D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
D01F 9/127 (2006.01) C04B 14/38 (2006.01) C04B 30/02 (2006.01) D01F 11/12 (2006.01) H01M 4/96 (2006.01) H01M 4/58 (2006.01)
Patent
CA 2099808
There are disclosed vapor-grown and graphitized carbon fibers capable of forming composite materials having the vapor-grown and graphitized carbon fibers Contained at a high packing density and forming molded members consisting substantially solely of the vapor-grown and graphitized carbon fibers, a process for the preparation of the vapor-grown and graphitized carbon fibers, the molded member, and the composite member. The vapor-grown and graphitized carbon fibers have a mean fiber diameter of 5 µm or smaller, a mean fiber length of 90 µm or shorter, a mean aspect ratio of frame 1 to 18, and a spin density of 8 x 10 1a spins/g or less, when measured by the electron spin resonance absorption method. such vapor-grown and graphitized carbon fibers are prepared by graphitizing the vapor-grown carbon fibers at 2,000°C or higher and then fracturing them by applying a high impact thereto. The molded members can be formed, for example, by hydrostatic pressure-isotropic pressure molding techniques. The composite members can be prepared by compounding the vapor-groom and graphitized carbon fibers with the matrix.
Harada Minoru
Niiyama Masanori
Nikkiso Company Limited
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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