Non-asbestos friction material

Details Non-asbestos friction material Non-asbestos friction material

2007-12-21

2010-06-22

Green, Anthony J (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Tractive or friction surface

C523S149000

Reexamination Certificate

active

07740698

ABSTRACT:
A non-asbestos friction material not containing a heavy metal and a heavy metallic compound as the blending ingredients of the friction material is provided with graphite and coke in total from 5 to 25 vol % in volume of friction material. A volume ratio of the graphite/coke is preferably from 2/1 to 7/1. An average particle size of the coke is preferably from 150 to 400 μm.

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