Stable protective coatings for pharmaceutical dosage forms

US9254329B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Karl Kolter · Ludwigshafen am Rhein, DE
• Maximilian Angel · Mutterstadt, DE
• Thomas Breiner · Hemsbach, DE

Key dates

• Filing date: Oct 21, 2010
• Grant date: Feb 9, 2016
• Expiry date: Jan 20, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/262
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A coating material, containing a mixture of i) a polymer obtained by radical polymerization from a) N,N-diethylaminoethyl methacrylate, and b) at least one radically polymerizable compound, selected from esters of α,β-ethylenically unsaturated mono- and dicarboxylic acids with C1-C18 alkanols, as component A, ii) one or more antioxidants as component B, iii) one or more plasticizers as component C, and iv) other excipients as components D, wherein the total amount of the mixture of components A-D is 100 wt. %.