公开(公告)号：US20250075764A1

公开(公告)日：2025-03-06

申请号：US18554227

申请日：2022-04-07

Applicant: ITT Italia S.R.L.

Inventor： Margherita GILETTA ,  Annamaria CANUTI ,  Daniele MORERO

IPC: F16D69/02 ,  F16D65/092

Abstract: Friction material composition and associated brake pad for vehicles having a reduced or nil tendency to both stiction and creep groan, wherein the composition includes an organic binder; an inorganic filler; a lubricant; hard abrasives having a Mohs hardness of above 7 having exclusively a roundish shape, e.g. consisting in: Alumina, Corindone, Silicon carbide, Tungsten carbide, Zirconium carbide, Zirconium silicate, Boron nitride; soft abrasives having a Mohs hardness of below 7; carbon based materials; and a metal or mixture of metals except Cu, in an amount of less than 7% in volume calculated on the total volume of the composition; the ratio between the hard abrasive rounded and the carbon based materials being 1:3; the ratio between the hard abrasive rounded and the soft abrasives being 1:6; the ratio between the metal or mixture of metals and the carbon based materials being 1:6.