Title:
FRICTION MATERIAL COMPOSITION, AND FRICTION MATERIAL AND FRICTION MEMBER EACH OBTAINED THEREFROM
Document Type and Number:
WIPO Patent Application WO/2017/183155
Kind Code:
A1
Abstract:
Provided is a friction material composition that does not contain copper, which can be a cause of the pollution on rivers, lakes, oceans, etc., or contains copper in an amount of 0.5 mass% at most, and that nevertheless can give a friction material which is excellent in terms of coefficient of friction during high-speed high-load braking, wear resistance, and the property of not attacking the mating member and which is inhibited from squealing. Also provided are a friction material and a friction member which were each obtained from the friction material composition.
The friction material composition comprises a binder, an organic filler, an inorganic filler, and a fibrous base, and has a copper content of 0.5 mass% or less in terms of copper element amount or contains no copper. A phenolic resin containing a silicone rubber dispersed therein is contained as some or all of the binder in an amount of 5-10 mass%, and zirconium oxide is contained as some of the inorganic filler in an amount of 20-33 mass%.
Inventors:
MATSUBA KAZUAKI (JP)
Application Number:
PCT/JP2016/062647
Publication Date:
October 26, 2017
Filing Date:
April 21, 2016
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
International Classes:
F16D69/02; C09K3/14
Foreign References:
| JP2014031469A | 2014-02-20 | |||
| JP2014122314A | 2014-07-03 | |||
| JP2002266915A | 2002-09-18 | |||
| CN103881657A | 2014-06-25 | |||
| JP2004010790A | 2004-01-15 | |||
| JP2012197352A | 2012-10-18 |
Other References:
See also references of EP 3321338A4
Attorney, Agent or Firm:
SUENARI, Mikio (JP)
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