Method for production of fiber-reinforced thermosetting resin molding material
US5078934A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1989 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Mar 28, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B15/122
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a method for the production of a fiber-reinforced thermosetting resin molding material by a procedure of leading a mixture of a liquid thermosetting resin composition with reinforcing fibers to an impregnation apparatus and deaerating the mixture and impregnating the reinforcing fibers with the resin composition, apparatus including at least one pair of vertically opposed endless belts adapted to be driven in the directions of taking in and nipping the mixture and at least one pair of vertically opposed rollers adapted to depress the mixture across the endless belts, at least one of the opposed rollers being a flexible roller possessing elasticity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.