High barrier polypropylene compositions and their use in...

Details High barrier polypropylene compositions and their use in... High barrier polypropylene compositions and their use in...

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) C08L 23/12 (2006.01)

Patent

CA 2228551

Film is provided wherein at least one layer comprises polymer, a molecular majority of which is derived from propylene, having water vapor transmission rate of less than or equal to about (-7.4428 g x µm/m2 x day x % polymer crystallinity) (% polymer crystallinity) + 627.32 g x µm/m2 x day, or (- 0.0189 g x mil/100 in2 x day x % polymer crystallinity) (% polymer crystallinity) + 1.593 g x mil/100 in2 x day.

L'invention concerne un film dans lequel au moins une couche contient un polymère, dont la majeure partie provient de molécules de propylène, et qui a une perméabilité à la vapeur d'eau inférieure ou égale à environ (-7,4428 g x µm/m?2¿ x jour x % de cristallinité du polymère)(% de cristallinité du polymère) + 627,32 g x µm/m?2¿ x jour, ou (-0,0189 g x mil/100 pouces?2¿ x jour x % de cristallinité du polymère)(% de cristallinité du polymère) + 1,593 g x mil/100 pouces?2¿ x jour.

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