| 摘要 |
An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound with N-N bond in a ring thereof. An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound with N-substituted amino group. An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound represented by the following formula:(wherein a, b are integers between 0 and 5 to satisfy a relation "2<=a+b<=5").An oxygen scavenger characterized in that the effective component thereof consists of azodicarbonamide. An oxygen scavenger characterized by including a heterocyclic compound with N-substituted amino group, or the salt thereof, and a hydroxybenzene derivative. Those may contain further neutral amine, alkalic agent and/or water soluble polymer.
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