Resin for oxygen-absorbing adhesive and oxygen-absorbing adhesive

A two-part curable oxygen-absorbing resin composition comprising:

• (i) a main agent comprising a resin, wherein
• the resin is a polyester comprising structural units derived from an acid component (A) and an acid component (B),
• the ratio of the acid component (A) is 70% to 95% by mole relative to all acid components,
• the ratio of the acid component (B) is 0% to 15% by mole relative to the all acid components, and
• the glass transition temperature of the polyester is −20° C. to 0° C.;
• and
• (ii) a curing agent component selected from the group consisting of aliphatic diisocyanates, alicyclic diisocyanates, and combinations thereof,
• wherein:
• the acid component (A) is a tetrahydrophthalic acid, a derivative thereof, a tetrahydrophthalic anhydride, or a derivative thereof, wherein the derivative is an ester, an acid halide, a substituted compound, or an oligomer and
• the acid component (B) is a phthalic acid or an analog of the phthalic acid.