Multiple layer films and packages made therefrom.

摘要

A multiple layer film (10) is useful in packaging, and the packages (26) in the form of pouches are made therefrom. A first layer (14) of the film is a material containing an ester group, a polycarbonate or a polyether block amide copolymer. A second layer (12) of the film is a sealant, preferably polypropylene polymer blended with an elastomeric styrene ethylene butylene styrene copolymer. A third layer (16) is disposed between the first and second layers and functions as an adhesive, the third adhesive layer typically being either a polypropylene modified with a carboxy group such as an organic acid or anhydride or a styrene ethylene butylene styrene copolymer.