Use of thermoplastic copolyester or copolyamide elastomer to increase functionalized polyolefin films

An oxygen-scavenging composition, comprising:

• (I) an oxidizable metal component, wherein the oxidizale metal component consists of oxidizable metal particles having particles sizes ranging from 10 μm to 1,000 μm;
• (II) an electrolyte component;
• (III) a non-electrolytic, acidifying component;
• and
• (IV) a thermoplastic elastomer based on polybutylene terephthalate/polytetrahydrofuran, polybutylene terephthalate/polytrimethylene glycol, polybutylene terephthalate/polytrimethylene oxide, polybutylene terephthalate/polybutylacrylate, polybutylene terephthalate/glycol or polybutylene terephthalate/polyolefin,
• wherein:
• component (II) and component (III) are present in a weight ratio of 10/90 to 90/10;
• component (II) and component (III) are present in a total amount of 20 to 500 parts per 100 parts by weight of component (I);
• component (II) and component (IV) are present in a weight ratio of 10/90 to 90/10;
• and
• component (II) and component (IV) are present in a total amount of 20 to 500 parts per 100 parts by weight of component (I).