Accoustical sound proofing material and methods for...

Details Accoustical sound proofing material and methods for... Accoustical sound proofing material and methods for...

E - Fixed Constructions

04

B

E04B 1/32 (2006.01) E04B 7/08 (2006.01) E04C 3/38 (2006.01)

Patent

CA 2538132

An improved acoustical damping wall (ceiling or floor) or door material comprises a laminar structure having as an integral part thereof one or more layers of viscoelastic material which also functions as a glue and one or more constraining layers, such as metal, cellulose, wood, or petroleum-based products such as plastic, vinyl, plastic or rubber. In one embodiment, standard wallboard, typically gypsum, comprises the external surfaces of the laminar structure; and one or more constraining layers are fabricated between the gypsum exterior. The resulting structure improves the attenuation of sound transmitted through the structure.

Cette invention concerne un matériau amélioré pour porte ou paroi (plafond ou plancher) d'amortissement acoustique comprenant une structure laminaire comprenant, comme partie intégrante de celle-ci, une ou plusieurs couches de matériau viscoélastique qui sert aussi de colle, ainsi qu'une ou plusieurs couches de contrainte composées par exemple de produits à base de pétrole, de bois, de cellulose ou de métal tels que le plastique, le vinyle, le plastique ou le caoutchouc. Dans un mode de réalisation, un panneau mural standard, habituellement en plâtre, comprend les surfaces externes de la structure laminaire, et une ou plusieurs couches de contrainte sont fabriquées entre l'extérieur en plâtre. La structure ainsi obtenue améliore l'atténuation du son transmis à travers la structure.

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