Process for the manufacture of a fibrous preform formed of refractory fibers for producing a composite material article
US5228175A · kind A · utility
10Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1991 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Dec 2, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G3/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fibrous preform is formed from a yarn composed of long discontinuous fibers made of a refractory material or its precursor. The discontinuous fibers are disposed parallel to one another without twist, and the integrity of the yarn is achieved by a covering yarn made of a fugitive material. The fibrous preform is intended to be densified by a matrix material for the manufacture of a composite material article. The covering yarn is eliminated before the preform is densified by the matrix material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.