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Sep 2, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F13/0866
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composite panel structure of a polymer matrix core sandwiched by metal layers is described. The polymer matrix comprises 1-30 wt % fluoropolymer and 70-99 wt % of a flame retardant mineral. The fluoropolymer may be polyvinylidene fluoride (PVDF) with a high limiting oxygen index, which confers fire resistance properties to the polymer matrix and the composite panel structure. The composite panel structure may be used on the exterior of buildings and may fulfill building code requirements for the polymer matrix core being noncombustible as determined by ASTM E136 and CAN/ULC S114 compliance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.