| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate that uses high proportion of biomass and that can be used as a bottom material for a PTP package and blister package.SOLUTION: The laminate 10 according to the invention comprises surface layers 12, 13 on both sides and a biomass polyethylene layer 11 as an interlayer. The biomass polyethylene layer 11 has a composition comprising 100%-30% of biomass LLDPE and 0%-70% of biomass HDPE. The biomass polyethylene layer 11 and the surface layers 12, 13 are laminated by adhesion. The surface layers 12, 13 are preferably a layer comprising any one selected from polypropylene-based resin, polyethylene-based resin, polyvinyl chloride, vinylidene chloride resin and fluorine-based resin. The thickness of the biomass polyethylene layer 11 is preferably 25% or more of the total thickness of the laminate 10. |
