C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
18/1040, 154/138
C08L 23/00 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01) C08L 23/14 (2006.01) C08L 23/16 (2006.01) C08L 23/20 (2006.01)
Patent
CA 1124920
ABSTRACT OF THE DISCLOSURE A heat-shrinkable multilayer film suitable for use in the packaging of a frozes poultry, includes a first outer layer comprising a blend of a propylene-ethylene copolymer having a high isotactic molecular structure with less than about ? by weight ethylene and having a melt flow of from about 1.5 to about 18 decigrass per minute; an (butane-1)-ethylene copolymer having a high isotactic molecular structure with less than about 10% by weight being ethylene and having a melt flow of from about 0.1 to about 5.0 decigram per minute and a thermoplastic elastomer selected from the group consisting of ethylene-propylene copolymers and ethylene-propylene ? terpolymers, the ratio by weight of the propylene- -ethylene copolymer to the (butene-1)-ethylene copolymer being from about 2:1 to about 1:1 and the thermoplastic elastamer being present from about 10% to about 50% by weight; and best shrinkable and comprising an extrudable oriented and best shrinkable and comprising an extrudable adhesive; and a second outer layer comprising a polymer selected from the group consisting of ethylene homopolymers and copolymers each having a highly branched molecular structure; the multilayer film being biaxially oriented.
318965
Kohler William J.
Vicik Stephen J.
Hopley William G.
Union Carbide Corporation
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