Interior wallboard and method of making same

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 7/02 (2006.01) D04H 1/00 (2006.01)

Patent

CA 2485144

A gypsum wallboard may have a paper-covered first face with shaped regions formed along side portions near the wallboard edges, and a fibrous mat-covered second face. The fibrous mat material covering the second face extends around the wallboard edges and is overlapped by portions of the paper on the first face. The wallboard can be manufactured by depositing a gypsum slurry onto a moving web of the fibrous mat material, applying a web of the paper to the deposited gypsum slurry, and forming shaped regions in the side portions of the top surface.

L'invention concerne un panneau de revêtement mural en plâtre susceptible de présenter une première face revêtue de papier ayant des zones façonnées formées le long de parties latérales à proximité des bords du panneau de revêtement mural, et une seconde face recouverte d'un revêtement fibreux. La matière du revêtement fibreux recouvrant la seconde face entoure les bords du panneau de revêtement mural et est recouverte, à son tour, par des parties du papier de la première face. Le panneau de revêtement mural peut être fabriqué par l'application d'une suspension aqueuse de plâtre sur une bande de matière de revêtement fibreux se déplaçant, par l'application d'une bande de papier sur la suspension aqueuse de plâtre appliquée, et par la formation de zones façonnées dans les parties latérales de la surface supérieure.

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