Adhesive Composition

Abstract: This adhesive composition comprises: a first liquid which contains gelatin that has an amino group; and a second liquid which contains a crosslinking agent that has a polyethylene glycol skeleton and at least two functional groups, which are capable of undergoing a crosslinking reaction with the amino group, in each molecule. The pH of the first liquid at 25°C is 6.5 to 9.0. The storage elastic modulus of the first liquid at 25°C is 1.0 Pa or less. The amino group concentration in the first liquid is 4.0 mM to 40.0 mM. The functional group concentration of the functional groups contained in the crosslinking agent in the second liquid is 2.0 mM to 65.0 mM. The weight average molecular weight of the crosslinking agent is 10,000 or more.

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