C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/83 (2006.01) D01F 9/22 (2006.01) F16D 69/02 (2006.01)
Patent
CA 2417247
The present invention relates to carbon-matrix composites, such as carbon- carbon composites, and a method for forming them by forming a fabric of fusible and infusible fibers which can be processed and carbonized to form a composite. The methods disclosed herein permit preparation of composites which are particularly thin, uniform, and highly pure. The invention also relates to preprocessed fabrics and precarbonized composites, such as those comprising carbon or oxidized polyacrylonitrile fibers and fusible polyacrylonitrile fibers.
La présente invention concerne des composites carbone-matrice tels que des composites carbone-carbone ainsi qu'un procédé de formation de ces derniers qui consiste à former un textile de fibres fusibles et non fusibles qui peut être traité et carbonisé pour former un composite. Les procédés selon l'invention permettent de préparer des composites qui sont particulièrement minces, uniformes et extrêmement purs. Cette invention concerne également des textiles prétraités et des composites carbonisés, tels que ceux comprenant des fibres de carbone ou de polyacrylonitrile oxydées et des fibres fusibles de polyacrylonitrile.
Gaffney John J.
Loszewski Raymond C.
Ballard Material Products Inc.
Ballard Power Systems Inc.
Borden Ladner Gervais Llp
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