Method of making foam-filled composite products
US6117376A · kind A · utility
83Cited by
11References
8Claims
0Family size
Inventor
Key dates
| Filing date | Dec 9, 1997 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Dec 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making foam-filled parts having fiber-reinforced skins or surfaces is disclosed. Mold halves of pressure-resisting thermally insulative material are covered with a release material, which is then covered with the fiber skins. The fiber skins are coated with heat-curable resin, and the mold halves are then clamped together to form a cavity. A catalyzed foam-forming mixture is poured into the cavity. The mixture foams and expands to the full volume of the cavity, and while it hardens generates heat sufficient to cure the resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.