| 摘要 |
PROBLEM TO BE SOLVED: To provide a friction material composition for making a friction material which exhibits a good friction coefficient and prevents the occurrence of metal catch and the roughening of the surface of a facing material and is friendly to the environment; and to provide the friction material using the friction material composition. SOLUTION: The friction material composition which comprises a fiber substrate, a binding material, an organic filler and an inorganic powder, characterized in that it contains an inorganic powder having a Mohs hardness of 5 or more and less than 7 in an amount of 7 to 30% by weight relative to the total weight of the friction material composition, an inorganic powder having a Mohs hardness of more than 7 in an amount of 0.5 to 4% by weight relative to the total weight of the friction material composition, and tin sulfide in an amount of 2 to 10% by weight relative to the total weight of the friction material composition. COPYRIGHT: (C)2008,JPO&INPIT
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