Hot-melt prepreg tow process
US4804509A · kind A · utility
17Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1986 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Dec 17, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/504
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Process for producing resin-impregnated fiber tow or strand in the form of prepreg tape which includes unique coating wheels for surface-coating the strand with molten, flowable resin and a kneading section to work the strand and disperse the molten resin uniformly among and between the individual fibers of the strand. The strand, after chilling, has good dimensional stability and is useful as prepreg in forming composite structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.