Apparatus and process for improved thermoplastic prepreg materials
US5019427A · kind A · utility
7Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B15/125
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus and methods are disclosed for producing fiber reinforced thermoplastic materials having substantially reduced amounts of breakage of the fibers and substantially increased tensile strength. In the preferred embodiment, relatively large diameter rollers are used to guide the filaments through a slurry bath of powdered resin, and spray header means are provided in the slurry bath to forcefully contact the filaments with the resin in the slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.