Patent ID: 8795816

Claim:
An edge laminated film, comprising: a first polymer shaped in a planar form that is continuously extended by a second polymer laminated along an edge of the first polymer as defined by a thickness of the planar form, wherein the first polymer has a viscosity versus temperature curve, as measured at shear rates of 500 1/s, 1000 1/s or 1500 1/s, at least 10 percent different in viscosity than the second polymer at every common temperature throughout a melt temperature range of each as calculated relative to the higher viscosity value of each of the polymers, the viscosity determined by a capillary rheometer equipped with a 1 mm die utilizing a 10:1 length to diameter ratio and a 60° entrance angle, and wherein the melt temperature range for a respective one of the polymers is defined as a temperature at a softening peak of a differential scanning calorimetry (DSC) curve to a maximum of 25° C. less than a degradation peak of the DSC curve, as determined by the DSC curve obtained for a 5.5 mg sample of the respective one of the polymers heated at 20° C./minute, wherein the first polymer includes polyethylene and poly(styrene/ethylene-butylene/styrene) and the second polymer includes polypropylene, polyethylene, and ploy(styrene/ethylene-butylene/styrene).