| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve stability of a seal and easily peelable properties by using as an inner wall surface a composition containing cyclic polyolefin and a linear polyolefin. SOLUTION: A cyclic polyolefin containing a cyclic component obtained by ring opening and polymerization of tetracyclo [4.4.0.1.1]-3-dodecene is used as a component A. A linear polyolefin composed of polymer mainly containingα-olefin component such as ethylene, prolylene, or butene-1 comoponent is used as a component B. Composition containing the both components A, B forms the inner wall surface of this container. Weight ratio A:B of the both components A, B is 70:30-20:80, more preferably, 60:40-25:75. This structure stabilizes seal strength and improves easily peelable properties.</p> |
