Release agents for hydraulic binders

US5709739A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Leonhard Wittich · Rahden, DE
• Stephan Heck · Pulheim, DE
• Lothar Friesenhagen · Düsseldorf, DE
• Guenther Demmering · Solingen, DE
• Horst-Dieter Komp · Langenfeld, DE
• Michael Koehler · Mettmann, DE
• Ingo Wegener · Goldkronach, DE
• Hans-Juergen Sladek · Krefeld, DE

Key dates

• Filing date: Aug 16, 1996
• Grant date: Jan 20, 1998
• Expiry date: Aug 16, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2070/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A composition useful as a release agent for hydraulic binders is provided. The composition comprises water, an oil component comprising a water-immiscible monohydric alcohol component liquid at temperatures of 5.degree. to 15.degree. C. and selected from the group consisting of unsaturated fatty alcohols containing 12 to 22 carbon atoms and having iodine values of 40 to 170, Guerbet alcohols containing 16 to 28 carbon atoms, oxoalcohols containing 8 to 15 carbon atoms, and saturated alcohols containing 6 to 10 carbon atoms, and 0.5 to 5% by weight of an emulsifier, based on the oil component. The release agent is particularly useful for the treatment of formwork material in concrete construction.