Friction materials and their manufacture
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United States of America Patent
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-
May 5, 1987
Grant Date -
N/A
app pub date -
Mar 4, 1985
filing date -
Mar 3, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A non-asbestos clutch facing has an actual density such that the facing is permeable to air. The clutch facing is preferably a moulded facing containing short reinforcing fibres and having an actual density not greater than 90% of theoretical. The facing may be made by a technique in which a pre-form is prepared, moulded to the desired density and then cured under a pressure such as not to cause substantial further density change.
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