Cementitious materials

US8445560B2 · kind B2 · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Jean-Paul Lecomte · Brussels, BE
• Andreas Stammer · Thiméon, BE
• Frederick Campeol · Épinois, BE
• Marc Thibaut · Chapelle-lez-Herlaimont, BE

Key dates

• Filing date: Nov 21, 2007
• Grant date: May 21, 2013
• Expiry date: Mar 4, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2995
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to cementitious materials, which exhibit a hydrophobic character, and to a process for making cementitious materials hydrophobic, and to a granulated additive for rendering cementitious material hydrophobic. An emulsifier for the organosilicon component is deposited on the particulate carrier together with the organosilicon component and the binder. The hydrophobing agent permits to impart instantaneous hydrophobicity to cementitious materials.