Non asbestos ion-polyer composite friction materials

Details Non asbestos ion-polyer composite friction materials Non asbestos ion-polyer composite friction materials

1989-10-26

1992-09-08

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523149, 523150, 523152, 523153, 523155, 523156, 523157, 523205, 524406, 525221, C08J 514

Patent

active

051458888

ABSTRACT:
Non-asbestos ion-polymer composite friction materials show high heat resistance and low wear, being especially useful for friction elements in brake shoes or blocks in automobiles and industrial machines. The non-asbestos ion-polymer composites are basically composed of a polyacrylonitrile fiber and an ion-polymer used as binder matrix. An optional friction modifier can be added to include, e.g., carbon, graphite and/or MoS.sub.2, etc. The ion-polymer is polymerized from alpha, beta-unsaturated-gamma-carbonyl monomers, e.g., acrylic acid, or esters thereof or their comonomers, directly onto the solid surface of divalent metal compounds, e.g., Ca, Sr, Ba, Zn salt(s) and/or oxide(s).

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