Patent ID: 6761965
Filing Date: 2004-07-13
Classification: B32B,Y10S,Y10T

Abstract:
An irradiated multilayer film comprising a first layer and a second layer, the first layer being an outer heat seal layer containing a blend of (A) a highly branched homogeneous polymer having at least 40 branches per 1000 methylene groups, the highly branched polymer having an Mw/Mn less than 3.0, a density of less than 0.89 g/cc, the highly branched homogeneous polymer being present in an amount of from about 5 to 50 weight percent, based on layer weight, and (B) a semicrystalline polyolefin having a density of at least 0.90 g/cc, the semicrystalline polyolefin being present in an amount of from about 50 to 95 weight percent, based on total layer weight, the second layer containing a thermoplastic polymer in a crosslinked polymer network.