Opaque films comprising isotactic polypropylene

Details Opaque films comprising isotactic polypropylene Opaque films comprising isotactic polypropylene

B - Operations, Transporting

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B

B32B 27/08 (2006.01) B32B 27/18 (2006.01) B32B 27/28 (2006.01) B32B 27/32 (2006.01) B32B 33/00 (2006.01) C08J 5/18 (2006.01) C08L 23/12 (2006.01) C08L 67/00 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2262081

An opaque polymeric film having enhanced moisture barrier and mechanical properties. The film has a base layer which includes a blend of a high crystallinity polypropylene having an isotactic stereoregularity greater than 93 % and a cavitating agent in an amount effective to cavitate the base layer.

Film polymère opaque possédant des propriétés améliorées d'arrêt de l'humidité et mécaniques. Ledit film comporte une base polymère qui comprend un polypropylène à forte cristallinité ayant une stéréorégularité isotactique supérieure à 93 %, et un agent de cavitation à raison d'une quantité efficace pour opérer une cavitation dans la couche de base.

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