Patent ID: 6797280
Filing Date: 2004-09-28
Classification: A61K,A61L,C08L,C09J

Abstract:
A permeable adhesive tape comprising a substrate and an adhesive layer formed on one side of the substrate and containing the adhesive agent composition comprising 50 to 90% by weight of an acrylic adhesive agent, 2.5 to 50% by weight of a polyhydric alcohol-containing liquid component, and 0.1 to 10% by weight of an aliphatic acid metal salt formed from an aliphatic acid that has a hydrocarbon group containing 8 to 18 carbon atoms and a mono- to tri-valence metal, the polyhydric alcohol-containing liquid component containing, in addition to the polyhydric alcohol, at least one sorbitan ester compound selected from sorbitan esters and poly (oxyalkylene) sorbitan esters of aliphatic acids having a hydrocarbon group having 12 to 18 carbon atoms, in an amount of 0.5 to 20% by weight based on the total weight of the composition,wherein the substrate comprises an air and water vapor-permeable nonwoven, woven, or knitted fabric or porous film, and the adhesive layer has a thickness of 5 to 1,000 &mgr;m; and the adhesive tape has as a whole, a water vapor permeability of at least 300 g/m2Â·day.