Process for hydrophobization of concrete

US10144671B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Uwe Gehrig · St. Georgen, DE
• Alexander Assmann · Seeon, DE
• Klaus SEIP · Mutterstadt, DE
• Martin Pichler · Parma, US
• Torben Gädt · Traunstein, DE

Key dates

• Filing date: Oct 23, 2015
• Grant date: Dec 4, 2018
• Expiry date: Oct 23, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/27
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for hydrophobization of concrete or mortar using an aqueous dispersion containing an alkylketene dimer, at least one emulsifier and a condensation product of phenol sulfonic acid and formaldehyde, naphthalene sulfonic acid and formaldehyde, or naphthalene sulfonic acid, phenol, formaldehyde and urea; and the concrete or mortar obtainable by the process. The process allows effective mass and surface hydrophobization of concrete.