Fibrous preforms with elongated slot perforations for use in making composite parts
US10682819B2 · kind B2 · utility
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2References
18Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 7, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Feb 8, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24975
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention concerns preforms made with a new intermediate material composed of a unidirectional layer of carbon fibers with a weight of 100 to 280 g/m2, associated on each of its faces, with a web of thermoplastic fibers having a thickness of 0.5 to 50 microns, preferably 3 to 35 microns, the intermediate material having a total thickness of 80 to 380 microns, preferably from 90 to 320 microns, and a process for manufacturing composite parts from such preforms and the resulting composite parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.