Basf Se Corporation

Klaus Seip

Arno Lange

Ekkehard Jahns

Rainer Papp

Torben Gädt

Christoph Hesse

Martin Winklbauer

Alexander Centner

Marco Schmidt

Torben Gaedt

Ulf Dietrich

Uwe Gehrig

Alexander Assmann

Martin Pichler

Pavlo Ilyin

Iris Loescher

Daniel Sauter

Christian Schmidtke

Karsten Kuhne

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

A two-component system for forming adhesive bonds or for chemical anchoring comprises a curable binder component A and an activator component B. The component A comprises: A-1) an inhibited hydraulic binder selected from among calcium aluminate cement, calcium sulfoaluminate cement and mixtures thereof; the component B comprises: B-1) a curing activator. At least one of the components A and/or B comprises: V-1) an organic binder; and V-2) a filler having a Mohs hardness of at least 5. The system is an aqueous system which is unproblematical from a health point of view. It is easy to process and quickly attains high strengths.

Two-component system for formation of cohesive bonds or for chemical anchoring

The present invention relates to primer compositions in powder form that comprise a dispersion powder based on an acrylate polymer having a glass transition temperature in the range from &#x2212;50&#xb0; C. to +30&#xb0; C. and cement. The compositions of the invention are notable for good water barrier effect, good dust-binding capacity, and a low tendency toward salt efflorescence. The compositions find use in the priming of masonry, concrete, rendered surfaces, abraded render, plaster surfaces, wall blocks, wood, and ceramic tiles. They can also be used as adhesion promoters with nonabsorbent substrates such as glazed ceramic or glass tiles, metal surfaces, or surfaces of plastic.

Pulverulent primer composition

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.

Process for hydrophobization of concrete

The present invention relates to the use of isoalkane mixtures for reducing or minimizing the dust emission during the handling of pulverulent construction chemistry products, a process for the preparation of the pulverulent construction chemistry products, and hydraulically setting materials comprising the isoalkane mixtures according to the invention.

Use of isoalkane mixtures for dedusting construction chemistry products

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Mutterstadt, Germany

Klaus Seip