Self-adhered, vapor permeable air barrier membrane

Details Self-adhered, vapor permeable air barrier membrane Self-adhered, vapor permeable air barrier membrane

C - Chemistry, Metallurgy

09

J

C09J 7/02 (2006.01) E04B 1/66 (2006.01)

Patent

CA 2751206

Disclosed is a self-adhered, vapor permeable, air barrier membrane that is easy to install. The air barrier comprises a spun-bond, non-woven polyolefin sheet coated or partially coated with a pressure sensitive adhesive. A removable release sheet covers the adhesive layer. The membrane has a Young's modulus of 3000 to 80,000 psi in the cross- direction and 5000 to 100,000 psi in the machine direction.

L'invention porte sur une membrane barrière à l'air, perméable à la vapeur, auto-collante, qui est facile à installer. La barrière à l'air comprend une feuille de polyoléfine non tissée, filée-liée, revêtue ou partiellement revêtue par un adhésif sensible à la pression. Une feuille anti-adhésive pouvant être retirée recouvre la couche adhésive. La membrane a un module d'Young de 3 000 à 80 000 livres par pouce carré dans le sens transversal et 5 000 à 100 000 livres par pouce carré dans le sens de la machine.

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