Glass-ceramic plate comprising a liquid-retaining bead

• Main Authors: Brudieu, Barbara, Guedon, Thibault
• Format: Patent
• Language: English
• Published: 07.11.2023
• Subjects: BLASTING; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GLASS; HEATING; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MINERAL OR SLAG WOOL; OTHER DOMESTIC STOVES OR RANGES; PERFORMING OPERATIONS; RANGES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING; VENTILATING; WEAPONS

A glass-ceramic plate for a cooking device includes a first main face to be in contact with liquids, a second main face and an edge, a liquid-retaining bead fastened to and in contact with the first main face, wherein the retaining bead surrounds a region of the first main face so as to form a liquid-retaining reservoir, and includes at least two hydrophobic sub-beads inscribed within one another and separated by hydrophilic zones, a width of the hydrophilic zone between two consecutive sub-beads is throughout at least greater than 500 μm and less than a threshold value, the threshold value being defined so that, when a liquid is present in the hydrophilic zone, a variation in the retention time or volume of the liquid before overflowing, relative to a same liquid present in a hydrophilic zone, the width of which is greater than the value, is less than 5%.