POLYPROPYLENE FILMS WITH IMPROVED OPTICS AND MECHANICAL PROPERTIES
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United States of America Patent
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Dec 9, 2015
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Dec 12, 2014
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Abstract
Polypropylene mono-layer films produced with blown film or cast film technology comprising a blend of: a) 75.0 to 98.0 wt %, based on the blend, of a random propylene copolymer and b) 2.0 to 15.0 wt %, based on the blend, of an ethylene based plastomer having a density according to ISO 1183D of 0.915 g/cm3 or below and an MFR2 according to ISO 1133 (190° C.; 2.16 kg) in the range of 2.0 to 30 g/10 min, wherein the film has simultaneously improved optic properties as well as tear resistance compared to random propylene copolymer based films without ethylene based plastomer.
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