Control of resin flow during molding of composite articles
US7255549B2 · kind B2 · utility
15Cited by
14References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2003 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Jul 28, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/48
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The flow of resin during the molding of composite articles is controlled by forming areas of immobilized resin during the infusion of resin into the fibrous body. The immobilized resin is formed using an immobilization agent that interacts with the infused resin to form a high viscosity resin barrier that is effective in blocking the flow of non-immobilized resin. The barriers of immobilized resin are located within the fibrous body so as to control the flow of non-immobilized resin during the molding process to prevent or least reduce resin depletion and to selectively block resin flow from the mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.