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1. (WO2017156136) FRICTION MATERIAL WITH HIGH PERFORMANCE SURFACE LAYER

Pub. No.:    WO/2017/156136    International Application No.:    PCT/US2017/021374
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 09 00:59:59 CET 2017
IPC: F16D 69/02
B32B 7/02
F16D 69/00
Applicants: SCHAEFFLER TECHNOLOGIES AG & CO. KG
SCHAEFFLER GROUP USA, INC.
Inventors: FARAHATI, Rashid
BAKAN, Murat
Title: FRICTION MATERIAL WITH HIGH PERFORMANCE SURFACE LAYER
Abstract:
A friction material for a clutch pad comprising: a base layer including: a plurality of fibers; and, a filler material; and, a surface layer, substantially devoid of fibers, including: a friction modifier; and, a coupling agent. A method of making a friction material composite, the method comprising: forming a base layer, having oppositely disposed first and second surfaces and a first density, and including a plurality of fibers and a filler material; mixing a friction modifier and an organosilane coupling agent to form a mixture; applying the mixture uniformly to the first surface of the base layer to form a friction modifying surface layer, having oppositely disposed third and fourth surfaces and a second density, and an interfacial bonding layer therebetween; and, saturating the base layer, the interfacial bonding layer, and the friction modifying surface layer with a binder.