Nonionic surfactant, adhesive for skin application, skin application

摘要

PROBLEM TO BE SOLVED: To provide a nonionic surfactant having excellent percutaneous absorption of a hydrophilic agent in a short time, and a pressure-sensitive adhesive for skin application using the surfactant. SOLUTION: A nonionic surfactant (A) containing a polymer (P) containing a structural unit having a structure represented by the general formula (1) and a structural unit having a sterol structure, and a Solid-in-oil. A pressure-sensitive adhesive for skin application containing a complex (d) with a (S / O) type hydrophilic compound and an oily component (c). General formula (1)[In the general formula (1), X is a carbon atom or (C = O) O, n is an integer of 2 to 100, y is 0 or 1, and M is a hydrogen atom or It is an alkyl group having 1 to 4 carbon atoms, and * represents the bonding position with the main chain of the polymer (P). ] [Selection diagram] None