Friction materials with universal core of non-asbestos fibers

Details Friction materials with universal core of non-asbestos fibers Friction materials with universal core of non-asbestos fibers

1990-10-29

1991-08-20

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523155, 523156, C08J 514

Patent

active

050414712

ABSTRACT:
A non-asbestos friction material has a core group of fibers that is universally used in a plurality of friction material formulations to provide appropriate friction materials for different end uses. The universal core group is resistant to temperatures above 1000.degree. F. Friction materials made with the core group have the additional advantage of long wear. Polybenzimidazole (PBI) is an essential element of the core group of fibers because its friction level increases as the temperature increase. The other elements of the core group are aramid fibers, carbon fibers, and a high strength ceramic fiber.

REFERENCES:
patent: 4145223 (1979-03-01), Iwata
patent: 4373038 (1983-02-01), Moraw et al.
patent: 4374211 (1983-02-01), Gallagher et al.
patent: 4386168 (1983-05-01), Fujimaki et al.
patent: 4717764 (1988-01-01), Ward
patent: 4775705 (1988-10-01), Parker et al.

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