Patent ID: 6260674
Filing Date: 2001-07-17
Classification: F16D

Abstract:
A friction material to be bonded on a back plate, comprising:a fibrous reinforcement;a binder; anda friction modifier,wherein a content of the binder on a side of the back plate is made to be larger than the content of the binder on a friction surface side of the friction material, and the content of the fibrous reinforcement on the side of the back plate is made to be smaller than the content of the fibrous reinforcement on the friction surface side of the friction material, wherein the fibrous reinforcement and the binder on the friction surface side of the friction material is the same as the fiber reinforcement and the binder on the back plate side of the friction material, wherein(i) the content of the binder is in a range of 5% by weight to 20% by weight and the content of the fibrous reinforcement is in a range of 5% by weight to 50% by weight on the friction surface side, and(ii) the content of the binder is in the range of 10% by weight to 50% by weight and the content of the fibrous reinforcement is in a range of 0% by weight to 20% by weight on the side of the backplate.