Patent ID: 7279178

Claim:
A method for providing therapeutic applications in humane medicine, said method comprising the step of applying to living skin a therapeutically active substance-containing therapeutic system, the system comprising three polymer-containing layers, wherein; a first layer comprises a polymer having a glass transition temperature (T g 1 ), a second layer comprises a polymer having a glass transition temperature (T g 2 ), and a third layer comprises a polymer having a glass transition temperature (T g 3 ), said first, second and third layers being laminated on top of each other such that said second layer is located between said first layer and said third layer and is directly connected to the first layer and to the third layer; and wherein T g 2 is greater than T g 1 and T g 3 , and the glass transition temperature T g 1 of the polymer of said first layer and the glass transition temperature T g 3 of the polymer of said third layer are identical or different, wherein at least one of said three polymer layers contains at least one therapeutically active substance and wherein said glass transition temperatures of said layers improve cohesion of said system for reducing cold flow in said system.