| abstract |
The present invention provides a urethane prepolymer, an adhesive, a sticking material, an adhesive that can obtain an adhesive having good moisture permeability and simultaneously achieving low adhesion to the skin and high adhesion to a substrate Tapes, wearables and wearables kits. In the hydroxyl-terminated urethane prepolymers, adhesives, attachment materials, adhesive tapes, wearable devices and wearable device kits, the hydroxyl-terminated urethane prepolymers are composed of an average of per 1 molecule. An alkylene oxide polymer A having 2.1 to 3 hydroxyl groups, an alkylene oxide polymer B having 1 hydroxyl group per molecule reacted with a diisocyanate compound, wherein the alkylene oxide polymer B has a number average The molecular weight is 5000 or more, and the content of the ethylene oxide unit in the hydroxyl-terminated urethane prepolymer exceeds 10 mass %. |