Title:
フィルタ材料としてのクリストバライトを含む湿式摩擦材料
Document Type and Number:
Japanese Patent JP6820330
Kind Code:
B2
Abstract:
A friction material for a clutch comprising a plurality of fibers and a filler material including crystalline silica. The crystalline silica is cristobalite in an example aspect. A friction material for a clutch comprising: a plurality of fibers; and, a filler composition including: an amorphous silica-containing material; and, a plurality of crystalline silica particles, said particles having a Mohs hardness at least 6 and characterized by a rounded morphology. A friction material for a clutch comprising: a plurality of fibers; a filler composition including: diatomaceous earth; and, cristobalite including a plurality of particles characterized by a median particle size in a range from about 0.5 μm to about 5 μm; and, a resin; and, the friction material includes cristobalite in a range of from about 2% to about 20% by weight based on total weight of the friction material and has a static friction coefficient of at least 0.115.
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Inventors:
Mulatto Buchan
Rashid Farahati
Rashid Farahati
Application Number:
JP2018522778A
Publication Date:
January 27, 2021
Filing Date:
November 04, 2016
Export Citation:
Assignee:
Schaeffler Technologies AG & Co. KG
International Classes:
C09K3/14; F16D13/62; F16D69/02
Domestic Patent References:
| JP2004138121A | ||||
| JP200856893A | ||||
| JP2000309641A | ||||
| JP2012514679A | ||||
| JP200935658A |
Foreign References:
| US20080308365 |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima