Manufacturing method for fiber-reinforced resin sheet and manufacturing device therefor
US10099432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2011 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Feb 17, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0872
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided is a manufacturing method for a fiber-reinforced resin sheet, the method being able to favorably impregnate a reinforcing-fiber base material with a thermoplastic resin. A fiber-reinforced resin sheet S is manufactured by introducing a reinforcing-fiber base material F in sheet form and a thermoplastic resin P into the gap between a pair of impregnating rolls 10A, 10B and impregnating the reinforcing-fiber base material F with the thermoplastic resin P while rotating the pair of impregnating rolls 10A, 10B. The surface of each of the pair of impregnating rolls 10A, 10B has formed thereon a resin holding layer 12 that elastically deforms along the thickness direction thereof when the impregnating rolls are pressed against each other and holds the molten thermoplastic resin P therein so as to be able to discharge the thermoplastic resin P upon pressing of the impregnating rolls against each other. Upon pressing of the impregnating rolls against each other, the reinforcing-fiber base material F is impregnated with the thermoplastic resin P while the resin holding layer 12 is elastically deformed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.