Basf Se Corporation

Construction Research & Technology Gmbh

Skw Trostberg Aktiengesellschaft

Skw Bauchemie Gmbh

Manfred Schuhbeck

Stefan Friedrich

Reinhold J Leyrer

Marcus Guzmann

Gerhard Albrecht

Alfred Kern

Thomas Ostrowski

Michael Schinabeck

Roland Reichenbach-Klinke

Kati Schmidt

Thomas Pfeuffer

Yulia Fogel

Peter Gaeberlein

Andrea Orleans

Josef Weichmann

Uwe Holland

Christian Huber

Marcus Rösch

Björn Langlotz

Markus Rösch

Bjoern Langlotz

Michael Eberwein

Fabian Niedermair

Georg Daxenberger

Patrick Weiss

Pavlo Ilyin

Peter Gäberlein

Peter Gâberlein

Michaela Melzer

Josef Hoermansperger

Jaochim Dengler

Markus Roesch

The invention relates to a composition for inorganic binders, comprising at least one ketone-formaldehyde condensation product on the basis of a cyclic ketone and at least one anionic or nonionic surfactant and/or a thickener, and also to building material mixtures which comprise this composition, and to the use of the composition. The compositions improve the applications properties of the binder formulations.

Composition for inorganic binders

Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.

Hydrophobically associating copolymers

Additives for application in construction chemistry are proposed comprising an organic and/or inorganic core component A) with rheology-enhancing properties and a shell component B) applied to the same by virtue of physical and/or chemical interactions which acts as a coating. Component A) should be a of water-soluble and/or water-swellable and/or water-absorbable compound of the non-cellulose type with viscosity-enhancing properties in the final application. The shell component B) should preferably be a film-forming polymer which is able to release component A) during the application in construction chemistry in a retarded manner such as for example polyvinyl alcohol, polyvinyl acetate and polyethylene glycol. Component B) can be composed of several layers and comprises at least one reactive layer. The new additive is used as an additive with a time-delayed action in paints and also for timed control of the increase in viscosity or development of rheology in building material systems based on inorganic binders.

Additive with applications in construction chemistry

A polymeric composition consisting of water-soluble or water-swellable copolymers containing sulfo groups and nonionic polysaccharide derivatives, such as methylcellulose (MC), hydroxyethylcellulose (HEC), hydroxypropylcellulose (HPC), methylhydroxyethylcellulose (MHEC), methylhydroxypropylcellulose (MHPC) and welan gum or diutan gum, and the use thereof as an additive in aqueous construction systems based on hydraulic binders, such as cement, lime, gypsum or anhydrite, is described. The composition can also be used in water-based paint and coating systems. The composition according to the invention exhibits a synergistic improvement of the properties and, when used in relatively small amounts, constitutes highly effective water retention agents in such construction and paint systems, which also achieve outstanding air pore stability and tack.

Polymer composition and use of the same as an additive in aqueous construction systems and water-based paint and coating systems

The invention relates to water-soluble or water-swellable copolymers which contain sulfo groups and which are based on (meth)acrylamide-alkylsulfonic acids and (meth)acrylamide or N-vinyl compounds, and to their use as additives for aqueous construction materials systems or for water-based paint and coating systems. The inventive copolymers also represent water retention agents which are highly effective, even when used in relatively small quantities, and which are highly compatible in construction material and paint systems of this type.

Water-soluble or water-swellable, associatively thickening copolymers containing sulfo groups, method for producing the same and use thereof

Water-soluble or water-swellable copolymers containing sulfonic groups and based on (meth)acrylamide alkyl sulfonic acids and (meth)acrylamide or N-vinyl compounds are described, as well as their use as additives in aqueous building material mixes or for water-based painting and coating systems. The copolymers of the invention, even when used in relatively small quantities, serve as very effective and highly compatible water retention agents in such building material mixes and surface-coating systems.

Water-soluble or water-swellable copolymers containing sulfonic groups and methods of preparation

Water-soluble formaldehyde-free polycondensation products based on amino-s-triazines with at least two amino groups and glyoxylic acid, which contain as further component at least one amino compound and where the molar ratio of amino-s-triazine to glyoxylic acid to amino compound is 1:0.5 to 6.0:0.1 to 2.0. These polycondensation products are excellently suited as additives for aqueous suspensions of inorganic binders, especially cement, lime and gypsum. Building material mixtures which contain these polycondensation products remain workable for a considerably longer time and, in spite of this, also set more quickly.

Water-soluble formaldehyde-free polycondensation products based on

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Traunstein, Germany

Manfred Schuhbeck