| abstract |
(57) [Summary] (with correction) [PROBLEMS] A novel medical adhesive having sufficient adhesiveness even when applied to a site where the skin moves rapidly, a patch using such a medical adhesive, and a patch. A skin-absorbable adhesive preparation is provided. SOLUTION: The following formulas (1) to (5) are used as polyether, polyester and polyamide skeletons. (Wherein, A is a divalent aromatic group having 6 to 12 carbon atoms, D is a divalent hydrocarbon group having 2 to 15 carbon atoms, R is an alkylene group having 2 to 4 carbon atoms, and k is (RO) The unit repetition number such that the number average molecular weight of the polyoxyalkylene structure represented by k is 200 to 20,000, and l is the number average molecular weight of the polyoxyethylene structure represented by (CH 2 CH 2 O) is 200 to 2 The number of unit repetitions, R ', being R, 000 is an alkyl group having 4 to 12 carbon atoms. A) a polyetheresteramide-type medical pressure-sensitive adhesive characterized by being composed of a polyetheresteramide copolymer comprising a repeating unit represented by the following formula: |