CATALYTIC PROCESS FOR REMOVING OXYGEN FROM SEALED PACKAGES

摘要

A method of removing small quantities of entrained oxygen from sealed packages containing an oxidizable product said method utilizing a particulate catalyst which has high activity for combining hydrogen and oxygen, the catalyst particles being partially encapsulated on a surface of a water-insoluble adhesive which is applied to a predetermined area of the inside surface of the sealed package. The catalyst can be a platinum group metal supported on a porous inert carrier. The adhesive material can be poly(vinylbutyral), nitrocellulose, ethyl cellulose, a polyurethane or a silicone material (e.g., a silicone rubber). The oxidizable product can be a perishable foodstuff.