Thermoplastic film
AssigneeExxonMobil Oil Corporation
InventorsDan-Cheng Kong, Michael D. Cleckner
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Abstract
A thermoplastic film containing a core layer and an enhanced printing skin layer. The core layer comprises an orientation enhancing polymer, a polypropylene homopolymer, and a beta-crystal nucleators of polypropylene. The thermoplastic film may be used to enhance printing and where breathable films with good water vapor transmission are desired
Claims23
A thermoplastic film comprising a core layer and at least one printing skin layer, wherein said core layer comprises an orientation-enhancing polymer, a polypropylene homopolymer, at least one beta crystal nucleator of polypropylene and optionally a water absorption additive.
The thermoplastic film of claim l, wherein said core layers contains at least one water absorption additive selected from the group consisting of CaCO3, BaCO3, clay, talc, silica, and a hygroscopic polymer.
Dependencies are inferred from the claim text.