Lafarge Platres

Frederic Peronnet

Emmanuel Vial

Roger Arese

Paul Jallon

Jean-Louis Laurent

Lionel Zbinden

Loic Martin

The subject of the invention is a novel plasterboard and its manufacturing processes. The novel board comprises, on one side, two first parallel feathered edges and, on the other side, two other, second, parallel feathered edges that are perpendicular to the first ones; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said other parallel feathered edges having a width of between 100 and 200 mm; or, on one side, two first parallel feathered edges and, either on the same side or on the other side, two second parallel feathered edges that are perpendicular to the first ones, the said second parallel feathered edges having a width such that the ratio of the width of the said second parallel feathered edges to the width of the said first parallel feathered edges is between 1.5 and 5.

Production line for hydraulic binder-based, tapered-edge boards

Production method for hydraulic binder-based, tapered-edge boards

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Montussan, France

Frederic Peronnet