Low-viscosity opacifier concentrates

US5888487A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Guido Baumoeller · Leichlingen, DE
• Armin Wadle · Erkrath, DE
• Achim Ansmann · Erkrath, DE
• Holger Tesmann · Düsseldorf, DE
• Thomas Foerster · Goldkronach, DE

Key dates

• Filing date: Oct 31, 1997
• Grant date: Mar 30, 1999
• Expiry date: Oct 31, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/667
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to opacifiers containing waxes and a mixture of two emulsifiers with different HLB values. The low-viscosity opacifier concentrates are based on waxes with a solids content of 40 to 60% by weight which are characterized that they contain at least one hydrophilic nonionic surfactant with an HLB value above 10 and at least one hydrophobic nonionic surfactant with ab HLB value below 10 as emulsifiers.