公开(公告)号：US20230349434A1

公开(公告)日：2023-11-02

申请号：US18026777

申请日：2021-09-17

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Andrea ISOARDI ,  Laura RINALDI ,  Daniele GENTA ,  Flavio TROMBOTTO

IPC: F16D65/04 ,  F16D69/02

CPC classification number: F16D65/04 ,  F16D69/026 ,  F16D2200/006 ,  F16D2250/0007 ,  F16D2250/0084

Abstract: Friction block or layer made of an asbestos free friction material, the friction material including, as composing materials thereof, inorganic and/or organic and/or metallic fibers, at least a binder, at least a friction modifier or lubricant and at least a filler or abrasive, wherein the asbestos free friction material also contains, as an additional composing material or additive, an hydrophobic wax, preferably present from 0.5% to 5% in volume, the asbestos free friction material block or layer possessing a hydrophobicity, defined as the time of absorption within the friction material of a liquid drop formed by 20+/−5 μL of distilled water, of more than 60 minutes, so that the force to detach the friction block or layer from a metallic surface to which it has been made to stitch electrochemically is lower than 15 Nw.

公开(公告)号：US20220196098A1

公开(公告)日：2022-06-23

申请号：US17128259

申请日：2020-12-21

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Francesco VANNUCCI ,  Simone ANSALONI

IPC: F16D69/02 ,  F16D65/12 ,  B60T1/06 ,  F16D55/22 ,  F16D65/092

Abstract: Brake pads are prepared using a LS (Low Steel) or NAO (Non-Asbestos Organics) type friction material formulation and at least one friction surface of a brake disc intended to cooperate in use with a brake pad that is coated with an anti-wear and anti-corrosion coating with adequate plasticity in order to have a reduced propensity to form micro-cracks under conditions of tribo-mechanical stress, chosen from the amongst the group consisting in: particles of chromium carbide (Cr3C2) dispersed within a metallic matrix consisting of an alloy of NiCr; particles of a combination of several metallic materials in order to create a metallic compound consisting of an alloy of FeNiCrMoSiC (iron-nickel-chromium-molybdenum-silicon-carbon).

公开(公告)号：US20220196092A1

公开(公告)日：2022-06-23

申请号：US17131244

申请日：2020-12-22

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Francesco VANNUCCI ,  Simone ANSALONI

IPC: F16D65/12 ,  F16D65/00

Abstract: Brake pads are prepared using a formulation of friction material of the copper-free type (Low-Steel or Organic Non-Asbestos) and at least one friction surface of a brake disc, which is intended to cooperate with the brake pad, is covered with an anti-wear and anti-corrosion coating consisting of a surface layer of chromium carbide particles (Cr3C2) dispersed in a metallic matrix consisting of a NiCr alloy, and coupled to a second layer consisting of selected combinations of metallic materials, chosen from the group consisting of: Cr3C2-high density NiCr, NiAl alloys, FeNiCrMoSiC alloys, metallic nickel, NiCr alloys, and/or any combination of the above.

公开(公告)号：US20210323192A1

公开(公告)日：2021-10-21

申请号：US17270250

申请日：2019-08-23

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Francesco VANNUCCI ,  Paolo COLOMBO ,  Alberto CONTE

IPC: B28B1/54 ,  C04B12/00 ,  F16D69/02 ,  C04B14/10 ,  C04B18/08

Abstract: Method for creating a brake pad with a block of friction material, in which sodium hydroxide and sodium silicate are dissolved in water, the aqueous solution of sodium hydroxide and sodium silicate is mixed with commercial metakaolin until a wet paste is obtained, the wet paste is formed and dried until a dried geopolymeric aggregate is obtained, the aggregate is ground to a powder, the dried ground aggregate is used as an exclusive or almost-exclusive inorganic geopolymeric binder in a friction material compound and the raw compound is hot-molded under a pressure greater than a water saturation pressure at the molding temperature.

公开(公告)号：US20240034873A1

公开(公告)日：2024-02-01

申请号：US18258526

申请日：2021-12-22

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA ,  Mauro MILAZZO ,  Valentina IODICE ,  Finizia AURIEMMA ,  Claudio DE ROSA

IPC: C08L61/06 ,  F16D69/02 ,  F16D65/092

CPC classification number: C08L61/06 ,  F16D69/026 ,  F16D65/092 ,  F16D2200/0065 ,  F16D2200/006 ,  F16D2200/0073 ,  F16D2200/0004 ,  F16D2250/0069

Abstract: A friction material is discloses for a braking pad comprising a binder comprising a mixture of a phenolic resin or a phenol formaldehyde resin and of a thermoplastic. The total amount of said phenolic resin or phenol formaldehyde resin and of said thermoplastic is between 2 and 60% in volume of said friction material. The ratio in volume between phenolic resin or phenol formaldehyde resin and the thermoplastic is from 20 to 80% in volume. Preferably the thermoplastic has a melting temperature between 120° and 350° C. and comprises a polyamide or a thermoplastic polymer with N—H bond, either in the backbone or in the pendant group. More preferably the thermoplastic material is chosen in the group constituted by PA4, PA6, PA1, PA11, PA12, PA410, PA610, PA66, PA612.

公开(公告)号：US20230175569A1

公开(公告)日：2023-06-08

申请号：US17921319

申请日：2021-05-19

Applicant: ITT Italia S.R.L.

Inventor： Agustin SIN XICOLA

IPC: F16D69/02 ,  C09K3/14

CPC classification number: F16D69/026 ,  C09K3/149 ,  F16D2069/006

Abstract: Technologies are generally described for a composition for an under-layer of a brake pad of a brake disc rotor. The composition may include a fiber pack, a powdered rubber, at least one binder, and at least one filler, wherein the fiber pack includes aramid fibers up to about 3 wt %.