US Patent 10081486 Flexible pouch with frangible seal for hydrogenated water

A flexible pouch having a fitment for accessing the hydrogen water mounted in the corner of the pouch. A frangible seal is disposed between the contents of the pouch and the fitment. The frangible seal is placed on the pouch before the hydrogen water is filled into the pouch. The seal is placed just above the level of the hydrogenated water so as to minimize the amount of oxygen that can enter the pouch and contact the hydrogen water and also to prevent the hydrogenated water from coming into contact with the fitment and cap where the hydrogen can escape due to the fitment and cap having little or no barrier properties.