Continuous reinforcing fiber sheet and manufacturing method thereof
US6808796B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 17, 2000 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Dec 9, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249952
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A continuous reinforcing fiber sheet in which reinforcing fibers are arranged at an arbitrary angle to the main axis. The continuous reinforcing fiber sheet is well applicable to pultrusion forming without the risk of the reinforcing fibers being dispersed. This permits use of the continuous reinforcing fiber sheet in a long fiber-reinforced plastic structural member having remarkably improved torsional rigidity. The continuous reinforcing fiber sheet 1 has a continuous resin-penetrable support sheet 2 and a reinforcing fiber layer 3 held by the resin-penetrable support sheet 2. Long reinforcing fibers 4 in the reinforcing fiber layer 3 have substantially a certain length (F) and are arranged in the longitudinal direction of the resin-penetrable support sheet 2 at a prescribed angle (&agr;) to the longitudinal direction of the resin-penetrable support sheet 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.