Low-viscosity opacifiers without anionic surface-active agents

US7176171B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Claus Nieendick · Krefeld, DE
• Mirella Nalborczyk · Goldkronach, DE
• Josef Koester · Goldkronach, DE
• Anke Eggers · Goldkronach, DE

Key dates

• Filing date: Jul 7, 2001
• Grant date: Feb 13, 2007
• Expiry date: Jun 14, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/90
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

An emulsifier mixture for use in a wax-based opacifier composition is comprised of: (a) an alkyl and/or alkenyl oligoglycoside; (b) a fatty acid partial glyceride and optionally (c) at least one amphoteric surfactant, with the proviso that the ratio by weight of (a) and optionally (c) to (b) is between 6:1 and 3:1 and wherein the composition is free from anionic surfactants.