Title:
FRICTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/187022
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a friction material for use in disc brake pads obtained by molding a non-asbestos-organic (NAO) friction material composition, the friction material being inhibited from making an abnormal noise in stopping while complying with laws and regulations regarding copper-component content. This friction material, which is for use in disc brake pads, is obtained by molding an NAO fiction material composition comprising a binder, a fibrous base, an inorganic friction regulator, an organic friction regulator, and a lubricating material and containing no copper component, and is characterized in that the friction material composition contains fluoropolymer particles having an average particle diameter of 10-1,000 μm as the lubricating material in an amount of 0.5-5 wt% with respect to the whole friction material composition and contains zirconium oxide having an average particle diameter of 1-8 μm as the inorganic friction regulator in an amount of 15-35 wt% with respect to the whole friction material composition.
Inventors:
TAKADA TOSHIYA (JP)
YAMAMOTO KAZUHIDE (JP)
YAMAMOTO KAZUHIDE (JP)
Application Number:
PCT/JP2021/006750
Publication Date:
September 23, 2021
Filing Date:
February 24, 2021
Export Citation:
Assignee:
NISSHINBO BRAKE INC (JP)
International Classes:
C09K3/14; F16D69/02
Domestic Patent References:
| WO2004069954A1 | 2004-08-19 |
Foreign References:
| JP2015093936A | 2015-05-18 | |||
| JPH09151367A | 1997-06-10 | |||
| JP2000160135A | 2000-06-13 | |||
| JP2016035005A | 2016-03-17 | |||
| JP2015093936A | 2015-05-18 | |||
| JP2016035005A | 2016-03-17 |
Other References:
See also references of EP 4122993A4
Attorney, Agent or Firm:
FUNAKOSHI Koko et al. (JP)
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