Patent ID: 7244481
Filing Date: 2007-07-17
Classification: A22C,Y10T

Abstract:
1. A tubular, biaxially stretched, heat shrinkable, multilayer film, food casing comprising: (a) from at least about 8% to about 15% by weight of the total weight of the casing, an inner layer comprising a polyamide that is meat-adhering; (b) from at least about 15% to about 20% by weight of the total weight of the casing, an inner adhesive layer adjacent to said inner layer, comprising a LLDPE or blend of LLDPE and EVA; (c) from at least about 3% to about 5% by weight of the total weight of the casing, a core layer adjacent to said inner adhesive layer comprising EVOH; (d) from at least about 15% to about 20% by weight of the total weight of the casing, an outer adhesive layer adjacent to said core layer, comprising a LLDPE or blend of LLDPE and EVA; and (e) from at least about 45% to about 55% by weight of the total weight of the casing, an outer layer comprising a copolyamide; wherein said multilayer film has a shrinkage value of at least 15% in both the transverse direction and the machine direction at 90° C.