C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/12 (2006.01) C08L 23/06 (2006.01) C08L 23/10 (2006.01) C08L 23/14 (2006.01)
Patent
CA 2388160
Polyolefin films having high oxygen transmission values are composed of blends of 75 to 92% isotactic polypropylene, to 15 % by weight low density polyethylene and 3 to 10 % by weight of an olefin heteropolymer of at least 2 to 4 carbon atoms having a melting point less than that of polypropylene and a density ofr at least about 0.95 g/cc.
L'invention concerne des films de polyoléfines à valeurs de transmission de l'oxygène élevées, lesquels films sont composés de mélanges constitués de 75 à 92 % de polypropylène isotactique, de 5 à 15 % en poids de polyéthylène faible densité et de 3 à 10 % en poids d'un hétéropolymère d'oléfines comprenant au moins de 2 à 4 atomes de carbone, ledit hétéropolymère ayant un point de fusion inférieur à celui du polypropylène et une densité d'au moins 0,95 g/cc environ.
Applied Extrusion Technologies Inc.
Ridout & Maybee Llp
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