Patent ID: 6730318
Filing Date: 2004-05-04
Classification: A61F,A61K,A61Q

Abstract:
A transdermal delivery device for delivering an effective amount of a chemical agent to the skin of a subject, comprising an impermeable backing layer, and a pressure-sensitive adhesive layer selected from the group consisting of: acrylic copolymers, water-borne acrylic copolymers, vinyl acetate copolymers, rubbers, and latex, wherein said pressure-sensitive adhesive layer contains an adhesion adjusting amount of a polydiorganosiloxane polymer fluid, having the formula (R)3Siâ€”Oâ€”[(R)2Siâ€”Oâ€”]nSi(R)3, wherein R is a hydrocarbon or substituted hydrocarbon of 1 to about 20 carbon atoms and n is an integer sufficient to cause said polydiorganosiloxane to have a viscosity of between about 20 and 25,000 centistokes, in order to provide said pressure-sensitive adhesive layer with a degree of tackiness of from about 236 g to about 501 g.