Title:
FRICTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/131516
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a friction material which is obtained by molding a friction material composition that is a NAO material used in a disk brake pad, and which exhibits an excellent braking effect in a high-speed high-temperature region and has excellent abrasion resistance. In order to solve this problem, used is a friction material which is obtained by molding a friction material composition that is a NAO material which is used in a disk brake pad, contains a binder, a fiber substrate, an inorganic friction modifier and an organic friction modifier and which does not contain a copper component. In the friction material composition, spherical amorphous alumina particles having an average particle diameter of 100-300 µm are contained as the inorganic friction modifier at a quantity of 0.5-6 wt% relative to the overall quantity of the friction material composition. In addition, fluorine-based polymer particles are used as the organic friction modifier at a quantity of 0.5-5 wt% relative to the overall quantity of the friction material composition.
Inventors:
SHIMOZAKI AKIHIKO (JP)
TANABE TAKESHI (JP)
TANABE TAKESHI (JP)
Application Number:
PCT/JP2020/044506
Publication Date:
July 01, 2021
Filing Date:
November 30, 2020
Export Citation:
Assignee:
NISSHINBO BRAKE INC (JP)
International Classes:
C09K3/14; F16D69/02
Domestic Patent References:
| WO2017170560A1 | 2017-10-05 | |||
| WO2003052022A1 | 2003-06-26 | |||
| WO2004069954A1 | 2004-08-19 |
Attorney, Agent or Firm:
FUNAKOSHI Koko et al. (JP)
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