| 摘要 |
PROBLEM TO BE SOLVED: To strengthen adhesion between aluminum foil and other members by using polyolefin film, where no contaminant is contained or contaminant content is reduced, for dry lamination on the aluminum foil. SOLUTION: A laminated body composed by sequentially laminating polyolefin film, adhesive for dry lamination, and aluminum foil is laminated in a reel, where the adhesive is hardened through aging. For polyolefin used for the polyolefin film, polyethylene and polypropylene, most preferably polyethylene is suitable. The polyolefin contains no additive such as an antioxidant, a slip agent, or the like, and no contaminant such as low-molecular polymer or the like, or those contents are reduced. Polyolefin having low content of low-molecular polymer can be manufactured, for example, by polymerizing olefin by using so-called metallocene catalyst. |
