US 12,331,803 B2
Friction material, in particular for the manufacturing of a brake pad, and associated preparation method
Agustin Sin Xicola, Barge (IT); Luca Martinotto, Barge (IT); and Paolo Galimberti, Barge (IT)
Assigned to ITT Italia S.r.l., Lainate (IT)
Filed by ITT Italia S.r.I., Lainate (IT)
Filed on Mar. 14, 2022, as Appl. No. 17/694,156.
Application 17/694,156 is a continuation of application No. 15/572,291, granted, now 11,274,721, previously published as PCT/IB2016/052608, filed on May 6, 2016.
Claims priority of application No. TO2015A000243 (IT), filed on May 7, 2015.
Prior Publication US 2022/0196097 A1, Jun. 23, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F16D 69/02 (2006.01)
CPC F16D 69/026 (2013.01) [F16D 2200/0013 (2013.01); F16D 2200/0021 (2013.01); F16D 2200/0065 (2013.01); F16D 2200/0069 (2013.01); F16D 2200/0073 (2013.01); F16D 2200/0082 (2013.01); F16D 2250/0023 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An asbestos-free friction material comprising:
inorganic and/or organic and/or metallic fibers consisting of between 15-30 percent of the total volume of the asbestos-free friction material;
at least one organic thermosetting binder, wherein the at least one organic thermosetting binder is one or a combination of a phenolic resin, a melamine resin and an epoxy resin, wherein the at least one organic thermosetting binder optionally comprises an inorganic binder;
the at least one organic thermosetting binder being between 2-50 percent of the total volume of the asbestos-free friction material;
at least one friction modifier or lubricant including a carbonaceous material; and
at least one filler or abrasive,
wherein the at least one friction modifier may include the at least one filler,
wherein the carbonaceous material is constituted in part by a microstructure in flakes or scales of micrometric planar dimensions and of nanometric thickness consisting of substantially pure graphene mono- or multilayers; in which the total amount of substantially pure graphene present is between 0.1 and 12% by volume of the total volume of the asbestos-free friction material.