Medical pressure-sensitive adhesive mass having a high moisture vapor transmission and a high adhesive strength on dry human skin and in case of intense perspiration

摘要

A medical pressure sensitive adhesive mass having a moisture vapor transmission of at least 10,000 g/m.sup.2 /24.h (measured with a pressure sensitive adhesive film having a weight of 30 g/m.sup.2) and an excellent adhesion to both dry skin and that is moist due to perspiration, comprising:PPA) a copolymer synthesized from components comprising:PP1) 50 to 95%-wt., preferably 70 to 90%-wt., based on the weight of the copolymer, of one or several alkyl esters of acrylic and/or methacrylic acid have 4 to 12 C-atoms in the alkyl residue; andPP2) 5 to 50%-wt., preferably 10 to 30%-wt., based on the weight of the copolymer, of a vinylcarboxylic acid,PP B) 25 to 90%-wt., preferably 50 to 80%-wt., of a hydrophilic emulsifier comprising tertiary or quaternary ammonium groups,PPC) 15 to 60%-wt., preferably 20 to 40%-wt., of a hydrophilic polyoxyalkylene groups- containing emulsifier which is free from amino groups,P PD) 1 to 20%- wt., preferably 3 to 15%-wt., of a polyvinylcarboxylic acid,PP E) 1 to 15%-wt., preferably 3 to 10%-wt., of a tackifying resin, andPPF) 0.05 to 5%-wt., preferably 0.1 to 2%-wt., of a cross-linking agent. The medical pressure sensitive adhesive mass is useful as sweat insensitive occlusive dressing, highly permeable wound dressings and medical adhesive tapes.