Enhanced oxygen-scavenging polymers, and packaging made therefrom

A plastic package comprising:

• a package having at least one internal layer comprising an oxygen scavenging composition comprising a solid-stated polyamide and a transition metal in an amount of at least 200 ppm in the polyamide, and
• the package being filled with an aqueous liquid having an oxygen concentration of 100 ppb or less and sealed, the sealed package reducing and maintaining the oxygen concentration of the liquid below 100 ppb for 32 weeks;
• and
• the solid-stated polyamide formed by heat treatment at a temperature above the glass transition temperature and below the melting temperature of the polyamide while under a low oxygen content atmosphere and in the presence of the metal or the metal being added to the polyamide after being solid stated, and
• the composition having an oxygen scavenging performance greater by a factor of at least 1.3 as compared to a composition of the transition metal and non solid-stated polyamide.