Curable liquid sealant used as vacuum bag in composite manufacturing
US6869561B2 · kind B2 · utility
39Cited by
15References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2004 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/548
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The inventive method concerns a process of transferring resin into reinforcing material used in the manufacture of composite articles. A first step in the method involves positioning at least one layer of the reinforcing material on the surface of an open mold. Subsequently, a sealant layer is applied in liquid form over the reinforcing material to create an airtight chamber encapsulating the reinforcing material between the sealant layer and the mold. After the sealant layer is allowed to cure, resin is drawn through the reinforcing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.