公开(公告)号：US10156276B2

公开(公告)日：2018-12-18

申请号：US15210041

申请日：2016-07-14

Applicant: ITT ITALIA S.r.l.

Inventor： Agustin Sin Xicola ,  Alessandro Angeleri ,  Federico Lupone ,  Dario Caldarola ,  Alberto Conte ,  Paolo Colombo

IPC: F16D69/02 ,  C04B111/00 ,  C04B28/00

Abstract: An asbestos free friction material having at least one of the group consisting of inorganic, organic and metallic fibers, at least one binder, at least one friction modifier or lubricant and at least a filler or abrasive, wherein the binder is almost completely and exclusively inorganic and is constituted almost exclusively or exclusively by a hydrated geopolymer or a blend of hydrated geopolymers.

公开(公告)号：US20220089494A1

公开(公告)日：2022-03-24

申请号：US17391976

申请日：2021-08-02

Applicant: ITT Italia S.r.l.

Inventor： Paolo Colombo ,  Giorgia Franchin ,  Hamada Said Abdelwahab Elsayed ,  Agustin Sin Xicola

IPC: C04B28/00 ,  B28B1/00 ,  C04B28/34

Abstract: A geopolymeric ink formulation for direct 3D printing containing a geopolymeric formulation whose components are present in such proportions as to be subjected to a geopolymerization reaction and to provide, at the end of the reaction, a solid geopolymer and wherein the formulation, before and during at least a part of the geopolymerization reaction, wherein three-dimensional chemical bonds have not yet been formed, forms a reversible-gel, non-Newtonian, viscoelastic fluid. The formulation is extruded through a 3D printing tool equipped with nozzle into strands according to a geometry such as to create a three-dimensional structure on one or more layers. The extrusion preferably takes place within a hydrophobic liquid, such as oil.

公开(公告)号：US11104613B2

公开(公告)日：2021-08-31

申请号：US16061475

申请日：2016-12-16

Applicant: ITT Italia S.r.l.

Inventor： Paolo Colombo ,  Giorgia Franchin ,  Hamada Said Abdelwahab Elsayed ,  Agustin Sin Xicola

IPC: C04B28/00 ,  C04B28/34 ,  B33Y70/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y70/10 ,  C04B111/00

Abstract: A geopolymeric ink formulation for direct 3D printing containing a geopolymeric formulation whose components are present in such proportions as to be subjected to a geopolymerization reaction and to provide, at the end of the reaction, a solid geopolymer and wherein the formulation, before and during at least a part of the geopolymerization reaction, wherein three-dimensional chemical bonds have not yet been formed, forms a reversible-gel, non-Newtonian, viscoelastic fluid. The formulation is extruded through a 3D printing tool equipped with nozzle into strands according to a geometry such as to create a three-dimensional structure on one or more layers. The extrusion preferably takes place within a hydrophobic liquid, such as oil.

公开(公告)号：US12036696B2

公开(公告)日：2024-07-16

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 ,  C04B14/10 ,  C04B18/08 ,  F16D69/02 ,  C04B14/48

CPC classification number: B28B1/54 ,  C04B12/005 ,  C04B14/106 ,  C04B18/08 ,  F16D69/028 ,  C04B14/48 ,  F16D2200/0034 ,  F16D2200/006 ,  F16D2200/0095

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：US10975928B2

公开(公告)日：2021-04-13

申请号：US16185288

申请日：2018-11-09

Applicant: ITT ITALIA S.r.l.

Inventor： Agustin Sin Xicola ,  Alessandro Angeleri ,  Federico Lupone ,  Dario Caldarola ,  Alberto Conte ,  Paolo Colombo

IPC: F16D69/02 ,  C04B28/00 ,  C04B111/00

Abstract: An asbestos-free friction material having at least one of the group consisting of inorganic, organic and metallic fibers, at least one binder, at least one friction modifier or lubricant and at least a filler or abrasive, wherein the binder is almost completely and exclusively inorganic and is constituted almost exclusively by a hydrated geopolymer or a blend of hydrated geopolymers.

公开(公告)号：US11680017B2

公开(公告)日：2023-06-20

申请号：US17391976

申请日：2021-08-02

Applicant: ITT Italia S.r.l.

Inventor： Paolo Colombo ,  Giorgia Franchin ,  Hamada Said Abdelwahab Elsayed ,  Agustin Sin Xicola

IPC: C04B28/00 ,  C04B28/34 ,  B33Y70/00 ,  B33Y70/10 ,  B33Y10/00 ,  B28B1/00 ,  C04B111/00

CPC classification number: C04B28/006 ,  B28B1/001 ,  B33Y70/00 ,  C04B28/34 ,  B33Y10/00 ,  B33Y70/10 ,  C04B2111/00181 ,  C04B2111/00215

Abstract: A geopolymeric ink formulation for direct 3D printing containing a geopolymeric formulation whose components are present in such proportions as to be subjected to a geopolymerization reaction and to provide, at the end of the reaction, a solid geopolymer and wherein the formulation, before and during at least a part of the geopolymerization reaction, wherein three-dimensional chemical bonds have not yet been formed, forms a reversible-gel, non-Newtonian, viscoelastic fluid. The formulation is extruded through a 3D printing tool equipped with nozzle into strands according to a geometry such as to create a three-dimensional structure on one or more layers. The extrusion preferably takes place within a hydrophobic liquid, such as oil.