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:
Jun. 20, 2000
Filed:
Oct. 28, 1997
Hock S Tan, Old Bridge, NJ (US);
Ingrid Zhang, Somerville, NJ (US);
Susan Lydzinski, Belle Mead, NJ (US);
Peter L Merkel, Long Valley, NJ (US);
Paul Foreman, Somerville, NJ (US);
Smita Shah, Edison, NJ (US);
Rama S Chandran, Bridgewater, NJ (US);
National Starch and Chemical Investment Holding Corporation, Wilmington, DE (US);
Abstract
Pressure sensitive adhesive compositions for use in transdermal drug delivery systems comprising an adhesive composition which is tolerant to plasticization by cutaneous penetration enhancers contained in the transdermal drug formulation are disclosed. Specifically, the pressure sensitive adhesive composition of the present invention comprises an acrylic copolymer prepared from (i) at least 40% by weight of th total monomer composition of alkyl acrylate monomers with a Tg of -90 to 0.degree. C., (ii) 0-15% by weight of the total monomer composition of monomers with a Tg of 0 to 250.degree. C., and (iii) 10-60% by weight of the total monomer composition of substituted acrylamides or methacrylamides having the structural formula: ##STR1## wherein R.sub.1 is H or CH.sub.3,