| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyethylene-polypropylene coextrusion-laminated molded-article that has an excellent balance in cost and performance and excellent interlayer adhesiveness while using a biaxially oriented polypropylene film (BOPP) as a base material. SOLUTION: The coextrusion-laminated molded-article is composed by melt-coextruding the following (A)/(B) resin layers on a base material using a biaxially oriented polypropylene film (BOPP) so that the polypropylene film and the (A) resin layer are in contact with each other. The (A) resin layer; an ethylene resin polymerized by using a metallocene catalyst and mainly composed of an ethylene-α-olefin copolymer having a specific physicality. The (B) resin layer; a propylene resin polymerized by using a metallocene catalyst and mainly composed of a propylene-α-olefin random copolymer having a specific physicality. COPYRIGHT: (C)2009,JPO&INPIT |
