Process for impregnating a building material with an organosilicon compound

US5458923A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Thomas Goebel · Bad Kötzting, DE
• Rudolf Michel · Alzenau, DE
• Harald Alff · Alzenau, DE
• Josef Karl · Alzenau, DE

Key dates

• Filing date: Sep 13, 1994
• Grant date: Oct 17, 1995
• Expiry date: Sep 13, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/00112
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Aqueous emulsions are disclosed containing organosilicon compounds for the impregnation of inorganic materials, in particular building materials, containing alkoxysilanes and silane surfactants. The aqueous emulsions are storage stable and are adjusted to pH of from 3 to 5.5 just prior to use.