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Patent

Polymeric Adhesive Matrix with Salified Carboxylic Groups for Transdermal Use


Application Date:
May 11, 2017
USPTO Patent:
US 15414829
Abstract:

Polymeric matrices for the controlled release of medicaments for the topical transdermal use comprising copolymers of acrylic and/or methacrylic acid or esters thereof having a Tg lower than 0° C., whose free carbox...

Assignee:
Inventors:
Paola Stefanelli, Milano (IT)
Alberto Scarsetto, Cinisello Balsamo (IT)
Maurizio Di Grigoli, Veduggio con Colzano (IT)
Pierbruno Romelli, Rho (IT)
International Classification:
A61K 9/70 (20170511); A61K 31/192 (20170511); A61K 31/196 (20170511)

Claims

What is claimed is:

1. Topical transdermal controlled release systems of medicaments consisting of: a polymeric matrix for said controlled release of said medicaments, said polymeric matrix comprising copolymers of acrylic or metacrylic acid and/or esters thereof having a Tg lower than 0° C.,wherein the free carboxylic groups are salified with stoichiometric amounts of compatible...

Description

This Application is a continuation of U.S. application Ser. No. 14/085,334 filed on Nov. 20, 2013, which is a continuation of U.S. application Ser. No. 11/659,379 filed on Aug. 4, 2008, which is a U.S. National Stage of PCT PCT/EP2005/007293 filed Jul. 6, 2005, which claims priority to and the...

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