Patent ID: 6737130
Filing Date: 2004-05-18
Classification: B32B,C08F,C08L,Y10S,Y10T

Abstract:
A multilayer film comprising a hermetically heat-sealable, pressure-reclosable, outer heat seal layer comprising a blend of a substantially spherical homogeneous polyolefin with a different thermoplastic polymer, the substantially spherical polyolefin being present in an amount of from about 20 to 80 weight percent, based on total layer weight, the different thermoplastic polymer being present in the layer in an amount of from about 80 to 20 weight percent, based on total layer weight, the substantially spherical polyolefin having at least 60 side chain branches per 1000 carbon atoms, and which contains for every 100 branches that are methyl, 1 to about 80 ethyl branches, 1 to about 20 propyl branches, 1 to about 50 butyl branches, 1 to about 20 amyl branches, and 1 to about 100 hexyl or longer branches, the substantially spherical homogeneous polyolefin having a melt index of from about 1 to 10.