Hydrophilic pressure sensitive biomedical adhesive composition
December 7, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3892905 Hot and cold water redispersible polyvinyl acetate adhesives Aqueous acrylic contact adhesive Polymeric diffusion matrix containing phenylpropanolamine Polymeric diffusion matrix containing terbutaline Polymeric diffusion matrix containing clonidine Polymeric diffusion matrix containing phenylephrine Liquid gel concentrates and methods of using the same Polymeric diffusion matrix containing propranolol Protective skin matrix Patent #: 4492685 InventorsAssigneeApplicationNo. 06/679653 filed on 12/07/1984US Classes:523/111, Compositions for use in tape adhesives, binder or impregnate for a body fluid adsorbent device, e.g., a surgical adhesive tape, etc.514/944, GEL523/105, Nonmedicated composition specifically intended for contact with living animal tissue or process of preparing; other than apparel524/503Polyvinyl alcohol or modified form thereofExaminersPrimary: Griffin, Ronald W.Attorney, Agent or FirmInternational ClassesA61K 9/70 (20060101)A61L 15/58 (20060101) A61L 15/16 (20060101) C09J 139/06 (20060101) C09J 139/00 (20060101) C08L 29/04 (20060101) C08L 29/00 (20060101) AbstractNovel, hydrophilic, skin-compatible, pressure sensitive, solid, adhesive gel hydrogel composition comprising 25 to 50 weight percent polyvinyl pyrolidone (PVP) preferably having a molecular weight in the range of about 100,000 to 600,000, 2 to 5 weight percent polyvinyl alcohol (PVA) preferably having a molecular weight in the range of about 150,000 to 300,000, about 5 to about 40 weight percent humectant, about 3 to about 50 weight percent water, about 0 to about 50 weight percent of an ionic species. In a preferred aspect, the composition of the invention is utilized in an iontophoresis device to provide a hydrophilic gel matrix from which a drug is iontophoretically delivered. | |
