| 摘要 |
PROBLEM TO BE SOLVED: To provide a biaxially oriented laminated polyamide film which has enough oxygen-barrier properties, suppresses the generation of foreign substances (seeding) by the crosslinked gel of an EVOH layer, and is superior in heat stability. SOLUTION: In biaxially oriented laminated polyamide film, a polyamine (A) layer, a polyamide (B) layer, an ethylene-vinyl acetate copolymer saponification product layer, the polyamide (B) layer, and the polyamide (A) layer are arranged in turn in a laminated polyamide film. The polyamide (A) layer contains a polyamide (hereafter called as [polyamide (A)]) with a melting point of 210-250°C as a main component. The polyamide (B) layer contains a polyamide (hereafter called as [polyamide (B)]) with a melting point of 170-205°C as a main component. The laminated polyamide film is bidirectionally stretched 2-5 times in the film flow direction and the direction perpendicular to the film flow direction. COPYRIGHT: (C)2010,JPO&INPIT |
