Akzo Nobel N.v.

Evonik Degussa Gmbh

Akzo Nobel Chemicals International B.v.

Evonik Operations Gmbh

Celanese Switzerland Ag

Ulf Kehrer

Burkhard Standke

Hongli Willimann

Philipp Albert

Manuel Friedel

Spomenko Ljesic

Sabine Giessler-Blank

Hans Wicki

Jakob Wolfisberg

The present invention relates to a curable mixture suitable for obtaining 'easy-to-clean' properties in the cured mixture, comprising at least one mineral binder, a powder comprising at least one fluoroorganyl-substituted silicon compound encapsulated in a water-soluble polymer, the amount of the silicon compound being 0.001% to 8% by weight, based on the present mixture, and optionally further adjuvants, and also to a process for preparing the mixture and to the use thereof. The invention further relates to a water-redispersible powder and also to a corresponding intermediate for use in the curable mixture in order to obtain 'easy-to-clean' properties in the cured mixture. Also claimed, furthermore, is a process for preparing the powder, and the use thereof.

Curable mixture

The present invention pertains to a process for the preparation of aqueous dispersions which are stabilized with a water-insoluble stabilizing colloid, characterized in that

Method for producing dispersions and use thereof

The invention relates to an aqueous dispersion and dispersion powder composition for highly flexible, waterproof, hydraulically binding tile adhesives having an extended open time, and containing an emulsion polymer (A) having a glass transition temperature (T) of approximately 10&#xb0; C. to 80&#xb0; C., and an emulsion polymer (B) having a glass transition temperature (T) of approximately &#x2212;60&#xb0; C. to +20&#xb0; C. The difference of the glass transition temperatures (T) of the emulsion polymers (A and B) is at least approximately 5&#xb0; C. The proportion of vinyl acetate monomer units is 0 to 70 mol-% and the minimum film forming temperature according to DIN 53787 of the 50% aqueous dispersion composition is approximately 15&#xb0; C. or less, and the monomers, stabilization systems and optionally the additional additives of the dispersion and/or dispersion powder composition are selected such that a good cement compatibility is guaranteed. Due to the inventive dispersion and dispersion powder composition, tile adhesive can be produced in an economical manner which meets the requirements of C2S2- and C2ES2-norm according to EN12004.

Dispersion compositions for tile adhesives

The present invention relates to the use of a mixture that is dispersible, redispersible, or soluble in water, or an aqueous composition for protecting substrates from corrosion, wherein the mixture, or the composition, is based on at least one organic polymer that is soluble in water and at least one organosilicon compound. The invention further relates to a mixture that is dispersible, redispersible, or soluble in water, based on at least one organic polymer that is soluble in water and at least one organosilicon compound having at least one Si&#x2014;O&#x2014;Si bond and/or at least one Si&#x2014;Si bond, wherein either the content of the organic polymer soluble in water, based on the sum of the organic polymer soluble in water and of the organosilicon compound, is between about 40 and about 80 wt.-%, or the organosilicon compound is an oligomer mixture of alkyl alkoxy siloxanes, wherein the oligomer mixture contains 50 to 100 wt.-% of alkyl alkoxy siloxanes, and the same have a degree of oligomerization of 2 to 20. The invention further provides a method for the production of mixtures according to the invention and the use thereof.

Mixture containing organosilicon compound and use thereof

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Hattersheim, Germany

Ulf Kehrer