Adhesive composition, production method therefor, adhesive, patch, wearable device, and wearable device kit

Abstract

Provided are an adhesive composition that can provide an adhesive agent that has a good balance between the adhesive force to the skin and the adhesive force to a device, is skin friendly (capable of gently attaching and detaching an adherend to and from the skin, and low toxic), and has improved antibacterial properties, and the like. An adhesive composition comprising a hydroxyl-terminated urethane prepolymer and a polyisocyanate compound, in which the hydroxyl-terminated urethane prepolymer is a reaction product of an oxyalkylene polymer and a diisocyanate compound in the presence of a tin-free catalyst, the oxyalkylene polymer includes an oxyalkylene polymer A having the number of hydroxyl groups per molecule of 2 or more and an oxyalkylene polymer B having the number of hydroxyl groups per molecule of 1, and the hydroxyl-terminated urethane prepolymer has an average content of structural units based on ethylene oxide of 8 to 50% by mass.

Dependencies are inferred from the claim text.