Process for manufacturing composite materials
US9187606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2011 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Sep 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a prepreg comprising a structural layer of conductive fibers comprising thermosetting resin in the interstices, and a first outer layer of resin comprising thermosetting resin, and comprising a population of conductive free filaments located at the interface between the structural layer and the outer resin layer which, when cured under elevated temperature, produces a cured composite material comprising a cured structural layer of packed conductive fibers and a first outer layer of cured resin, the outer layer of cured resin, comprising a proportion of the population of conductive free filaments dispersed therein, and to a process for manufacturing prepregs wherein the electrically conductive fibers pass a fiber disrupting means to cause a proportion of the fibers on an external face of the sheet to become free filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.