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:
Feb. 25, 2014
Filed:
Nov. 26, 2009
Peter Gansen, Seeburg, DE;
Michael Dittgen, Apolda, DE;
Ingeborg Steinfatt-hoffmann, Hoerden, DE;
Christian Schulte, Goettingen, DE;
Juergen Henze, Duderstadt, DE;
Peter Gansen, Seeburg, DE;
Michael Dittgen, Apolda, DE;
Ingeborg Steinfatt-Hoffmann, Hoerden, DE;
Christian Schulte, Goettingen, DE;
Juergen Henze, Duderstadt, DE;
Otto Bock PUR LifeScience GmbH, Duderstadt, DE;
Abstract
A method for producing an active substance-containing polyurethane plaster for transdermal application is described, said plaster containing at least one active substance at a highly accurate declared dose. In the described method, a solvent-free active substance-containing polyurethane is produced by reactively coating a solvent-free active substance-containing polyurethane material (), which is mixed in a coating unit () immediately before or during the application process, onto an elastic backing foil () that has been rendered non-extensible at least in the direction in which the applied polyurethane material is processed by means of a supporting, adhering auxiliary foil () which is at least mono-axially non-extensible.