The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2008
Filed:
Mar. 25, 2005
Stefan Bracht, Jena Cospeda, DE;
Stefan Bracht, Jena Cospeda, DE;
Schering AG, Berlin, DE;
Abstract
The medicinal patch for delivering a pharmaceutically effective ingredient by contact with skin has a backing layer (), an effective-ingredient containing adherent layer () on the backing layer and a release layer () applied over the adherent layer (). To eliminate a dirt ring deposited when the medicinal patch is finally removed from the skin, a plastic foil or film () is provided on an outer peripheral or edge region of the skin-contacting surface of the adherent matrix layer (). The plastic foil or film, which does not adhere to the skin, can be made of polyester, hydrocarbon polymers or silicone polymers and preferably has a thickness of 15 to 75 μm with a width of 1 to 3 mm. Methods of making medicinal patches of this sort are described.