Otsuka Chemical Co., Ltd.

Otsuka Kagaku Kabushiki Kaisha

Minoru Takenaka

Hiroshi Ogawa

Hiroshi Shibutani

A friction material characterized as containing, as a friction control agent, 3-50% by weight of one or more substances selected from flat layered titanates represented by the general formula (1), A M Ti O (wherein A represents an alkaline metal other than lithium; M represents one or more elements selected from lithium, magnesium, zinc, nickel, copper, iron, aluminum, gallium and manganese; x is a number of 0.5-1.0; and y is a number of 0.25-1.0) and flat layered titanic acids represented by the general formula (2), H (M&prime; ) Ti O .nH O (wherein M&prime; represents one or more elements selected from lithium, magnesium, zinc, nickel, copper, iron, aluminum, gallium and manganese; x is a number of 0.5-1.0; y is a number of 0.25-1.0; z is a number of 0 or 1; and n is a number of 0&lE;n&lE;2).

Friction material

An object of the present invention is to provide a friction material having excellent friction and wear characteristics even at a high temperature, and excellent productivity and workability. The friction material of the present invention is blended with scaly boehmite as a friction adjustment agent.

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Osaka, Japan

Minoru Takenaka