Two-part curable adhesive composition

A two-part curable adhesive composition, comprising:

• a main agent (A) containing a urethane prepolymer (a1);
• a curing agent (B) containing a non-crystalline polyol compound (b1) and a polyamine compound (b2),
• the urethane prepolymer (a1) being obtained by reacting a raw polyisocyanate and a crystalline polyol compound having a number average molecular weight of 500 or greater and having at least one hydroxyl group per molecule in such a manner that an equivalent ratio of an isocyanate group in the raw polyisocyanate to the hydroxyl group in the crystalline polyol compound is from 2.05 to 12 and all of the crystalline polyol compounds are monomer units of the urethane prepolymer (a1),
• the main agent (A) further containing, in addition to the urethane prepolymer (a1), a remaining polyisocyanate (a2) being a remainder of the raw polyisocyanate not having been reacted with the crystalline polyol compound,
• the non-crystalline polyol compound (b1) being a compound having a number average molecular weight of 1000 or greater and having at least two hydroxyl groups per molecule, and the equivalent ratio of the isocyanate group in the main agent (A) to an amino group in the polyamine compound (b2) and the equivalent ratio of the isocyanate group in the main agent (A) to the hydroxyl group in the non-crystalline polyol compound (b1) being adjusted in such a manner that a storage modulus (E1′) at 130° C. of a cured product obtained by curing the two-part curable adhesive composition is 50% or greater of a storage modulus (E2′) at −40° C.