A process for producing a non-oriented film with improved oxygen barrier property

Abstract

The present invention is directed to a process for producing a non-oriented film with improved oxygen barrier property, and to such a non-oriented film. The non-oriented film comprises a polyolefin composition comprising a propylene homo- or copolymer, a hydrocarbon resin and optionally a nucleating agent. The process involves cooling of the extruded film at a certain cooling temperature which is preferably higher than the cooling temperature of a film which has the same components in the same relative amounts apart from not comprising the hydrocarbon resin. The present invention allows the application of a polypropylene based non-oriented film like a cast film (CPP) for packaging of sensitive food