FRICTION MATERIAL COMPOSITION

Provided is a friction material composition capable of giving friction materials which, although low in copper or copper-alloy content, have excellent fade resistance at high temperature and give a satisfactory pedal feeling during braking. The friction material composition has a binder, a fibrous b...

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Bibliographische Detailangaben
Hauptverfasser: MAGARA Akihito, SUN Shouqi
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Provided is a friction material composition capable of giving friction materials which, although low in copper or copper-alloy content, have excellent fade resistance at high temperature and give a satisfactory pedal feeling during braking. The friction material composition has a binder, a fibrous base material, an inorganic filler, and an organic filler, and contains no copper or has a copper content of 0.5 mass or less. The inorganic filler contains two ³-alumina powders, i.e., a first ³-alumina powder, which has a median diameter (D 50 ) of 0.8-60 µm, and a second ³-alumina powder, which has a median diameter (D 50 ) of 80-400 µm.