B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/26 (2006.01) B05D 3/02 (2006.01) B32B 5/18 (2006.01) B32B 5/22 (2006.01) B32B 5/24 (2006.01) B32B 27/04 (2006.01) B32B 27/12 (2006.01) D06N 7/00 (2006.01)
Patent
CA 2398982
The present invention provides coating materials (14), insulation-containing building material products bearing the materials and methods for applying the coatings to the building material products. The coating materials (14) possess one-way "breathability" c haracteristics with respect to water and aqueous solutions. That is, the coatings are essentially impermeable to liquid water and permeable to water vapor. Vapor from water insulation coated by the material may thus pass through the coating, whereas liquid water is effectively prevented from passing through the coating and entering the insulation.
La présente invention concerne des matériaux de revêtement (14), des produits de matériaux de construction contenant une isolation et comportant lesdits matériaux de revêtement, ainsi que des procédés d'application desdits revêtements sur les produits de matériaux de construction. Les matériaux de revêtement (14) présentent un pouvoir respirant unidirectionnel par rapport à l'eau et à des solutions aqueuses, c.-à-d. que lesdits revêtements sont essentiellement imperméables à l'eau liquide et perméables à la vapeur d'eau. Ainsi, de la vapeur d'eau contenue dans une isolation revêtue dudit matériau peut traverser le revêtement, tandis que de l'eau liquide ne peut pas traverser le revêtement et pénétrer dans l'isolation.
Ruid John O.
Shaw Wayne E.
Toas Murray S.
Certainteed Corporation
Mcfadden Fincham
LandOfFree
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