Blend of polybutylene and ionomer forming easy-open heatseal

摘要

When a flexible packaging material having a heatseal layer comprising a blend of about 15 to 50 percent polybutylene and about 50 to 85 percent of an ionomer is formed into a package by heatsealing the heatseal layer to itself, the strenth of the heatseal is between about 0.5 and 2.0 pounds per inch, with delamination occurring solely between the heatseal layers when the package is opened.