Method for the impregnation of filament wound structures with thermoplastic binders
US4865787A · kind A · utility
12Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1988 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | May 2, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B15/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Filament wound or dry lay-ups of structural shapes are impregnated with a binder of thermoplastic resin. Impregnation is achieve by adding a polymer solution to a centrifuge containing reinforcing material. The centrifuge is spun at high rotational speed. Solution is metered into the centrifuge and contacts the inner surface of the reinforicng material. A preheated carrier gas flow is circulated in the centrifuge using baffles, then released to a solvent recovery system. Alternatively, vacuum drying to recover solvent can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.