| 摘要 |
PROBLEM TO BE SOLVED: To provide a polylactic acid film and seat excellent in slipping performance and seal strength such as heat seal strength. SOLUTION: The polylactic acid film and seat are produced by being compounded 3-70 pts. wt. biodegradable aliphatic polyester having≤0°C glass transition point Tg into 100 pts. wt. polylactic acid-based polymer, at least uniaxally drawn and heat-treated. Thereby, as slipping, the coefficient of static friction according to JIS K 7125 is made≤0.72 and, as seal strength, heat seal strength in a specific test is made≥0.93 Kgf/cm. COPYRIGHT: (C)2004,JPO |
