MULTILAYERED LIQUID CONTAINER

摘要

A multilayered liquid container having a discharge port plug fusion-bonded under specific conditions to a sealant which is constituted of a resin comprising a cycloolefin resin as a major component.  The discharge port plug is composed of: an innermost layer constituted of a resin comprising a cycloolefin resin as a major component; and a surface layer, the main part of which is constituted of a resin comprising a specific polyethylene as a major component.  This multilayered liquid container can prevent the effective component of liquid contents from being adsorbed onto or penetrating through not only the container main body but also the resins constituting the discharge port plug.  This container is capable of high-temperature sterilization.  The discharge port plug has high fusion bonding strength and high drop strength.