Mobil Oil Corporation

Daniel Lawrence Donk

Robert H Olson

Philip Stanley Baker

A multilayer structure designed to overcome the shortcomings of previously known thermoformed sheet structures. Articles may be formed by a method of the present invention having an attractive outer appearance associated with polyolefin films containing inert inorganic fillers while having the advantageous processing properties of oriented films. The present invention is directed to multilayer structures, methods for forming the multilayer structures as well as shaped articles formed from the multilayer structures. The multilayer structure has at least a first sheet layer comprising a polyolefin and preferably an inert organic filler, and a film layer which advantageously comprises an oriented polyolefin or polyester. The present invention may comprise one or more of each of the above described sheet and film layers.

Multilayered polyolefin structure

A lay flat thermoplastic bag construction having an integral closure means comprising a strip of metallic foil which is secured to one of the bag walls adjacent the open mouth of the bag.

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Phelps, NY, United States of America

Daniel Lawrence Donk