Fibrous material-based friction member
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United States of America Patent
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Apr 14, 1987
Grant Date -
N/A
app pub date -
Feb 10, 1986
filing date -
Feb 22, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides a friction member having high heat resistance and wearing resistance useful as a brake shoe or brake block in traffic vehicles and industrial machines. The friction member is prepared by consolidating a fibrous base material, e.g. asbestos, with a resinous binder which is a phenolic resin modified with an organopolysiloxane which characteristically comprises, in a molecule, at least one tetrafunctional siloxane unit of the formula SiO.sub.2 and/or at least one trifunctional siloxane unit of the formula R.sup.1 SiO.sub.1.5, in which R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms.
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