Drug flux enhancer-tolerant pressure sensitive adhesive composition
Patent 5573778 Issued on November 12, 1996. Estimated Expiration Date: 
March 17, 2015. 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.
March 17, 2015. 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 3786116 3832423 3842146 3862077 3879494 3928255 Chemically joined phase separated thermoplastic graft copolymers Chemically joined, phase separated self-cured hydrophilic thermoplastic graft copolymers and their preparation Acrylic hot melt pressure sensitive adhesive coated sheet material Acrylate copolymer pressure-sensitive adhesive composition and sheet materials coated therewith InventorsApplicationNo. 405872 filed on 03/17/1995US Classes:424/448, Pressure sensitive adhesive means424/449Transdermal or percutaneousExaminersPrimary: Phelan, D. GabrielleAttorney, Agent or FirmInternational ClassA61F 013/02AbstractA drug flux enhancer-tolerant pressure sensitive adhesive composition is provided comprised of a mixture of (1) a percutaneous penetration enhancer to increase permeability of skin to transdermally administered pharmacologically active agents and (2) a macromer reinforced base polymer, said base polymer comprising a phase separated graft copolymer composition comprised of copolymerized monomers A and B to form a backbone polymer having polymeric moieties grafted thereto, wherein monomer A is a monomeric acrylic or methacrylic ester of a non-tertiary alcohol having from 1 to 14 carbon atoms, with the average number of carbon atoms being in the range of about 4 to 12, and a monomer B is a polar monomer which is copolymerizable with monomer A.Other References
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