Abstract: The invention relates to an additive for hydraulically setting systems based on modified polycarboxylates and water-soluble ethers of high polymeric polysaccharides, optionally containing further standard additives, characterized by a content of a) a water-soluble ether of cellulose or a cellulose-like compound with a viscosity of at least approximately 1,000 mPas, particularly at least approximately 2,000 mPas, measured as a 2% aqueous solution with a Brookfield viscosimeter at 20° C. and 20 rpm and b) a polycarboxylate, whose main chain is linked by means of ester, ether, imide and/or amide groups with polyethylene oxide-containing side chains. The invention also relates to hydraulic mixtures having a content of the above additive and the use thereof.

Abstract: The present invention pertains to a rheological additive to replace casein in minerally setting building material compounds, characterized in that the rheological additive contains at least two different dispersing agents and at least one stabilizer, or at least one dispersing agent and at least two different stabilizers, wherein said at least one dispersing agent is or said at least two dispersing agents are selected from the group of lignin sulfonate, polycarboxylate, polycarboxylate ether, melamine formaldehyde sulfonate, alkylphenol glycol ether and/or naphthaline sulfonates, and said at least one stabilizer is or said at least two stabilizers are selected from the group of modified or unmodified, fully or partially hydrolyzed polyvinyl alcohol, polyvinyl acetal, polyvinyl pyrrolidone, polyalkylene glycol, polyalkylene oxide, agar-agar, carob seed grain, pectin, poly(meth)acrylate and/or (meth)acrylate thickeners, poly(meth)acrylamides, polyurethanes, associative thickeners, gelatine and/or soy protein.

Abstract: A hydraulically setting mortar composition containing at least one hydraulically setting component, at least one lightweight filler, at least one cellulose ether, at least one setting retarder and optionally further additional additives, particularly fillers and/or dispersion powders. In addition, a premix for producing a hydraulically setting mortar composition is described containing at least one lightweight filler and at least one cellulose ether and/or a setting retarder. As a result of the inventive ratio of these components, it is possible with much lower lightweight filler contents to obtain more cost effective mortar formulations and/or improved use characteristics, such as e.g. increased adhesive tensile strengths and/or an increased open time. The hydraulically setting mortar composition can be used in gypsum, gypsum-lime, lime-cement, cement and/or thermal plasters, tile adhesives, masonry mortars, full heat protection mortars, surfacers, self-levelling floor materials or repair mortars.

Abstract: The invention relates to an additive for hydraulically setting systems based on modified polycarboxylates and water-soluble ethers of high polymeric polysaccharides, optionally containing further standard additives, characterized by a content of a) a water-soluble ether of cellulose or a cellulose-like compound with a viscosity of at least approximately 1,000 mPas, particularly at least approximately 2,000 mPas, measured as a 2% aqueous solution with a Brookfield viscosimeter at 20° C. and 20 rpm and b) a polycarboxylate, whose main chain is linked by means of ester, ether, imide and/or amide groups with polyethylene oxide-containing side chains. The invention also relates to hydraulic mixtures having a content of the above additive and the use thereof.

Abstract: A hydraulically setting mortar composition containing at least one hydraulically setting component, at least one lightweight filler, at least one cellulose ether, at least one setting retarder and optionally further additional additives, particularly fillers and/or dispersion powders. In addition, a premix for producing a hydraulically setting mortar composition is described containing at least one lightweight filler and at least one cellulose ether and/or a setting retarder. As a result of the inventive ratio of these components, it is possible with much lower lightweight filler contents to obtain more cost effective mortar formulations and/or improved use characteristics, such as e.g. increased adhesive tensile strengths and/or an increased open time. The hydraulically setting mortar composition can be used in gypsum, gypsum-lime, lime-cement, cement and/or thermal plasters, tile adhesives, masonry mortars, full heat protection mortars, surfacers, self-levelling floor materials or repair mortars.

Abstract: The invention relates to an additive for hydraulically setting systems based on modified polycarboxylates and water-soluble ethers of high polymeric polysaccharides, optionally containing further standard additives, characterized by a content of a) a water-soluble ether of cellulose or a cellulose-like compound with a viscosity of at least approximately 1,000 mPas, particularly at least approximately 2,000 mPas, measured as a 2% aqueous solution with a Brookfield viscosimeter at 20° C. and 20 rpm and b) a polycarboxylate, whose main chain is linked by means of ester, ether, imide and/or amide groups with polyethylene oxide-containing side chains. The invention also relates to hydraulic mixtures having a content of the above additive and the use thereof.