Pliable tackified fiber tow and method of producing same
US5837372A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | May 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pliable tackified tow comprises a plurality of fibers having a tackifier present at about 1-15 per cent by weight uniformly distributed among the fibers. The tackifier is a solid material which has been fractured through fiber displacement such, as by physical bending, to produce a fiber tow that is pliable. The pliable tackified tow can be used in braiding, weaving, or filament winding operations to produce dry fabric which contains a tackifier between the individual fibers such that preforms produced using the tackified tow can be readily shaped and hardened to retain that shape prior to molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.