Patent ID: 7297728
Filing Date: 2007-11-20
Classification: F16D

Abstract:
1. A friction material made by molding and curing a composition comprising: a fibrous base; a friction modifier; and a binder, wherein the fibrous base includes stainless steel fibers but is free of other steel fibers the friction modifier includes at least two types of hard particles having a Mohs hardness of at least 9, bronze powder having an average particle size of 40 to 100 μm and 3.5 to 7.5 vol % of tin sulfide, based on the overall composition, and the binder includes at least one selected from the group consisting of phenolic resin, phenol aralkyl resin, high-ortho phenolic resin modified with acrylonitrile-butadiene rubber (NBR), NBR-modified phenolic resin, acrylic rubber-modified phenolic resin and aromatically modified phenolic resin.