Process for preparing shaped bodies of thermoplastic polymers reinforced with long fibres
US5362431A · kind A · utility
11Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Feb 4, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B15/122
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Process for preparing shaped bodies of thermoplastic polymers by means of extrusion, injection, or spin molding of granules having a length within the range of from 2 to 100 mm, obtained by cutting a continuous calendered filament constituted by a bundle of fibres impregnated with a thermoplastic polymer in powder form and coated with an outer sheath constituted by a thermoplastic polymer which is the same as, or different from, the polymer which constitutes said powder, and having a melting point equal to or higher than the powder polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.