Composite building materials and methods of manufacture
US11572646B2 · kind B2 · utility
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226References
25Claims
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Key dates
| Filing date | Mar 30, 2021 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Mar 31, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2607/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An example composite building material includes one or more layers of polymeric fibers, binding agent, and optional fillers, and at least one surface layer of resin-impregnated paper disposed above and/or below the one or more layers. The one or more layers can include a core layer with longer polymeric fibers and top and bottom layers with shorter polymeric fibers. A method of manufacturing the composite building material includes forming the one or more layers, applying the at least one surface layer above and/or below the one or more layers, and heating and pressing the combined layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.