B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/140, 204/91.
B32B 27/08 (2006.01) B32B 27/16 (2006.01) B32B 27/30 (2006.01) B65D 30/02 (2006.01) B65D 65/40 (2006.01)
Patent
CA 1340435
A heat-shrinkable, multilayer film suitable for use in fabricating bags for packaging primal and sub-primal meat cuts and processed meats. The multilayer film contains a barrier layer comprising a blend of vinylidene chloride-methyl acrylate copolymer and vinylidene chloride-vinyl chloride copolymer having between about 2.9 and about 13.5 weight percent methyl acrylate, and between about 2.9 and about 11.6 weight percent vinyl chloride in the blend. The multilayer film preferably has the copolymer blend as a core layer with first and second outer layers preferably comprising ethylene-vinyl acetate copolymer. The film may be extruded without processing difficulties and is preferably irradiated, but the barrier layer does not show significant discoloration with irradiation.
567027
Curwood Inc.
Sim & Mcburney
Viskase Corporation
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