Pechiney Emballage Flexible Europe

Alcan Packaging Flexible France

Exopack LLC

Chad M Perre

Robert J Blemberg

Jay Daniel Hodson

Gregory L Petkovsek

Richard Littmann

Duane H Buelow

Anne L Ehrenberger

Jay D Hodson

A film having a line of weakness and a method for making a film having a line of weakness are provided. The film has a barrier layer of extruded ethylene vinyl alcohol laminated on one side to a first layer of oriented polypropylene having a score line therein. The barrier layer is laminated on its second side to a second layer of polyethylene teraphthalate having a score line therein. The score line in the oriented polypropylene layer and the score line in the polyethylene teraphthalate layer lie in a plane substantially perpendicular to a plane of the film forming the line of weakness.

Dual scored easy open film

A multilayer laminate useful in the packaging of respiring food products such as swiss-type cheeses which generate or release carbon dioxide gas during storage and wherein said multilayer laminate allows for the egress of said gas while minimizing the ingress of oxygen. The multilayer laminate comprises at least one layer of a low gauge polyamide such as poly (-caprolactam).

Film structures and packages therefrom useful for packaging respiring food products

The present invention relates to a film structure and a method of manufacturing the same. More specifically, the film structure may include a barrier material made from EVOH, nylon or other thermally sensitive barrier material encapsulated by a first adhesive material. The barrier material and the first adhesive material form a barrier layer and a first set of adhesive layers when coextruded. The barrier layer and the first set of adhesive layers may be coextruded at the same or a similar temperature to form a first extrudate. The extrudate may be encapsulated by or otherwise coextruded with a second adhesive material to form a second extrudate at a higher temperature than the first extrudate that then may be formed into a flat sheet via a die. The first set of adhesive layers protects the barrier layer from high temperatures and long residence times related to the coextrusion/lamination process that may degrade the barrier layer. In addition, acid terpolymer consisting of ethylene/methyl acrylate/acrylic acid adheres a barrier material of EVOH to outer layers of the film structure.

Encapsulated barrier for flexible films and a method of making the same

Non-wax film structures having three layers wherein the first skin layer comprises a polymer or blend of polymers and a hydrogenated aliphatic hydrocarbon additive; a second core layer comprises a polymer or a blend of polymers, a hydrogenated aliphatic hydrocarbon additive and regrind material; and a third sealant layer comprises a polymer or blend of polymers and a cheese release agent are disclosed. The film structures are useful in the packaging of food products, especially cheese.

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Oshkosh, WI, United States of America

Chad M Perre