公开(公告)号：WO2022029705A1

公开(公告)日：2022-02-10

申请号：PCT/IB2021/057256

申请日：2021-08-06

Applicant: SICER S.P.A.

Inventor： TERZI, Fabio ,  MARCACCIOLI, Sergio ,  FERRARI, Giuliano ,  FANELLI, Margherita ,  PEZZALI, Giovanni

IPC: C04B33/13 ,  C04B33/32 ,  C03C3/087 ,  C03C8/14 ,  C04B2235/3472 ,  C04B2235/349 ,  C04B2235/36 ,  C04B33/131 ,  C04B33/1315

Abstract: A mix for the manufacture of ceramic articles comprising at least two of the following components: - a frit comprising: - silicon dioxide present in a concentration by weight, evaluated with respect to the total weight of the frit, comprised between 30% and 75%; - calcium oxide or magnesium oxide present in a concentration by weight, evaluated with respect to the total weight of the frit, comprised between 0.01% and 50%; - aluminum oxide, present in a concentration by weight, evaluated with respect to the total weight of the frit, comprised between 0.01% and 30%; - one or more flux materials comprising tectosilicates; - one or more binding materials comprising phyllosilicates; wherein the at least two components are present in the following concentrations by weight, the frit is present in a concentration by weight, evaluated with respect to the total weight of the dry mix, comprised between 60% and 90%, the one or more flux materials are present in a concentration by weight, evaluated with respect to the total weight of the dry mix, comprised between 0% and 40% and the one or more binding materials are present in a concentration by weight, evaluated with respect to the total weight of the dry mix, comprised between 0% and 40% and wherein the components for heating at temperatures above 600°C react with each other to form a ceramic article having a concentration by weight of crystalline free silica, evaluated with respect to the total weight of the product, less than 1%.