Fire retardant nonwoven material and process for manufacture

Details Fire retardant nonwoven material and process for manufacture Fire retardant nonwoven material and process for manufacture

E - Fixed Constructions

04

B

E04B 1/82 (2006.01) B32B 21/10 (2006.01)

Patent

CA 2656493

An improved acoustically and thermally insulating fire-retardant composite material suitable for use in structures such as buildings, appliances, and the interior passenger compartments and exterior components of automotive vehicles is provided. The material is comprised of at least one airlaid fibrous layer of controlled density and composition and incorporating suitable binding agents and additives as needed to meet expectations for noise abatement, fire-retardancy, and mildew resistance. Separately, an airlaid structure which provides a reduced, controlled airflow therethrough useful for acoustic insulation is provided, and which includes a woven or nonwoven scrim. A process for the production of the fire retardant nonwoven material is also provided.

L'invention concerne un matériau composite retardateur de flamme amélioré, acoustiquement et thermiquement isolant, conçu pour être utilisé dans des structures telles que des bâtiments, des appareils ainsi que des compartiments intérieurs pour passagers et des composants extérieurs de véhicules automobiles. Le matériau se compose d'au moins une couche fibreuse appliquée par jet d'air, de densité et de composition contrôlées, incorporant des agents de liaison et des additifs suffisants pour satisfaire les attentes d'affaiblissement du bruit, de retard de flamme et de résistance à la moisissure. En outre, l'invention concerne une structure appliquée par jet d'air procurant un courant d'air contrôlé, réduit, la traversant, offrant des caractéristiques d'isolation acoustique et comprenant un canevas léger tissé ou non-tissé. L'invention concerne également un procédé pour la fabrication du matériau non-tissé retardateur de flamme.

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