Basf Se Corporation

Iris Loescher

Torben Gaedt

Ekkehard Jahns

Gerhard Albrecht

Harald Grassl

Luc Nicoleau

Martin Winklbauer

Sophie Putzien

Klaus Seip

Michael Dietzsch

Christian Schmidtke

The present invention relates to a process for producing a redispersible dispersion powder, to the redispersible dispersion powder obtainable by this process, to an aqueous dispersion obtainable by step (1) of this process, and to a building material composition comprising the redispersible dispersion powder and/or the aqueous dispersion, to the use of the redispersible dispersion powder in a building material composition and to the use of the aqueous dispersion for production of a redispersible dispersion powder.

Process for producing an aqueous dispersion and redispersible dispersion powder produced therefrom

The invention relates to a process for modifying polymer particles of an aqueous polymer dispersion in which positively or negatively charged polymer particles are provided with an inorganic salt shell. The inorganic shell leads to an improved drying ability and storage stability of the latex and improves the storage stability of the resulting polymer powder. The obtained polymer powder exhibits an improved viscosity and faster skin-forming time in the final application and is therefore particularly useful in a building material composition.

Process for modifying polymer particles of an aqueous polymer dispersion, an aqueous polymer dispersion obtainable by said process, a redispersible polymer powder, and a composition comprising the redispersible polymer powder

Growing community of inventors

Trostberg, Germany

Iris Loescher