Method for making fiber-reinforced plastics
US4927579A · kind A · utility
89Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Apr 8, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/53
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for adding intact fiber reinforcing material into thermoplastic resin compositions for toughening purposes without breakage of the fibers, including blending a polymeric solution and chopped fibers in a mixture at low to medium shear, injecting the resulting mixture into an extruder with a resin to be reinforced at an entry point positioned very near a vacuum point, and then removing the solvent for recycle while the reinforcing glass fiber and polymer blend is extruded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.