Patent ID: 8863917
Filing Date: 2014-10-21
Classification: F16D

Abstract:
1. A friction material for a brake comprising, in percent (%) by volume of said friction material: a binder forming 16-24% by volume; a fiber forming 4-12% by volume; at least one lubricant, each of said lubricants present in said friction material being selected from the group consisting of metal sulfide, non-metal sulfide, antimony trioxide, phthalocyanine, tin powder, and zinc powder; said at least one lubricant including at least one of said metal sulfide and said non-metal sulfide; each of said lubricants present in said friction material together forming at least 2% by volume and not greater than 5% by volume of said friction material; at least one abrasive forming 10-22% by volume; a filler forming 46-65% by volume, said filler consisting of at least one component selected from the group consisting of rubber powder, lime, calcium oxide, barytes, graphite, petroleum coke, desulfurized coke, calcium silicate, and friction dust; said at least one component of said filler including said rubber powder, wherein said rubber powder forms at least 4% by volume of said friction material; metal fibers forming 0% to not greater than 0.2% by volume; titanates forming 0% to not greater than 0.2% by volume; and copper forming 0% to not greater than 0.2% by volume.