Saint-Gobain Glass France

Saint-Gobain Vitrage

Nathalie El Khiati

René Gy

Daniel L Ricoult

Pascale Laborde

Eric Le Bourhis

Nathalie Dideron

Christophe Mazzara

Jaona Girard

Daniel Ricoult

A process for electrochemically etching a layer with electric conduction properties, of the doped metal oxide type, on a transparent substrate of the glass type, fitted with a mask capable of being removed after etching. The process brings at least one region to be etched of the layer into contact with an electrically conducting solution, immerses an electrode in the solution and places the electrode facing and at a distance from the region, and applies an electrical voltage between the electrode and the layer to be etched. The electrode has an oblong shape such that the etching is carried out on several regions of the layer over a width of the substrate.

Method for etching layers deposited on transparent substrates such as glass substrate

The subject of the invention is a glass composition of the silica-soda-lime type, intended for the manufacture of substrates or sheets, the said glass composition having a &#x3c6; coefficient of between 0.50 and 0.85 N/(mm.&#xb0; C.) and a working point of less than 1200&#xb0; C.

Soda-lime-silica glass compositions and applications

The invention relates to a glass composition intended for the manufacture of thermally stable substrates or panes, which comprises the following constituents in the following proportions by weight:

Silica-soda-lime glass compositions and their applications

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Deuil la Barre, France

Nathalie El Khiati