Patent ID: 6177159
Filing Date: 2001-01-23
Classification: B32B,Y10T

Abstract:
A composite sheet for food containers comprising:(A) an aroma proof resin layer comprising a member from the group consisting of a saturated polyester resin, a polycarbonate resin, a copolymer comprising the three components of bisphenol A, diphenyl carbonate and 1,10-decanedicarboxylic acid and a mixture of at least two of these resins, (B) a polyamide resin layer, (C) a water vapor barrier resin layer, (D) a gas barrier resin layer and (E) a thermoplastic support resin layer, these layers being laminated in succession in the order of A-B-C-D-E, wherein layers A and E contain different resins, and layers B and D contain different resins.