FILM FOR PACKAGING RETORT FOOD HAVING A GAS BARRIER PROPERTY

摘要

The present invention relates to a novel retort food product package laminate film. The laminate film includes: a polypropylene base resin layer; a graphene layer formed on the upper surface of the polypropylene base resin layer; a compound composition formed on the upper surface of the graphene layer; and an adhesive agent layer which is coated on a surface of the complex composition layer and is bonded with the graphene layer. The composite composition layer includes: 100 parts by weight of the polypropylene resin; 5-40 parts by weight of norbornene-based ring polyolefins; 0.5-20 parts by weight of polyolefin-based rubber and polyolefin-based elastomers; and 1-20 parts by weight of inorganic nano-particles. The compound composition layer also additionally includes 0.1-5 parts by weight of the fluorene-based compound. The laminate film has excellent heat resistance, transparency, gas barrier properties, and moisture barrier properties. Accordingly, the present invention can provide an excellent retort pouch film capable of satisfying the stringent retort processing conditions.