Emulsions

US5830483A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Kurt Seidel · Goldkronach, DE
• Christian Priebe · Wülfrath, DE
• Detlef Hollenberg · Hilden, DE

Key dates

• Filing date: Sep 12, 1996
• Grant date: Nov 3, 1998
• Expiry date: Sep 12, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/018
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

An oil-in-water emulsion comprising PA1 (A) from about 50 to about 99% by weight of water; PA1 (B) from about 1 to about 30% by weight of an oil phase; and PA1 (C) an emulsifying effective quantity of an emulsifier system consisting essentially of PA2 (i) at least one nonionic emulsifier of formula (I): EQU Z.sub.x R.sup.1 (R.sup.2 --CO).sub.y G.sub.z (I) PA2 in which Z is a sugar unit selected from the group consisting of pentoses and hexoses, x is a number of 1 to 5, R.sup.1 is a saturated alkyl radical containing 1 to 3 carbon atoms, R.sup.2 is a linear or branched alkyl radical or mono- or polyunsaturated alkenyl radical containing 8 to 22 carbon atoms, y is the number 1 or 2, G is a polyglycerol residue consisting of 2 to 10 glycerol units and z is the number 1 or 2, and PA2 (ii) at least one ionic emulsifier selected from the group consisting of cationic and anionic emulsifiers.