Rutgerswerke Aktiengesellschaft

Klaus Moraw

Hans-Gunther Paul

Gerd Collin

Arnold Alscher

Eberhard Giebeler

Bernhard Bluhm

Heinzpeter Nilles

An asbestos-free friction material useful for brake linings, clutches, etc. comprising 5 to 25% by weight of a hardenable binder or binder mixture, a reinforcing fibrous material and conventional fillers, abrasives and lubricants the said reinforcing material consisting essentially of 1 to 50% by weight of diabase fibers with an average fiber length of 100 to 750 .mu.m and 1 to 44% by weight of metal fibers, metal wool or metal in the form of chips, powder or lamella, especially steel.

Asbestos-free friction material

A process is described for the modification of wood and wood products by heat treatment in a closed, heatable vessel, wherein the water content of the starting material is controlled to be no higher than 10% by weight.

Process for the modification of wood

An asbestos-free friction material useful for brake linings, clutches, etc. comprising 5 to 25% by weight of a hardenable binder or binder mixture, 1 to 70% by weight of a reinforcing fibrous material and conventional additives, the said reinforcing material consisting essentially of 2.5 to 12% by weight of aramide fibers, 6 to 25% by weight of mineral fibers and 16 to 36% by weight of steel fibers and optionally 5 to 20% by weight of powdered mica.

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Duisburg, Germany

Klaus Moraw