Title:
FRICTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/015003
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a friction material which is used for disc brake pads of automobiles and the like, is obtained by molding a friction material composition of an NAO material, and can suppress brake vibration during high-temperature braking. In order to achieve the purpose, a friction material obtained by molding a friction material composition of an NAO material, the friction material composition including a binder, a fiber matrix, an organic friction adjuster, an inorganic friction adjuster, and a lubricant, but not including a copper component, wherein in the friction material composition used in the friction material, the binder is contained in an amount of 5-9 wt% with respect to the total amount of the friction material composition, a silicone rubber-modified phenolic resin is contained, as a portion of the binder, in an amount of 1-4 wt% with respect to the total amount of the friction material composition, a cashew dust is contained as an organic friction adjuster in an amount of 1-4 wt% with respect to the total amount of the friction material composition, a fused silica having an average particle diameter of 15-40 μm is contained as an inorganic f riction adjuster, in an amount of 0.5-3 wt% with respect to the total amount of the friction material composition, and a fused zirconium silicate beads having an average particle dimeter of 10-30 μm is contained, as an inorganic friction adjuster, in an amount of 0.1-2 wt% with respect to the total amount of the friction material composition.
Inventors:
SHIMOZAKI AKIHIKO (JP)
NISHIKAWA TAKUTO (JP)
TANABE TAKESHI (JP)
NISHIKAWA TAKUTO (JP)
TANABE TAKESHI (JP)
Application Number:
PCT/JP2020/026982
Publication Date:
January 28, 2021
Filing Date:
July 10, 2020
Export Citation:
Assignee:
NISSHINBO BRAKE INC (JP)
International Classes:
C09K3/14; F16D69/02
Domestic Patent References:
| WO2017061373A1 | 2017-04-13 | |||
| WO2015072441A1 | 2015-05-21 |
Foreign References:
| JP2006206785A | 2006-08-10 | |||
| JPH10274264A | 1998-10-13 | |||
| JP2016098362A | 2016-05-30 | |||
| JP2016121243A | 2016-07-07 | |||
| JP2017193612A | 2017-10-26 |
Other References:
See also references of EP 4006120A4
Attorney, Agent or Firm:
FUNAKOSHI Koko et al. (JP)
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