Blends of oxygen scavenging polyamides with polyesters which contain zinc and cobalt

An isolated solid comprising a sheet, a preform or a bottle, said solid comprising zinc, cobalt, and a blend of a polyester polymer and an oxygen scavenging composition, the oxygen scavenging composition present in an amount ranging from 0.10 wt. % to 10 wt. % based on the combined weight of the polyester polymer and the oxygen scavenging composition, and

• (A) said polyester polymer comprising:
• (a) a polycarboxylic acid component comprising at least 85 mole % of the residues of terephthalic acid, derivates of terephthalic acid, naphthalene-2,6-dicarboxylic acid, derivatives of naphthalene-2,6-dicarboxylic acid, or mixtures thereof, and
• (b) a hydroxyl component comprising at least 50 mole % of the residues of C2-C4 aliphatic saturated diols,
• based on 100 mole percent of the polycarboxylic acid residues and 100 mole percent hydroxyl residues, respectively, in the polyester polymer;
• and
• (B) said oxygen scavenging composition comprising a polyamide polymer.

A solid concentrate comprising a blend of a polyester polymer and an oxygen scavenging composition, the oxygen scavenging composition present in an amount ranging from greater than 10 wt. % to 50 wt. % based on the combined weight of the polyester polymer and the oxygen scavenging composition, and

• (A) said polyester polymer comprising:
• (a) a polycarboxylic acid component comprising at least 85 mole % of the residues of terephthalic acid, derivates of terephthalic acid, naphthalene-2,6-dicarboxylic acid, derivatives of naphthalene-2,6-dicarboxylic acid, or mixtures thereof, and
• (b) a hydroxyl component comprising at least 50 mole % of the residues of C2-C4aliphatic saturated diols,
• based on 100 mole percent of the polycarboxylic acid residues and 100 mole percent hydroxyl residues, respectively, in the polyester polymer;
• and
• (B) said oxygen scavenging composition comprising a polyamide polymer;
• wherein the concentrate further comprises zinc.