| 摘要 |
PROBLEM TO BE SOLVED: To improve the flavorfulness, heat resistance and impact resistance by disposing a polyester layer, and a polyester layer containing a polyester composition which contains an ethylene copolymer ionomer on a laminated film for laminating a metal plate. SOLUTION: This laminated polyester film for laminating a metal plate comprises a polyester layer and a polyester layer containing a polyester composition which contains an ethylene copolymer ionomer disposed thereon. These polyesters preferably include polyethylene terephthalate, polyethylene-2,6- naphthalene dicarboxylate, polytetramethylene terephthalate from the points of view of heat resistance, impact resistance and flavorfulness. The ethylene copolymer ionomer is that at least a part of the carboxyl group of the ethylene- unsaturated carboxylic acid copolymer is neutralized by a metallic cation, and preferably includes acrylic acid, methacrylic acid, maleic anhydride from the points of view of adhesive properties with the metal plate and impact resistance after a can is manufactured. |
