Patents Assigned to BASF Construction Solutions GmbH
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Patent number: 10464851Abstract: 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.Type: GrantFiled: April 25, 2014Date of Patent: November 5, 2019Assignee: BASF Construction Solutions GmbHInventors: Uwe Gehrig, Klaus Möller, Michael Schinabeck, Martin Pichler, Joachim Pakusch, Ekkehard Jahns
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Patent number: 10273188Abstract: The invention relates to a pulverulent composition which can be produced by bringing a powder which comprises at least one inorganic binder into contact with from 0.01 to 10% by weight, based on the total mass of the composition, of a liquid component comprising at least one copolymer which can be obtained by polymerization of a mixture of monomers comprising (I) at least one ethylenically unsaturated monomer which comprises at least one radical selected from the group consisting of carboxylic acid, carboxylic acid salt, carboxylic esters, carboxamide, carboxylic anhydride and carboximide and (II) at least one ethylenically unsaturated monomer having a polyalkylene oxide radical, where the liquid component contains at least 1% by weight of the at least one copolymer and at least 30% by weight of an organic solvent. Furthermore, a process for producing the liquid component, the use thereof and also specific copolymers are disclosed.Type: GrantFiled: September 25, 2012Date of Patent: April 30, 2019Assignee: BASF Construction Solutions GmbHInventors: Manfred Bichler, Michael Schinabeck, Norbert Steidl, Werner Strauss, Markus Maier, Markus Wilde
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Patent number: 9676666Abstract: The invention concerns a process for the preparation of a calcium silicate hydrate and ettringite containing hardening accelerator composition by reaction of a water-soluble calcium compound, silicate compound, aluminum compound and a sulfate compound, wherein the molar ratio of silicon to sulfate is from 2/1 to 30/1 and the reaction of the four compounds being carried out in the presence of an aqueous solution which contains a comb polymer suitable as a plasticizer for hydraulic binders. Also concerned are the use of said accelerators in building material mixtures, the building material mixtures containing said accelerators and a process for the preparation of a sprayable binder composition in which said accelerators are used.Type: GrantFiled: August 22, 2014Date of Patent: June 13, 2017Assignee: BASF Construction Solutions GMBHInventors: Christoph Hesse, Niklas Loges
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Patent number: 9416021Abstract: The invention relates to a process for producing calcium sulphate dihydrate by reacting a water-soluble calcium compound with a water-soluble sulphate compound in the presence of water and a polymer containing acid groups, wherein the polymer containing acid groups comprises specific polyether groups. Additionally disclosed are calcium sulphate dihydrate producible by the process according to the invention, and the use thereof for production of gypsum plasterboard.Type: GrantFiled: June 14, 2013Date of Patent: August 16, 2016Assignee: BASF Construction Solutions GmbHInventors: Niklas Loges, Uwe Gehrig, Michael Schinabeck, Frank Dierschke, Michael Bräu, Luc Nicoleau
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Publication number: 20160207831Abstract: The invention concerns a process for the preparation of a calcium silicate hydrate and ettringite containing hardening accelerator composition by reaction of a water-soluble calcium compound, silicate compound, aluminum compound and a sulfate compound, wherein the molar ratio of silicon to sulfate is from 2/1 to 30/1 and the reaction of the four compounds being carried out in the presence of an aqueous solution which contains a comb polymer suitable as a plasticizer for hydraulic binders. Also concerned are the use of said accelerators in building material mixtures, the building material mixtures containing said accelerators and a process for the preparation of a sprayable binder composition in which said accelerators are used.Type: ApplicationFiled: August 22, 2014Publication date: July 21, 2016Applicant: BASF Construction Solutions GMBHInventors: Christoph HESSE, Niklas LOGES
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Patent number: 9233875Abstract: The invention provides compositions containing a salt formed from an acid and from a base, wherein the acid is defined as a polycondensation product containing (I) at least one structural unit including an aromatic or heteroaromatic and a polyether side chain, and (II) at least one phosphated structural unit including an aromatic or heteroaromatic, and polyethyleneimine as base, wherein the molar mass of the polyethyleneimine is greater than 500 daltons. Likewise provided is a process for producing these compositions and building product mixtures comprising the invention compositions. The invention also provides for the use of the compositions as admixture agents, preferably as flow agents, for aqueous suspensions of binders based on calcium sulphate or for aqueous suspensions of (latently) hydraulic binders.Type: GrantFiled: March 27, 2012Date of Patent: January 12, 2016Assignee: BASF Construction Solutions GmbHInventors: Frank Dierschke, Michael Schinabeck
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Publication number: 20150114268Abstract: The invention relates to a process for producing calcium sulphate dihydrate by reacting a water-soluble calcium compound with a water-soluble sulphate compound in the presence of water and a polymer containing acid groups, wherein the polymer containing acid groups comprises specific polyether groups. Additionally disclosed are calcium sulphate dihydrate producible by the process according to the invention, and the use thereof for production of gypsum plasterboard.Type: ApplicationFiled: June 14, 2013Publication date: April 30, 2015Applicant: BASF Construction Solutions GmbHInventors: Niklas Loges, Uwe Gehrig, Michael Schinabeck, Frank Dierschke, Michael Brau, Luc Nicoleau
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Patent number: 9005759Abstract: A pulverulent and mineral oil-free composition which is present as binary system and contains as main constituents a) from 5 to 40% by weight of at least one fatty acid derivative and/or fatty alcohol derivative, b) from 0.5 to 10% by weight of at least one silicone oil and c) from 20 to 85% by weight of at least one support material, with the components a) and b) having been applied to the support material c), is proposed. Suitable components a) are, in particular, fatty alcohol alkoxylates comprising ethylene oxide units and propylene oxide units. Polydimethylsiloxanes are particularly suitable representatives of silicone oils b). The support material c) is selected from the group consisting of chalk, dolomite, shell limestone and silica. The composition has a bimodal particle size distribution in the range from 10 to 120 ?m. Such compositions are used, in particular, as antifoams for dry mortar applications.Type: GrantFiled: November 8, 2010Date of Patent: April 14, 2015Assignee: BASF Construction Solutions GmbHInventors: Markus Maier, Daniele Theissig, Klaus Prosiegel, Johann Goldbrunner
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Patent number: 8906986Abstract: Claimed is a cationic copolymer and also its use as an admixture agent for building product systems, especially based on calcium sulfate. The copolymers of the invention effectuate accelerated setting behavior in clay-containing as well as non-clay-containing gypsums and they enable uncurtailed water reduction performance by dispersant agents used at the same time with the copolymers. The clay fractions in the gypsum system are masked by the cationic copolymer, and so the building product mixture exhibits properties of a building product mixture not containing clay. The copolymers are used as a formulation and also together with retarders.Type: GrantFiled: November 29, 2011Date of Patent: December 9, 2014Assignee: BASF Construction Solutions GmbHInventors: Michael Schinabeck, Frank Dierschke, Manfred Bichler, Silke Flakus-Taube, Stefan Friedrich
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Patent number: 8802748Abstract: A graft polymer mixture comprising a grafting base based on brown coal and/or polyphenol is proposed, which has, as a graft component, a copolymer consisting of one or more ethylenically unsaturated monomers different from one another and one or more polyamides different from one another. Typical grafting bases are brown coal, brown coal coke, lignite and brown coal derivatives and tannins. Suitable graft components are in particular vinyl-containing components and styrenes, which may also be present in sulphonated form. Natural polyamides, such as, for example, casein, gelatin and collagen, are suitable polyamide components. These graft polymers having a preferred molar mass Mn>5000 g/mol are suitable as a mixture, in particular in construction chemistry applications, and in the development, exploitation and completion of underground mineral oil and natural gas deposits, and in deep wells, since they have excellent salt and temperature stabilities and are simultaneously water-soluble and/or biodegradable.Type: GrantFiled: April 25, 2008Date of Patent: August 12, 2014Assignee: BASF Construction Solutions GmbHInventors: Andrea Assmann, Roland Reichenbach-Klinke