| abstract |
An object of the present invention is to provide a laminate for food packaging and a packaging material containing the laminate, which has sufficient delamination resistance to prevent delamination and imparts a radiance to the inorganic layer.nn n n The layered system of the present invention is provided with at least a layered body of a polyolefin-based resin layer (I), a vapor-deposited layer (II), and an inorganic layer (III); and the vapor-deposited layer contains a vapor-deposited layer. The composition (P) and the polypropylene (D) are different from the polyolefin-based resin layer (I); the composition for vapor-deposited layer (P) is isotactic polypropylene (A) 30 to 85% by weight, propylene 70 to 15% by weight of the copolymer (B) (wherein the total of (A) and (B) is 100% by weight), and if necessary, an additive is obtained by melt-kneading, and the isotactic polypropylene (A) And/or a part or all of the propylene-based copolymer (B) is subjected to graft modification using a graft monomer (C), and the propylene-based copolymer (B) is different from the isotactic polypropylene (A). And comprising: (i) a constituent unit derived from propylene (U 3 ) of 45 to 89 mol%, and at least one constituent unit derived from an α-olefin from among ethylene and an α-olefin having 4 to 20 carbon atoms. (U 0) 11 ~ 55 mole% (wherein the constituent unit (U 3) derived from propylene, with the total constituent units (U 0) derived from α- olefin is 100 mole%). |