Process for the preparation of pharmaceutical and cosmetic dispersions

US4446127A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Manfred Bucheler · Overath, DE
• Bernd Klinksiek · Bensberg, DE
• Hans Gehringer · Cologne, DE
• Hildegard Schnoring · Wuppertal, DE

Key dates

• Filing date: Sep 23, 1982
• Grant date: May 1, 1984
• Expiry date: Sep 23, 2002

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q17/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing fine-particled, stable, pharmaceutical or cosmetic dispersions which comprises dispersing the entire inner phase in 5-40% by volume of outer phase, then adding the remainder of the outer phase, all under predetermined conditions.