Organic filler of animal origin to be used in the preparation of friction materials offering a very low rate of wear

摘要

The invention pertains to the use of an organic compound of animal origin as a filler in the preparation of compound friction materials. PPThe fibrous protein type compound has a high content of hydroxyproline. This protein may be used in the fibrous state or in the state of powder. It may be collagen.PPThis invention applies to the preparation of friction materials offering a very low rate of wear.