Friction material composite

Details Friction material composite Friction material composite

1987-12-02

1990-01-23

Lesmes, George F.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523152, 523155, 523157, C08J 514, B22C 1122

Patent

active

048958824

ABSTRACT:
A friction material composite especially suitable for an electromagnetic clutch, includes a reinforcing fiber material, optionally an organic filler, an inorganic filler, and a friction and abrasion conditioner bonded together by a thermosetting resin binder. The reinforcing fiber material contains 25 to 35 percent by volume of staple cellulose pulp of not more than 150 .mu.m in fiber length. The organic filler contains 30 to 40 percent by weight of an organic filler material of not more than 840 .mu.m in maximum grain size. The friction and abrasion conditioner contains and 0.5 to 5 percent by volume of aluminum oxide and/or magnesium oxide of not more than 250 .mu.m in maximum grain size. The material composite has a porosity in the range of 15 to 30 percent by volume.

REFERENCES:
patent: 4119591 (1978-10-01), Aldrich
patent: 4656203 (1987-04-01), Parker
patent: 4663368 (1987-05-01), Harding et al.
patent: 4722949 (1988-02-01), Horiguchi et al.
patent: 4735975 (1988-04-01), Iwata

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