Patent ID: 6551674
Filing Date: 2003-04-22
Classification: B32B,B65D,Y10S,Y10T

Abstract:
A cook-in bag defining an inside of the bag and comprising a multiple layer film comprising:an inside sealing layer comprising a propylene copolymer, wherein the inside sealing layer is adjacent the inside of the bag; and a second layer directly adhered to the inside sealing layer, the second layer comprising an ethylene/alkyl acrylate copolymer selected from: 1) ethylene/ethyl acrylate copolymer having a melting point satisfying the equation MP&gE;120-1.03 CM, 2) ethylene/butyl acrylate copolymer having a melting point satisfying the equation MP&gE;116-1.28 CM, and 3) ethylene/methyl acrylate copolymer having a melting point satisfying the equation MP&gE;122-1.7 CM, wherein: â€œMPâ€  is the melting point in Â° C.; â€œCMâ€  is the acrylate comonomer content in weight percent; the multilayer film is oriented and has a free shrink at 85Â° C. of at least 5% in at least one direction; and the ethylene/alkyl acrylate of the second layer is crosslinked to the extent that the second layer is not delaminated from the outer sealing layer after two hours submersion in water at 65Â° C.