公开(公告)号：US20230295048A1

公开(公告)日：2023-09-21

申请号：US18017258

申请日：2021-07-23

Applicant: MATHYM

Inventor： Erik CAMPOSILVAN ,  Omid AKHLAGHI ,  Vincent GARNIER ,  Yves JORAND ,  Jérôme CHEVALIER

IPC: C04B35/488 ,  A61C13/00 ,  C04B35/638 ,  C04B35/64 ,  C04B35/626 ,  A61K6/818 ,  A61K6/17

CPC classification number: C04B35/488 ,  A61C13/0022 ,  C04B35/638 ,  C04B35/64 ,  C04B35/6266 ,  A61K6/818 ,  A61K6/17 ,  A61C2201/002 ,  C04B2235/3246 ,  C04B2235/3229 ,  C04B2235/5454 ,  C04B2235/6027 ,  C04B2235/604 ,  C04B2235/606 ,  C04B2235/656 ,  C04B2235/661 ,  C04B2235/775 ,  C04B2235/608 ,  C04B2235/9661 ,  C04B2235/785 ,  B28B1/265

Abstract: The present invention relates to a green body, a pre-ceramic body and a ceramic body based on metal oxide particles, in particular zirconium oxide. The present invention also relates to the method of producing said materials and to the use thereof, in particular in the field of dentistry.

公开(公告)号：US12071355B2

公开(公告)日：2024-08-27

申请号：US17293208

申请日：2019-11-28

Applicant: MATHYM

Inventor： Amandine Venier ,  Erik Camposilvan ,  Miguel Comesana-Hermo

IPC: C01G25/02

CPC classification number: C01G25/02 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/22

Abstract: This invention relates to a process for preparing nanoparticles of zirconium dioxide, ZrO2, by hydrothermal treatment of a zirconium IV compound in the presence of water, at a pH below 7, and at least one amino acid comprising at least 4 carbon atoms, said amino acid exhibiting an acid function to amine function ratio greater than or equal to 1. The invention also relates to zirconium dioxide nanoparticles having a visible transmittance greater than or equal to 20% at 400 nm and greater than or equal to 95% at 800 nm measured in water at a concentration of 40% by weight.

公开(公告)号：US20220009790A1

公开(公告)日：2022-01-13

申请号：US17293208

申请日：2019-11-28

Applicant: MATHYM

Inventor： Amandine VENIER ,  Erik CAMPOSILVAN ,  Miguel COMESANA-HERMO

IPC: C01G25/02

Abstract: This invention relates to a process for preparing nanoparticles of zirconium dioxide, ZrO2, by hydrothermal treatment of a zirconium IV compound in the presence of water, at a pH below 7, and at least one amino acid comprising at least 4 carbon atoms, said amino acid exhibiting an acid function to amine function ratio greater than or equal to 1. The invention also relates to zirconium dioxide nanoparticles having a visible transmittance greater than or equal to 20% at 400 nm and greater than or equal to 95% at 800 nm measured in water at a concentration of 40% by weight