Saint-Gobain Materiaux De Construction S.a.s.

Saint-Gobain Vitrage 'Les Miroirs'

Paul Houang

Charlotte Famy

Gaël Cadoret

Valdir Aparecido Zampieri

Benoit d'Iribarne

The present invention relates to a product, in particular a panel, that can be obtained by the Hatschek process and without autoclaving, and can be used as siding, cladding element or partition element, this product being formed from a fibre-reinforced cementitious matrix comprising at least one hydraulic binder, such as cement, at least one filler, such as calcium carbonate, and at least synthetic fibres. The invention also relates to a process for manufacturing the product.

Cementitious product in panel form and manufacturing process

The present invention relates to a product in panel form, comprising a fiber-reinforced cementitious matrix, prepared from a sheet material by filtration on a screen of an aqueous suspension comprising at least one hydraulic binder, such as cement and at least one fibrous material and devoid of siliceous sand, thicknesses of said sheet material being superposed until the desired final thickness is obtained, in order to give a panel which is then autoclaved. The invention also relates to a process for manufacturing the product.

The invention relates to the tempering of sheets of glass and optionally their bending by the so-called contact process. It proposes a process in which the edge stresses of the glass sheets are reinforced by cooling the edges of the glass sheets in relation to their central zone, particularly by blowing on these edges with a cooling gas. It also proposes a device to perform this preferred cooling of the edges, as well as glass sheets thus tempered. The invention applies to the production of glazings having nonfragile edges, particularly for the automobile.

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Paris, France

Paul Houang