Friction material for brake
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United States of America Patent
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-
Oct 21, 2003
Grant Date -
Jul 4, 2002
app pub date -
Oct 31, 2001
filing date -
Oct 31, 2000
priority date (Note) -
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Abstract
The present invention provides a friction material for brake not containing materials including heavy metals such as Cu or antimony. The friction material contains a fibrous component, a binding component and a friction modifying component, wherein magnesium oxide (MgO) and graphite are contained in a friction material in the amount of 45 to 80 vol %, and volume ratio (MgO/graphite) of magnesium oxide (MgO) to graphite is 1/1 to 4/1.
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