One-piece fiber reinforcement for a reinforced polymer combining aligned and random fiber layers
US9212437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Aug 4, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/659
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A one-piece fiber reinforcement for a reinforced polymer is described. In an embodiment, a one-piece reinforcement is fabricated by first assembling an interior randomly oriented fiber layer between two exterior aligned fiber layers. With all layers in face to face contact, a preselected number of fibers from the aligned layer is conveyed out of its aligned layer and threaded into at least the random fiber layer so that the conveyed fibers engage and mechanically and frictionally interfere with the random fibers. The fibers may be conveyed from one aligned layer to the other for yet greater interference. The interfering fibers serve to secure and interlock the layers together, producing a one-piece reinforcement which, when impregnated with a polymer precursor, shaped and cured may be incorporated in a polymer reinforced composite article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.