Microwaveable film or sheet suitable for vacuum skin...

B - Operations – Transporting – 32 – B

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B32B 27/32 (2006.01) B65D 75/30 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2598609

Amulti-layer film or sheet suitable for use in VSP applications has an outer layer comprising a blend of from about 8 to 30 wt. % of modified polypropylene, from 0 to about 20 wt. % of polybutene and the complement to 100 wt. % of ionomer. The patent application also relates to a peelable VSP package where one of the webs has an outer sealing layer comprising a blend of from about 8 to 30 wt. % of modified polypropylene, from 0 to about 20 wt. % of polybutene and the complement to 100 wt. % of ionomer and the other web comprises an outer sealing layer having an ethylene homo- or copolymer-based surface, wherein said outer sealing layers are sealed to each other in one or more selected areas with a seal strength of from about 2.0 to about 4.0 N/25.4 mm.

Pellicule ou film multicouche utilisable pour des applications d~emballage moulant sous vide comportant une couche extérieure formée d~un mélange d~environ 8 à 30 % en poids de polypropylène modifié, et de 0 à environ 20 % en poids de polybutène avec ionomère qsp. La demande de brevet concerne aussi un emballage moulant sous videpelable où une des bandes a une couche extérieure étanche formée d~un mélange d~environ 8 à 30 % en poids de polypropylène modifié, et de 0 à environ 20 % en poids de polybutène avec ionomère qsp et l~autre bande comprend une couche extérieure étanche avec une surface à base d~éthylène homopolymère ou copolymère. Lesdites couches extérieures étanches sont scellées l~une à l~autre au niveau d~une ou plusieurs zones choisies et avec une résistance de scellé d~une valeur située entre 2,0 et environ 4,0 N/25,4 mm.

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