| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laminate film which, when formed into a gas-barrier laminate film provided with an inorganic thin film layer, can exhibit excellent gas-barrier property and such preferable adhesive property as to cause no delamination not only in a normal state but also after being subjected to retort treatment, moreover, which is easily manufactured and also is excellent in cost effectiveness. <P>SOLUTION: The laminate film is made by providing a cover layer on at least one surface of a plastic base film, the cover film contains an oxazoline group and also contains a carboxylic acid group-containing urethane resin which has polyester polyol as a constituent, a thickness (D) of the cover layer is 5 to 100 nm, and the ratio (P1/P2) of peak intensity (P1) of the peak having the absorption maximum in the region of 1,655±10 cm<SP POS="POST">-1</SP>to peak intensity (P2) of the peak having the absorption maximum in the region of 1,580±10 cm<SP POS="POST">-1</SP>and the thickness (D) of the cover layer satisfy the following relation of 0.03≤(P1/P2)/D≤0.15. <P>COPYRIGHT: (C)2013,JPO&INPIT |
