Microwaveable film or sheet suitable for vacuum skin packaging applications and peelable microwaveable vacuum skin package obtained therewith

摘要

The disclosure relates to a multi-layer film or sheet suitable for use in vacuum skin packaging (VSP) applications that has an outer layer comprising a blend of from about 8 to about 30 wt. % of modified polypropylene, from 0 to about 20 wt. % of polybutene and the complement to 100 wt. % of ionomer, wherein said modified polypropylene is a polypropylene that has been modified by grafting thereon an unsaturated carboxylic acid or a derivative thereof. The disclosure 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 that has been modified by grafting thereon an unsaturated carboxylic acid or a derivative thereof, 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.