Nanoparticulate core shell systems and the use thereof in pharmaceutical and cosmetic preparation

US7687071B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Robert Heger · Heidelberg, DE
• Helmut Auweter · Schifferstadt, DE
• Jorg Breitenbach · Mannheim, DE
• Heribert Bohn · Wattenheim, DE

Key dates

• Filing date: Dec 7, 1999
• Grant date: Mar 30, 2010
• Expiry date: Nov 1, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q7/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Nanoparticulate preparations of pharmaceutical and cosmetic active substances with a core-shell structure, whereby the active substance is present in an X-ray amorphous form, together with a polymer matrix and the shell consists of a stabilizing sheathing matrix.