Title:
IRON OXIDE PARTICLE POWDER FOR FRICTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2017/170532
Kind Code:
A1
Abstract:
The present invention relates to a friction material used mainly for resin type brake pads formed by resin molding, and provides an iron oxide particle powder for friction materials, the iron oxide particle powder having excellent abrasive properties, good outgassing performance, excellent mechanical strength such that improved dispersion in resin can be expected, and a large specific surface area. The iron oxide particle powder for friction materials is characterized in that a magnetite crystal phase is a major component, primary particles have a needle-like shape, agglomerated particles have an average particle size of 10 to 150 μm, and in that the iron oxide particle powder includes 0.01 to 2.0 wt% of a heterogeneous element.
Inventors:
MARUYAMA SHINSUKE (JP)
WATANABE KOZO (JP)
FUJII YASUHIKO (JP)
WATANABE KOZO (JP)
FUJII YASUHIKO (JP)
Application Number:
PCT/JP2017/012608
Publication Date:
October 05, 2017
Filing Date:
March 28, 2017
Export Citation:
Assignee:
TODA KOGYO CORP (JP)
International Classes:
C01G49/08; C09K3/14; F16D69/02
Domestic Patent References:
| WO2016175284A1 | 2016-11-03 |
Foreign References:
| JP2012211054A | 2012-11-01 | |||
| JP2000178538A | 2000-06-27 |
Download PDF: