Patent ID: 8486443

Claim:
A transdermal therapeutic system consisting of: a backing layer, one or more UV absorber-containing layers, a separating layer, one or more active ingredient-containing matrices, and optionally a detachable sheet wherein the one or more UV absorber-containing layers are provided between the backing layer and the separating layer, and the separating layer is provided between the one or more UV absorber-containing layers and the one or more active ingredient-containing matrices, an active ingredient-containing matrix and a UV absorber-containing layer are self-adhesive and comprise a polymer selected from the group consisting of polyisobutylene, polybutene, polyacrylate, styrene/isoprene block polymer, polyisoprene and combinations thereof, the separating layer is impermeable to the active ingredient and impermeable to the UV absorber, and the separating layer has a layer thickness of from 4 to 10 μm.