Wacker Chemie Ag

Klaus Bonin

Jürgen Bezler

Harald Zeh

Hans-Peter Weitzel

Manfred Selig

Klas Sorger

Udo Kotschi

Kurt Reitmajer

Saulat Aijaz Khan

Lada Bemert

Richard Zhang

A powder paint composition. The powder paint composition contains (a) at least one polymer powder which can be re-dispersed in water, (b) pigment and filler, and optionally (c) which may be one or more adjuvants and/or may be one or more hydraulic binders. The at least one polymer powder which can be re-dispersed in water contains a polyvinyl alcohol-stabilized copolymer that is based on (a1) a wt % of a vinyl acetate, (a2) a wt % of ethylene and optionally (a3) and/or (a4) wherein (a3) is vinyl esters of long-chain, optionally branched Cto Ccarboxylic acids and (a4) is further ethylenically unsaturated comonomers that are co-polymerizable therewith.

Powder paint composition which can be redispersed in water

An additive pack which comprises a water-soluble capsule containing a water-dispersible polymer powder (dispersion powder) is used to prepare aqueous construction materials such as cements and mortars on site, while offering set properties equivalent or superior to ready to mix dry mix formulations.

Additive pack

The invention relates to fiber-containing concrete compositions containing hydraulically setting binders, fillers, one or more fibers, and possibly other additives or admixtures, characterized in that one or more vinylester-ethylene copolymers are contained as additional components.

Fiber-containing concrete compositions

The invention relates to aqueous preparations of polymer-modified setting accelerators, said preparations being characterized in that at least one setting accelerator and at least one cationically stabilized polymer are contained therein.

Aqueous preparations of polymer-modified setting accelerators, and use thereof in the construction industry

The invention relates to methods for applying wet concrete mixtures containing cement, fillers, water, one or more polymers, and possibly further admixtures or additives according to the wet-mix shotcrete method, characterized in that the wet concrete mixtures, which contain at least one polymer based on one or more vinyl esters of unbranched or branched alkyl carboxylic acids having 1 to 15 C atoms and possibly one or more further ethylenically unsaturated monomers, are put into a concrete spraying machine and are applied to a subsurface by means of the wet-mix shotcrete method with a layer thickness of &#x2267;3 cm.

Methods for applying polymer-modified wet concrete mixtures

The invention relates to a method for producing solid materials having an air content of &#x2266;16 vol. % in relation to the total volume of solid materials, characterised in that hydraulically setting coating agents containing at least one cationic protective colloid are applied to an undersurface by means of mechanical methods using compressed air with air quantity factors of up to 100 or by manual methods.

Production of solid materials based on hydraulically setting coating agents

The invention relates to methods for producing fiber-reinforced building-material coatings in that building-material coating agents containing mineral binders, optionally fillers, and optionally additives, are sprayed by means of a spray nozzle to form a building-material coating agent stream and one or more fibers are introduced into the building-material coating agent stream, and the fiber-modified building-material coating agent stream thus obtained then strikes a substrate, characterized in that the building-material coating agents additionally contain one or more polymers based on ethylenically unsaturated monomers.

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Burghausen, Germany

Klaus Bonin