Fiber reinforced thermoplastic material
US4640861A · kind A · utility
27Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1984 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Jun 7, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249945
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fiber reinforced material is made by passing a preheated tensioned filament array over an arcuate extruder head where thermoplastic polymer is flowed through the filament array to expel air from the array while coating the filaments with polymer. The filaments comprise 50 to 75 percent by volume of the material and the polymer has a relative viscosity of at least 50.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.