Method and machine for producing multiaxial fibrous webs
US6585842B1 · kind B1 · utility
64Cited by
5References
48Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/298
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A plurality of unidirectional sheets (30a, 30b, 30c) are superposed in different directions and they are bonded together. At least one of the unidirectional sheets is made by spreading a tow so as to obtain uniform thickness, width not less than 5 cm, and a weight of no more than 300 g/m2, cohesion being imparted to the sheet so as to enable it to be handled prior to being superposed with other sheets. Advantageously, the unidirectional sheets are made of carbon fibers and are obtained by spreading out large tows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.