Gas absorbing means for a container

摘要

A method of manufacturing an absorbing system suitable for removing gases or vapours from a sealed container, and an absorbing system so manufactured; a pouch is made by dielectrically welding a gas permeable membrane (18) to a body part (16) of a different impermeable material. The pouch encloses a scavenger material (20), and may be made of a polymeric membrane. The body part may form part of a cap or closure.