POLYPROPYLENE COMPOUND AND SHEET STRUCTURE PRODUCED THEREFROM

摘要

The composition which forms the basis of films and plural layer sheet materials for packaging is a blend of a first component of a polypropylene polymer with a second component of an ethylene-based copolymer, the latter having an ethylene copolymerized with moieties of a second molecule where the second molecule is selected from the group consisting of propylene and butene-1. One plural layer sheet material has a barrier layer such as a vinylidene chloride polymer layer (24) sandwiched between an abuse resistant layer (14) and a layer (12) made from the blend composition; layer (12) can be used as inner surfaces and to form peripheral heat seals (28) in the manufacture of a packaging pouch (30) from confronting pieces of the sheet material.