Aqueous dispersions of organosilicon compounds

US8907011B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Holger Rautschek · Großenhain, DE
• Hartmut Ackermann · Burghausen, DE
• Robert Schroeck · Altötting, DE

Key dates

• Filing date: Mar 30, 2012
• Grant date: Dec 9, 2014
• Expiry date: Mar 30, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/2241
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Stable aqueous organosilicon dispersions particularly useful for the hydrophobing of construction materials are prepared by first preparing a homogenous mixture of organopolysiloxanes and hydrophobic silica filler, and dispersing this mixture together with an alkylalkoxysilane bearing at least one C4 or greater alkyl group into water.