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Akzo Nobel N.v.

Akzo Nobel Chemicals International B.v.

Dominique Schaub

Thomas Aberle

Paul Emmenegger

Franck Vallée

(Andrei) Andrey P Pustovgar

Andrei P Pustovgar

The present invention relates to the use of a solid comprising at least one organosilane and a carrier material to hydrophobise mortars, wherein the organosilane has the formula RSi(OR')or RRSi(OR&#x2032;)wherein Rand Rare the same or different and are a linear or branched C- to C-alkyl and/or alkenyl group, OR&#x2032; is an acetoxy, a C- to C-alkoxy and/or a C- to C-methoxyalkoxy and/or ethoxyalkoxy group, and the carrier material is a solid at room temperature. The amount of cement in the final formulation is zero or less than 5 wt.-%, based on the total weight of the final formulation in the dry and uncured form. Claimed are also a powder comprising the silane and a carrier with the carrier being a water-soluble polymer, dry mortar formulations containing no or less than 5 wt.-% cement, based on the dry weight of the uncured mortar formulation, as well as processes to manufacture the formulations and/or compounds.

Powder to hydrophobise and its use

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Hinwil, Switzerland

Dominique Schaub