Patent ID: 8277892

Claim:
A method for creating an oxygen scavenging particle comprising the steps of: (A) depositing a first compound which is a precursor compound from a liquid or gas phase onto an oxidizable particle; wherein said first compound is reacted with a second compound deposited on the oxidizable product which reacts to form a third compound which is an acidifying electrolyte on the oxidizable particle which produces a pH less than 7 in a dilute aqueous solution and substantially disassociates into positive and negative ions in the presence of moisture wherein the third compound is capable of initiating the reaction of the oxidizable particle with oxygen, wherein the second compound comprises SO 3 and is deposited on the particle from a gas stream; (B) wherein depositing is carried out under conditions sufficient for said second reactive compound to react with the first compound to form the third compound, and wherein the third compound is capable of initiating the reaction of the oxidizable particle with oxygen when the oxidizable particles comprising the third compound are exposed to water.