| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction material composition suitable for friction materials which reduce the goo sound and the sound pressure when the absolute moisture is high or when parked overnight and a friction material using this friction material composition. SOLUTION: A friction material composition contains a fibrous material, a binder, an organic friction controller and an inorganic friction controller. Here, the cashew dust used as a part of the organic friction controller is cured without using any crosslinking material, and the surface of the cashew dust is coated with 0.5 to 20.0 wt.% silicone rubber against the weight of the cashew dust. A friction material is prepared through heat pressure molding and subsequent heating of the above-mentioned friction material composition.
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