Fibrous material-based friction member

Details Fibrous material-based friction member Fibrous material-based friction member

1986-02-10

1987-04-14

Buffalow, Edith

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523155, 523156, 192107M, C08J 514

Patent

active

046579516

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.

REFERENCES:
patent: 2877198 (1959-03-01), Morrissey et al.
patent: 4020226 (1977-04-01), Andrianov
patent: 4045608 (1977-08-01), Todd
patent: 4259397 (1981-03-01), Saito et al.
patent: 4262788 (1981-04-01), Yamamoto et al.

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