| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a composite sheet for a food container having gas barrier properties and a performance of a high temp. sterilizable container made of a synthetic resin and also having drastic aroma retentivity and low temp. impact resistance. SOLUTION: A composite sheet for a food container is constituted by laminating an aroma retaining resin layer (A) composed of a copolymer consisting of three components, that is, bisphenol A, diphenyl carbonate and 1,10- decanedicarboxylic acid, a polyamide resin layer (B), a steam barrier resin layer (C), a gas barrier resin layer (D) and a thermoplastic support resin layer (E) in the order of A-B-C-D-E. The polyamide resin layer (B) comprises a co- condensation resin of nylon 6 and nylon 66 and the relation between the thickness TB of the polyamide resin layer (B) and the total thickness TT of the composite sheet for the food container is set to 0.01<TB/TT<0.08.</p> |
