Non-asbestos friction material composition, friction material using same, and friction member
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United States of America Patent
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May 28, 2019
Grant Date -
Sep 5, 2013
app pub date -
Nov 7, 2011
filing date -
Nov 19, 2010
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Abstract
A non-asbestos frictional material composition is provided, which is capable of provide a frictional material with low environmental load and with excellent friction coefficient, anti-crack properties, and abrasion resistance compared with conventional ones. Furthermore, a frictional material and a friction member formed by using this non-asbestos frictional material composition are provided. The non-asbestos frictional material composition containing a binder, an organic filler, an inorganic filler, and a fiber base material includes: copper in a content of 5 mass % or less as a copper element; a metal fiber other than a copper fiber and a copper alloy fiber in a content of 0.5 mass % or less; and mica and graphite with a particle size of 90 μm or less but not containing graphite with a particle size of more than 90 μm.
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