Transdermal pressure sensitive adhesive drug delivery system...

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 290/04 (2006.01) A61K 9/70 (2006.01) C08L 51/00 (2006.01) C09J 151/00 (2006.01)

Patent

CA 2276339

A graft copolymer pressure sensitive adhesive is provided comprissed of a backbone polymer having a polymeric moiety grafted thereto. The copolymer comprises at least one A monomer consisting of a monomeric (meth)acrylic acid ester of a non-tertiary alcohol, optionally at least one B monomer, optionally at least one polymeric graft moiety C having a Tg greater than 20 ~C, and a macromeric graft moiety D containing repeat hydrophilic units. The adhesive may be used with advantage in a transdermal drug delivery system in homogeneous admixture with a pharmacologically active agent.

L'invention concerne un adhésif par pression de copolymère greffé comprenant un squelette de polymère contenant une fraction polymère greffée sur ce dernier. Le copolymère comprend au moins un monomère A constitué par un ester d'acide (méth)acrylique monomère d'un alcool non tertiaire, éventuellement au moins un monomère B, éventuellement au moins une fraction polymère greffée C présentant une température T¿g? supérieure à 20 ·C et une fraction macromère greffée D contenant des motifs hydrophiles répétés. L'adhésif peut être avantageusement utilisé dans un système d'administration percutanée de médicament en mélange homogène avec un agent pharmacologiquement actif.

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