B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
154/140, 402/622
B29C 55/12 (2006.01) B32B 27/08 (2006.01) B32B 27/30 (2006.01) B32B 27/32 (2006.01) B65D 65/40 (2006.01)
Patent
CA 1340037
Heat-shrinkable films suitable for packaging food articles such as frozen poultry, primal meat cuts, and processed meat products. In one embodiment, the film may be a biaxially stretched monolayer film of a very low density polyethylene copolymer (ethylene copolymerized with higher alpha olefins containing 3 to 8 carbon atoms such as propylene, butene, pentene, hexene, heptene and octene). In another embodiment, the film may be a biaxially stretched multilayer film comprising a first outer layer of an ethylene-vinyl acetate copolymer, a core layer of a barrier film such as a polyvinylidene chloride copolymer or an ethylene-vinyl alcohol copolymer, and a second outer layer comprising a blend of an ethylene-vinyl acetate copolymer and a very low density polyethylene copolymer. The multilayer film is preferably made by coextrusion of the layers. The films are fabricated into bags useful for the aforementioned purposes. The bags have improved toughness.
506172
Lustig Stanley
Mack Nancy Marie
Schuetz Jeffrey Michael
Vicik Stephen James
Curwood Inc.
Sim & Mcburney
Union Carbide Corporation
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