Abstract: 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.

Abstract: The present invention relates to the use of liquid aqueous polymer compositions containing an aqueous polymer latex and at least one inorganic particulate material for providing flexible roof coatings. The present invention also relates to a method for providing flexible roof coatings, which comprises applying said liquid aqueous polymer compositions to a flat roof. The liquid aqueous polymer composition contain, a. an aqueous polymer latex, where the polymer in the polymer latex is made of polymerized monomers M, where the polymerized ethylenically unsaturated monomers M comprise a combination of) at least two different monoethylenically unsaturated, non-ionic monomers M1, whose homopolymers have a theoretical glass transition temperature Tg(th) of at least 25° C. and ii) at least two different monoethylenically unsaturated, non-ionic monomers M2, whose homopolymers have a theoretical glass transition temperature Tg(th) of at less than 25° C.

Abstract: The invention relates to a process for preparing foamed polymer-modified bitumen compositions and to the use thereof for the production of asphalt. The invention also relates to foamed polymer-modified bitumen compositions obtainable by this process. Furthermore, the invention relates to a process for producing an asphalt composition and to the use thereof in road applications. The process for the preparation of the foamed polymer-modified bitumen composition comprises the following steps: i) Heating and pressurizing a bitumen to obtain a hot flowing bitumen stream, ii) Injecting under pressure an aqueous polymer dispersion into the hot flowing bitumen stream obtained in step i), to obtain a pressurized flowing mixed stream of the bitumen and the aqueous polymer dispersion; iii) Expanding the flowing mixed stream, in particular to atmospheric pressure, such that the water contained in the aqueous polymer dispersion vaporizes and foams the mixed stream to obtain a foamed polymer-modified bitumen.

Abstract: The present invention relates to the use of liquid aqueous polymer compositions containing an aqueous polymer latex and at least one inorganic particulate material for providing flexible roof coatings. The present invention also relates to a method for providing flexible roof coatings, which comprises applying said liquid aqueous polymer compositions to a flat roof. The liquid aqueous polymer composition contain, a an aqueous polymer latex, where the polymer in the polymer latex is made of polymerized monomers M, where the polymerized ethylenically unsaturated monomers M comprise a combination of) at least two different monoethylenically unsaturated, non-ionic monomers M1, whose homopolymers have a theoretical glass transition temperature Tg(th) of at least 25° C. and ii) at least two different monoethylenically unsaturated, non-ionic monomers M2, whose homopolymers have a theoretical glass transition temperature Tg(th) of at less than 25° C.

Abstract: The present invention relates to a hybrid foam, to a process for producing a hybrid foam and a hybrid foam obtainable by this process and to the use of the hybrid foam for adhesive bonding, filling and/or insulating.

Abstract: 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.

Abstract: The application relates to a moisture-variable protective layer having an sd value at a relative air humidity of 10% and a temperature of 12 to 35° C. at least a factor of 5.0 higher than the sd value at a relative air humidity of 90% and a temperature of 12 to 35° C., where the moisture-variable protective layer has been applied in liquid form by means of a coating composition, to a process for production thereof, to an insulation material and an insulation system comprising the moisture-variable protective layer, and to the use of a moisture-variable protective layer according to the invention in an insulation system which is free of support constructions and other heat bridges that penetrate the insulation layer, such as solid dowels or anchors, or as a coating on an insulation render.

Abstract: The present invention relates to a method for producing a gypsum-containing foamed prefabricated building material and to a gypsum-containing foamed prefabricated building material.

Abstract: The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.

Abstract: The present invention relates to a method for producing a gypsum-containing foamed prefabricated building material and to a gypsum-containing foamed prefabricated building material.

Abstract: The present invention provides the use of aqueous polymer dispersions comprising (a) at least two monomers M1 having a glass transition temperature ?25° C., (b) at least two monomers M2 having a glass transition temperature <25° C., and also further monomers M3, as binders in coating materials for improving the shade stability (color retention).

Abstract: The present invention relates to the use of aqueous hybrid dispersions, wherein (a) an aqueous polyurethane dispersion is prepared and (b) said polyurethane dispersion is used as raw material for the additional synthesis of a polyacrylate dispersion and the resulting hybrid dispersion is used as binder in filled coating materials, in particular, as binder for the flexible roof coating.

Abstract: The present invention relates to a method for producing a gypsum-containing foamed prefabricated building material and to a gypsum-containing foamed prefabricated building material.

Abstract: The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.

Abstract: The present invention relates to the use of aqueous multistage polymer dispersions obtainable by free-radically initiated aqueous emulsion polymerization, having a soft phase and a hard phase and having a hard-to-soft stage ratio of 25% to 95% by weight to 75% to 5% by weight, the glass transition temperature (Tg) of the soft phase, as first stage, being ?30 to 0° C. and that of the hard phase, as second stage, being 20 to 60° C., comprising at least one monomer of the general formula I in which the variables have the following definitions: n=0 to 2, R1, R2, R3=independently of one another hydrogen or methyl group, X?O or NH, Y?H, alkali metal or NH4, to coat metal sheets.

Abstract: The present invention relates to a method for producing a gypsum-containing foamed prefabricated building material and to a gypsum-containing foamed prefabricated building material.

Abstract: The present invention provides the use of aqueous polymer dispersions comprising (a) at least two monomers M1 having a glass transition temperature?25° C., (b) at least two monomers M2 having a glass transition temperature<25° C., and also further monomers M3, as binders in coating materials for improving the shade stability (color retention).

Abstract: The present invention relates to the use of aqueous multistage polymer dispersions obtainable by free-radically initiated aqueous emulsion polymerization, having a soft phase and a hard phase and having a hard-to-soft stage ratio of 25% to 95% by weight to 75% to 5% by weight, the glass transition temperature (Tg) of the soft phase, as first stage, being ?30 to 0° C. and that of the hard phase, as second stage, being 20 to 60° C., comprising at least one monomer of the general formula I in which the variables have the following definitions: n=0 to 2, R1, R2, R3=independently of one another hydrogen or methyl group, X?O or NH, Y?H, alkali metal or NH4, to coat metal sheets.

Abstract: The present invention relates to aqueous multistage polymer dispersions obtainable by free-radically initiated aqueous emulsion polymerization, having a soft phase and a hard phase, and a hard-to-soft stage ratio of 25% to 95% by weight to 75% to 5% by weight, the glass transition temperature (Tg) of the soft phase, as first stage, being ?30 to 0° C. and that of the hard phase, as second stage, being 20 to 60° C., comprising at least one monomer of the general formula I in which the variables have the following definitions: n=0 to 2, R1, R2, R3=independently of one another hydrogen or methyl group, X=O or NH, Y=H, alkali metal or NH4, to processes for preparing these aqueous polymer dispersions, and to the use thereof as binders in coatings, and also to coatings comprising the polymer dispersion of the invention.

Abstract: The present invention relates to an aqueous polymer dispersion whose dispersed addition polymer P comprises, copolymerized in free-radically polymerized form, at least one polar monomer having a water solubility of greater than 50 g/liter (measured at 20° C.), and obtainable by free-radically initiated aqueous emulsion polymerization, the polar monomer being metered to the reaction mixture during the polymerization process at a variable, i.e., nonconstant rate, for example in the sense of a rate gradient. The present invention further relates to processes for preparing these aqueous polymer dispersions, to their use as binders and/or in coatings, and also to coatings comprising the polymer dispersion of the invention.