Use of (meth)acrylic acid copolymers to increase the permeability of mucous membranes

US6555124B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Karl Kolter · Ludwigshafen am Rhein, DE
• Thomas Subkowski · Schriesheim, DE
• Martin Raditsch · Eppelheim, DE
• Volker Schehlmann · Schifferstadt, DE

Key dates

• Filing date: Feb 1, 1999
• Grant date: Apr 29, 2003
• Expiry date: Feb 1, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K45/06
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

(Meth)acrylic acid copolymers are used to increase mucosal permeability, comonomers present being (meth)acrylic esters and/or other monomers capable of free-radical polymerization, and the (meth)acrylic acid:comonomer molar ratio varying from 99:1 to 1:99.