Pasteurizable and cook-in shrink films

Details Pasteurizable and cook-in shrink films Pasteurizable and cook-in shrink films

B - Operations, Transporting

32

B

217/13, 18/783,

B32B 27/08 (2006.01) B32B 27/16 (2006.01) B32B 27/32 (2006.01) B65D 81/34 (2006.01)

Patent

CA 1216820

PASTEURIZABLE AND COOK-IN SHRINK FILMS ABSTRACT OF THE DISCLOSURE A pasteurizable, cook-in shrink film is provided that comprises a first or sealing and food contact layer composed of propylene homopolymer or copolymer, a second or heat shrinkable layer composed of a blend of propylene homopolymer or copolymer and butylene homopolymer or copolymer; a third or adhesive layer composed of ethylene methacrylate copolymer; a fourth or barrier layer composed of vinylidene chloride copolymer; a fifth or adhesive layer as in said third layer; and a sixth or optical clarity layer as in said first layer; further provided that the foregoing film structure has been oriented and irradiated to a dose of about 4-12 megarads after orienting or alternatively, though less preferred, to about 6-12 megarads before orienting. A method for making said film is also provided.

430285

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