Patent ID: 7842361

Claim:
An oxygen-absorbing resin obtainable by polymerization of a raw material comprising monomer (A) in which a carbon atom adjacent to a carbon-carbon double bond in an unsaturated alicyclic structure is bonded to an electron donating group and to a hydrogen atom, another carbon atom adjacent to the carbon atom is bonded to a heteroatom-containing functional group or a bonding group derived from the functional group, and the electron donating group and the heteroatom-containing functional group or the bonding group derived from the functional group are in the cis position, wherein an amount of the unsaturated alicyclic structure included in the oxygen-absorbing resin is from 0.5 meq/g to 10 meq/g, wherein the monomer (A) is selected from the group consisting of cis-3-methyl-Δ 4 -tetrahydrophthalic acid, a derivative thereof, cis-3-methyl-Δ 4 -tetrahydrophthalic anhydride, and a derivative thereof.