Natural fiber composite sandwich panel
US11926132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2020 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Oct 21, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2605/003
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a composite sandwich panel. The composite sandwich panel includes a core, a first thermoplastic layer applied to a first side of the core, and a second thermoplastic layer applied to a second side of the core. The core is provided in the form of a wave board formed from natural fiber. Also provided is a process for manufacturing a composite sandwich panel. The process comprises extruding a first and second thermoplastic layer into respective flat sheets, forming a consolidated natural fibrous mat, and molding the consolidated natural fibrous mat into a consolidated core having a predetermined geometry. The first and second thermoplastic layers, as well as the consolidated core are heated to a predetermined molding temperature. The heated consolidated core is placed between the heated first and second thermoplastic layers, and the assembly is molded in a molding press into a desired shape determined by product design intent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.