PROCESSING COMPOSITION OF A VITROCERAMIC FOR IMPROVING THE MECHANICAL RESISTANCE BY HEALING SURFACE DEFECTS, CORRESPONDING PROCESSING METHODS AND TREATED VITROCERAMIC PRODUCTS OBTAINED

摘要

This composition for treating the surface of a glass-ceramic, especially in plate form, flat glass or hollowware, or glass in the form of fibers, is able to be applied as a thin coating to said glass-ceramic or said glass. It comprises, in aqueous medium, the following constituents (A) and (B): (A) at least one compound having at least one functional group f(A); and (B) at least one compound having at least one functional group f(B) capable of reacting with the functional group or groups f(A) of constituent (A) within the thin coating applied to the glass-ceramic or the glass so as to convert said coating by polycondensation and/or curing into a solid coating, at least one of the compounds involved in the definition of (A) and (B) having at least one R-O-functional group attached to a silicon atom, R representing an alkyl residue, and at least some of the compounds having at least one R-O-functional group attached to a silicon atom, which may be in a hydrolyzed form resulting from a prehydrolysis or a spontaneous hydrolysis that has taken place while the compound or compounds are in contact with the aqueous medium.