Exxonmobil Chemical Patents Inc.

Exxon Chemical Patents, Inc.

Achiel Josephus Van Loon

Michael Jan Vinck

Patrick Henk Espeel

Fiona Donald

The invention relates to bags with a heat seal zone formed by a composition comprising an interpolymer of ethylene and an alpha-olefin having an MI of from 1.5 to 4.5 g/10 min, preferably from 1.7 to 3.5 g/10 min, and especially from 1.8 to 2.5 g/ 10 min, and a density of from 0.88 to 0.94 g/cm, preferably from 0.91 to 0.93 g/cmand especially from 0.912 to 0.922 g/cm,and a CDBI of at least 50%, preferably at least 55% and especially at least 60%, and less than 20 wt % of LDPL; and to uses of films for making such bags.

Bags made from ethylene copolymer films, and films and uses of such copolymers for making such bags

A film having a polypropylene surface layer and a polyethylene surface layer is used in fill and seal packaging applications, in which the polyethylene layer consists essentially of a ethylene copolymer having a narrow molecular weight distribution ethylene and a CBDI of greater than 50%. The package is formed by heat sealing the polyethylene surface to the polypropylene surface of the film to form a transverse seal.

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Schoten, Belgium

Achiel Josephus Van Loon