Abstract: A connection terminal for connecting a conductor is formed as a direct plug-in terminal and includes a clamping spring arranged in a housing. The clamping spring includes a resilient clamping leg which can move into an open and locking position by pressing down an actuating device. The housing contains a conductor insertion channel for insertion of the conductor into a clamping point between the free end of the clamping leg and a busbar. The actuating device includes a pressing element and a pivoting element which interacts with the pressing element at least when the clamping point is being opened. At least one release device is provided for releasing the locking state of the clamping leg of the clamping spring. The release device is designed in such a way that the locking position can be released again by the action of the conductor on the release device when it is inserted, wherein the pivoting element acts on the pressing element and the pressing element acts on the clamping leg.

Abstract: A concrete-forming composition for producing a concrete article including: (a) at least one internal curing agent including a water-insoluble crosslinked cellulose ether wherein the water-insoluble crosslinked cellulose ether has a higher water adsorption capacity compared to typically used superabsorbent polymers and wherein the water-insoluble crosslinked cellulose ether can be successfully and efficiently used as a water-insoluble crosslinked cellulose either internal curing agent in concrete-forming compositions; and (b) a cementitious material; a process for making the above concrete-forming composition; and a concrete article made from the above concrete-forming composition with the objective of reducing autogenous shrinkage and crack formation in the resulting concrete article made from the above concrete-forming composition.

Abstract: A vibration damper may include a damper cylinder, a guiding closure that is held in the damper cylinder by a first clamping element, a piston rod that is axially guided in the guiding closure, and a piston rod functional group that is connected to the piston rod and disposed in the damper cylinder. At least one second clamping element may be connected to an internal wall of the damper cylinder, and a holding element may be disposed in the damper cylinder. The second clamping element can be disposed between the guiding closure and the holding element, and the holding element can be disposed between the second clamping element and the piston rod functional group. Further, the internal diameter of the second clamping element at least in portions is smaller than the external diameter of the holding element.

Abstract: A composition includes an esterified styrene/maleic anhydride copolymer, where the esterified styrene/maleic anhydride copolymer contains the following copolymerized components: (a) styrenic component; (b) a dicarboxylic acid ring-opened maleic anhydride; and (c) a half ester of a ring-opened maleic anhydride where the ester is a product of reacting maleic anhydride with poly(ethylene glycol) methyl ether having a number-average molecular weight in a range of 100 to 800 grams per mole, where the molar ratio of component (c) to component (b) is greater than 0.5 as determined by nuclear magnetic resonance spectroscopy, and the molar ratio of component (a) to the sum of components (b) and (c) is 1.0 or more and 2.0 or less as determined by nuclear magnetic resonance spectroscopy.

Abstract: The present invention provides substantially nonionic brush polymers having pendant polyether groups, preferably poly(alkylene glycol) groups, which polymers are useful as synthetic polymer substitutes for cellulose ethers in mortars and hydraulic binders. The brush polymers are preferably crosslinked, such as with ethylene glycol di(meth)acrylates.

Abstract: A vibration damper may include a damper cylinder, a guiding closure that is held in the damper cylinder by a first clamping element, a piston rod that is axially guided in the guiding closure, and a piston rod functional group that is connected to the piston rod and disposed in the damper cylinder. At least one second clamping element may be connected to an internal wall of the damper cylinder, and a holding element may be disposed in the damper cylinder. The second clamping element can be disposed between the guiding closure and the holding element, and the holding element can be disposed between the second clamping element and the piston rod functional group. Further, the internal diameter of the second clamping element at least in portions is smaller than the external diameter of the holding element.

Abstract: The present invention provides two-component compositions for making a waterproofing membrane comprising as component A) one or more acrylic aqueous emulsion copolymerization product (copolymer) of (i) from 60 to 89.9 wt. % of one or more nonionic (meth)acrylic monomers, preferably, butyl acrylate, methyl acrylate or ethylhexyl (meth)acrylate, (ii) from 10 to 40 wt. % of one or more vinyl aromatic monomers, (iii) from 0.1 to 2.0 wt. % of one or more amide functional acrylic monomer, and mixtures thereof with itaconic acid or methacrylic acid, wherein the emulsion copolymer has at least one residue of an ascorbic acid reducing agent and of t-butyl hydroperoxide and has less than 40 ppm or, preferably, less than 20 ppm, or more preferably, less than 10 ppm, of residual (meth)acrylamide.

Abstract: The present invention provides two-component compositions comprising a component A) one or more acrylic aqueous emulsion copolymer having a measured glass transition temperature (Tg) of from ?20 to 0° C. and which is the copolymerization product of (i) from 60 to 89.9 wt. % of one or more nonionic (meth)acrylic monomers, (ii) from 10 to 40 wt. % of one or more vinyl aromatic monomers, (iii) from 0.1 to 2.0 wt. % of one or more monomers chosen from itaconic acid, methacrylic acid, amides of a,?-unsaturated C3 to C6 carboxylic acids, and mixtures thereof, all wt. %s of monomers based on the total monomer solids, wherein the aqueous emulsion copolymer has at least one residue of an ascorbic acid reducing agent or is the copolymerization product of a monomer (iii) comprising itaconic acid, and, a separate component B) comprising a fast curing dry mix powder composition of a hydraulic cement and a high alumina content cement.

Abstract: The present invention provides compositions for use as stable additive concentrates, such as aqueous solutions or powders, in cement admixtures comprising i) one or more nonionic or substantially nonionic vinyl or acrylic brush polymers having pendant or side chain polyether groups and having a weight average molecular weight of from 140,000 to 50,000,000, ii) one or more aromatic cofactors containing one or more phenolic groups or, in combination, one or more aromatic groups with at least one sulfur acid group, preferably, a branched aromatic cofactor; and iii) one or more polycarboxylate ether copolymer water reducers containing carboxylic acid or salt groups and having polyether side chains and a weight average molecular weight of from 5,000 to 100,000.

Abstract: The present invention provides two-component compositions comprising a component A) one or more acrylic aqueous emulsion copolymer having a measured glass transition temperature (Tg) of from ?20 to 0° C. and which is the copolymerization product of (i) from 60 to 89.9 wt. % of one or more nonionic (meth)acrylic monomers, (ii) from 10 to 40 wt. % of one or more vinyl aromatic monomers, (iii) from 0.1 to 2.0 wt. % of one or more monomers chosen from itaconic acid, methacrylic acid, amides of a,?-unsaturated C3 to C6 carboxylic acids, and mixtures thereof, all wt. %s of monomers based on the total monomer solids, wherein the aqueous emulsion copolymer has at least one residue of an ascorbic acid reducing agent or is the copolymerization product of a monomer (iii) comprising itaconic acid, and, a separate component B) comprising a fast curing dry mix powder composition of a hydraulic cement and a high alumina content cement.

Abstract: The present invention provides substantially nonionic brush polymers having pendant polyether groups, preferably poly(alkylene glycol) groups, which polymers are useful as synthetic polymer substitutes for cellulose ethers in mortars and hydraulic binders. The brush polymers are preferably crosslinked, such as with ethylene glycol di(meth)acrylates.

Abstract: The present invention provides aqueous compositions that are stable after at least a 24 hour period comprising a polysaccharide viscosity modifying additive and more than 60 wt. %, based on the weight of total solids in the compositions of one or more polycarboxylate ether, the compositions comprising an acid chosen from an organic acid having 1 hydroxy group or less, a strong acid containing a single hydrogen, an ascorbic acid, and mixtures thereof, the compositions having a pH of less than the pH of the polycarboxylate ether itself, or from 1.0 to 6.0. The present invention enables stable concentrates of aqueous polycarboxylate ethers and polysaccharide viscosity modifying agents for use in hydraulic binder applications, the compositions having a total solids content of 10 wt. % to as high as 65 wt. %.

Abstract: A separator is indicated, which is arranged in a container having a circular or ellipsoidal cross section and having a container wall, for separating a light liquid-water mixture, for example oil-polluted water, comprising: a feed arranged on a first side of the container having a feed chicane, which directs the supplied mixture downward and divides it into two first flow parts that are substantially of equal size, an outlet having an outlet tube, a circular or ellipsoidal flow wall having an internal wall side and an external wall side, wherein the flow wall passes through at least half of a full circle, preferably at least three quarters of a full circle, and has an opening, which is facing a second side of the container opposite the feed, wherein the flow wall between the external wall side of the flow wall and the container wall forms two flow channels at two opposite sides of the container wall in each case from the feed to the second side of the container, wherein in the flow channels in each case one o

Abstract: A mortar contains cement, one or more than one mineral additive, superplasticizer, aggregates, a hydroxyethyl methyl cellulose and water, wherein the hydroxyethyl methyl cellulose is characterized by the sum of its hydroxyethyl molecular substitution and methyl degree of substitution is 1.90 or higher and 2.30 or lower and its viscosity as a 2 weight-percent aqueous solution that is below 30,000 milliPascals*seconds.

Abstract: A mortar contains cement, one or more than one mineral additive, superplasticizer, aggregates, a hydroxyethyl methyl cellulose and water, wherein the hydroxyethyl methyl cellulose is characterized by the sum of its hydroxyethyl molecular substitution and methyl degree of substitution is 1.90 or higher and 2.30 or lower and its viscosity as a 2 weight-percent aqueous solution that is below 30,000 milliPascals*seconds.

Abstract: The present invention relates to an extrudable hydraulic or non-hydraulic binding composition with improved properties with respect to crack formation and a method of making such a composition. The invention further relates to a method of decreasing or avoiding the formation of cracks of an extruded hydraulic or non-hydraulic binding composition and to a method of making an extruded article having less or no cracks. Furthermore, the invention is directed to a cellulose ether providing an extrudable hydraulic or non-hydraulic binding composition with improved properties with respect to crack formation.

Abstract: A separator is indicated, which is arranged in a container having a circular or ellipsoidal cross section and having a container wall, for separating a light liquid-water mixture, for example oil-polluted water, comprising: a feed arranged on a first side of the container having a feed chicane, which directs the supplied mixture downward and divides it into two first flow parts that are substantially of equal size, an outlet having an outlet tube, a circular or ellipsoidal flow wall having an internal wall side and an external wall side, wherein the flow wall passes through at least half of a full circle, preferably at least three quarters of a full circle, and has an opening, which is facing a second side of the container opposite the feed, wherein the flow wall between the external wall side of the flow wall and the container wall forms two flow channels at two opposite sides of the container wall in each case from the feed to the second side of the container, wherein in the flow channels in each case one o

Abstract: The present invention relates to an extrudable hydraulic or non-hydraulic binding composition with improved properties with respect to crack formation and a method of making such a composition. The invention further relates to a method of decreasing or avoiding the formation of cracks of an extruded hydraulic or non-hydraulic binding composition and to a method of making an extruded article having less or no cracks. Furthermore, the invention is directed to a cellulose ether providing an extrudable hydraulic or non-hydraulic binding composition with improved properties with respect to crack formation.