Patent ID: 8246982
Filing Date: 2012-08-21
Classification: A61K,A61P,C08L,C09J,Y10T

Abstract:
1. A transdermal therapeutic system consisting of (a) a therapeutically active substance-impermeable backing layer; (b) a matrix consisting of a pressure-sensitive adhesive and at least one therapeutically active substance or consisting of a pressure-sensitive adhesive, at least one therapeutically active substance and skin penetration-enhancing substances; and (c) a therapeutically active substance-impermeable, removable protective layer; wherein the pressure sensitive adhesive consists of a combination of two components, component A and component B, wherein component A is an ethylene-vinyl acetate copolymer or a combination of at least two ethylene-vinyl acetate copolymers, the ethylene-vinyl acetate copolymer(s) being a copolymer of ethylene and vinyl acetate, and component B is an adhesive resin, selected from the group consisting of esters of colophony and esters of hydrogenated colophony, and a combination thereof.