Abstract: Disclosed herein are oxygen scavenging compositions and packaging articles that comprise (a) a metal catalyzed oxidizable compound and (b) at least one of a transition metal carboxylate, wherein the transition metal carboxylate comprises at least one carboxylate group and wherein each carboxylate group comprises between 20 and 30 carbon atoms, inclusive, such as cobalt behenate or cobalt arachidate.

Abstract: We disclose a packaging article, defining a package interior and a package exterior, and comprising (i) a first layer, containing an oxygen scavenging polymer the oxygen scavenging polymer comprises (a) an ethylenic backbone or a polyester backbone and (b) at least one cyclic olefinic group; (ii) a second layer, containing a functional barrier polymer; and (iii) a transition metal organic salt in at least one of the first layer or a layer adjacent to the first layer; wherein the second layer is located between the first layer and the package interior. The packaging article can further comprise a functional absorber. Such a packaging article is capable of both scavenging oxygen present in the package interior and inhibiting the migration of off-taste- or off-odor-imparting scavenging byproducts from the first layer to the package interior.