Hydrophobing additive

US7972424B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Thomas Bastelberger · Emmerting, DE
• Reinhard Härzschel · Burghausen, DE
• Franz Jodlbauer · Marktl, DE

Key dates

• Filing date: May 13, 2004
• Grant date: Jul 5, 2011
• Expiry date: Aug 3, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2103/65
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Hydrophobicizing agents which are easily admixed with construction chemical products are prepared by providing a solution of a protective colloid and adding thereto a fatty acid compound sensitive to high pH environments, optionally, a hydrophobicizing organosilicon compound, and drying the resulting aqueous mixture.