Aqueous silicone emulsion for imparting water repellency

US8354480B2 · kind B2 · utility

Assignees

• Dow Corning Corporation · US
• Dow Corning Australia Pty Ltd · AU

Inventors

• Anthony S. McAuliffe · Forbes, AU
• Marie-Jose Sarrazin · Waterloo, BE
• David Brian Selley · Midland, US
• Andreas Stammer · Thiméon, BE

Key dates

• Filing date: Apr 16, 2008
• Grant date: Jan 15, 2013
• Expiry date: Apr 16, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5419
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Aqueous silicone emulsions are disclosed containing a phenyl silsesquioxane resin, an alkoxysilane, a hydroxy terminated polydialkylsiloxane, and an emulsion of an aminofunctional polysiloxane. The silicone emulsions are useful for imparting water repellency to various surfaces, and in particular, inorganic building surfaces.