B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) B32B 27/32 (2006.01)
Patent
CA 2125861
Laminar polyolefin film materials have a base film layer comprising a blend of an olefin polymer and up to 30 % by weight of at least one very low density copolymer of ethylene and a C3 to C2 alpha olefin comonomer copolymerizable with ethylene, and a heat sealable film layer present on one or both surfaces thereof comprising a very low density copolymer of ethylene and a copolymerizable C5 to C12 alpha olefin comonomer. The ethylene copolymer constituents of the film are characterized as having a density in the range of about 0.88 g/cm3 to 0.915 g/cm3, a melt index in the range of 0.5 dg/min to 7.5 dg/min, a molecular weight distribution (M w/M n) of 1.5 to 3.5 and an essentially single melting point in the range of 60 °C to 115 °C, measured as a DSC peak T m.
Borden Ladner Gervais Llp
Exxonmobil Chemical Patents Inc.
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