BIAXIALLY ORIENTED POLYAMIDE-BASED RESIN FILM

摘要

PROBLEM TO BE SOLVED: To provide a biaxially oriented polyamide-based resin film excellent in toughness and pinhole resistance and suppressing strain of S-shaped curl to the utmost by proposing an index reflected by grasp of S-shaped curl. SOLUTION: In the biaxially oriented polyamide-based resin film, the product of a molecular orientation angle (θ) with a molecular orientation ratio (MOR) satisfies the formula:θ×MOR≤18 and thrusting strength based on thrusting strength test is≥8N and boiling water shrinkage based on boiling water shrinkage test satisfies≤5% in all directions of biaxially oriented polyamide-based resin film surface and drawing angle in lateral elongation by tenter lateral drawing after carrying out roll vertical drawing in production of the film is kept to≤5°. COPYRIGHT: (C)2006,JPO&NCIPI