Patents by Inventor Frank Dierschke
Frank Dierschke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200407820Abstract: The present invention relates to the use of copolymers as binders for pelletizing metal containing ores such as iron containing ores. The copolymers comprise monomer units derived from at least one monomer C of formula (I).Type: ApplicationFiled: February 22, 2018Publication date: December 31, 2020Applicant: BASF SEInventors: Bjoern LANGLOTZ, Shane HOFF, Adrian Mauricio VILLANUEVA BERINDOAGUE, Alexej MICHAILOVSKI, Frank DIERSCHKE
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Patent number: 10392306Abstract: Proposed is a polycondensation product comprising as monomer components at least one aryl polyoxyalkylene ether, at least one vicinally disubstituted aromatic compound, at least one aldehyde and also optionally further aromatic compounds; processes for preparing same, and also use thereof as dispersant for aqueous suspensions of inorganic binders and as grinding assistant for inorganic binders.Type: GrantFiled: October 31, 2016Date of Patent: August 27, 2019Assignee: Construction Research & Technology GmbHInventors: Frank Dierschke, Torben Gädt, Uwe Gehrig, Michael Melchart, Mario Vierle, Peter Schwesig, Klaus Hartl, Madalina Andreea Stefan, Tatiana Mitkina, Maxim Pulkin
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Patent number: 10174144Abstract: The present invention relates to cationic copolymers, a process for the production of these cationic copolymers and the use of these cationic copolymers as dispersants for geopolymer binder systems. These cationic copolymers where the cationic charge is due to the presence of certain cyclic and/or polycationic groups are stable towards Hoffmann elimination that would otherwise occur at very high pH values. Moreover, the dispersing effect of cationic polymers can be further enhanced through the addition of polyvalent anions.Type: GrantFiled: August 5, 2014Date of Patent: January 8, 2019Assignee: Construction Research & Technology, GmbHInventors: Alexander Kraus, Tatiana Mitkina, Frank Dierschke, Maxim Pulkin, Luc Nicoleau
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Publication number: 20170044064Abstract: Proposed is a polycondensation product comprising as monomer components at least one aryl polyoxyalkylene ether, at least one vicinally disubstituted aromatic compound, at least one aldehyde and also optionally further aromatic compounds; processes for preparing same, and also use thereof as dispersant for aqueous suspensions of inorganic binders and as grinding assistant for inorganic binders.Type: ApplicationFiled: October 31, 2016Publication date: February 16, 2017Inventors: Frank DIERSCHKE, Torben GÄDT, Uwe GEHRIG, Michael MELCHART, Mario VIERLE, Peter SCHWESIG, Klaus HARTL, Madalina Andreea STEFAN, Tatiana MITKINA, Maxim PULKIN
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Publication number: 20160369024Abstract: The present invention relates to cationic copolymers, a process for the production of these cationic copolymers and the use of these cationic copolymers as dispersants for geopolymer binder systems. These cationic copolymers where the cationic charge is due to the presence of certain cyclic and/or polycationic groups are stable towards Hoffmann elimination that would otherwise occur at very high pH values. Moreover, the dispersing effect of cationic polymers can be further enhanced through the addition of polyvalent anions.Type: ApplicationFiled: August 5, 2014Publication date: December 22, 2016Applicant: Construction Research & Technology, GmbHInventors: Alexander KRAUS, Tatiana MITKINA, Frank DIERSCHKE, Maxim PULKIN, Luc NICOLEAU
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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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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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Patent number: 9156737Abstract: The invention relates to a process for the preparation of a phosphated polycondensate, at least one sulphonic acid being used as catalyst, and to the use of the phosphated polycondensate obtained as an admixture for aqueous suspensions of hydraulic and/or latently hydraulic binders.Type: GrantFiled: September 7, 2009Date of Patent: October 13, 2015Assignee: Construction Research & Technology GmbHInventors: Alexander Kraus, Frank Dierschke, Fabian Becker, Thomas Schuhbeck, Harald Grassl, Karin Groess
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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: 9006313Abstract: A polycondensation product based on aromatics and/or heteroaromatics and aldehydes, the polycondensate containing at least one structural unit (I) having a polyisobutylene side chain and an aromatic or heteroaromatic and at least one structural unit (II) having an ionizable functional group and an aromatic or heteroaromatic, structural unit (I) not being the same as structural unit (II) and the aldehyde used having no acid or ester functions. A process for the preparation and the use as an additive for hydraulic binders are disclosed.Type: GrantFiled: August 3, 2010Date of Patent: April 14, 2015Assignee: Construction Research & Technology GmbHInventors: Alexander Kraus, Frank Dierschke, Fabian Becker
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Publication number: 20150080500Abstract: Proposed is a polycondensation product comprising as monomer components at least one aryl polyoxyalkylene ether, at least one vicinally disubstituted aromatic compound, at least one aldehyde and also optionally further aromatic compounds; processes for preparing same, and also use thereof as dispersant for aqueous suspensions of inorganic binders and as grinding assistant for inorganic binders.Type: ApplicationFiled: April 3, 2013Publication date: March 19, 2015Inventors: Frank Dierschke, Torben Gädt, Uwe Gehrig, Michael Melchart, Mario Vierle, Peter Schwesig, Klaus Hartl, Madalina Andreea Stefan, Tatiana Mitkina, Maxim Pulkin
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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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Publication number: 20140066547Abstract: 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: ApplicationFiled: November 29, 2011Publication date: March 6, 2014Applicant: BASF CONSTRUCTION POLYMERS GMBHInventors: Michael Schinabeck, Frank Dierschke, Manfred Bichler, Silke Flakus, Stefan Friedrich
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Publication number: 20130330532Abstract: The subject of the present invention is a gypsum containing aqueous slurry containing a phosphate based polycondensate as sole agent with dispersing properties. With a phosphated polycondensate according to the invention as sole dispersing component an improved efficiency was found in comparison with the polycondensates known in the prior art. As additional favorable effect a significantly decreased retardation of the setting and hardening of the various construction compositions and especially of gypsum based slurries compared to other dispersants is to be observed, independently from the dosage of the dispersing component. This effect of the polycondensate component as well as an expedient influence on the pore structure surprisingly can be observed.Type: ApplicationFiled: October 7, 2011Publication date: December 12, 2013Applicant: BASF Construction Polymers GmbHInventors: Frank Dierschke, Klaus Prosiegel, Michael Schinabeck
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Patent number: 8349979Abstract: An admixture comprises an aqueous composition of a) a copolymeric dispersing component, b) an antifoaming agent component, c) a surfactant component, and d) water. The components may be a blend or physically or chemically attached and result in a stable liquid system that can be used as a dispersing agent for a calcium sulfate compound containing construction chemicals composition.Type: GrantFiled: August 12, 2008Date of Patent: January 8, 2013Assignee: BASF Construction Polymers GmbHInventors: Herbert Hommer, Frank Dierschke, Anja Trieflinger, Konrad Wutz, Manfred Bichler
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Publication number: 20130005861Abstract: Claimed is a formulation containing a) at least one component having dispersing properties and being selected from branched comb polymers having polyether side chains, a naphthalene sulphonate-formaldehyde condensate and a melamine sulphonate-formaldehyde condensate, and b) a polycondensation product. Typical representatives of component a) are polycarboxylate ether, polycarboxylate ester and uncharged copolymers. In addition to the main components a) and b) further additives such as anti-forming agents and tensides or polymers having a low charge, neutral polymers or polyvinyl alcohol can be comprised by the formulation that is suitable for controlling the flowability of aqueous suspensions of construction chemicals.Type: ApplicationFiled: September 12, 2012Publication date: January 3, 2013Inventors: Frank Dierschke, Alexander Kraus
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Patent number: 8344084Abstract: An admixture comprises an aqueous composition of a) a copolymeric dispersing component, b) an antifoaming agent component, c) a surfactant component, and d) water. The components may be a blend or physically or chemically attached and result in a stable liquid system that can be used as a dispersing agent for a calcium sulfate compound containing construction chemicals composition.Type: GrantFiled: September 22, 2010Date of Patent: January 1, 2013Assignee: BASF Construction Polymers GmbHInventors: Manfred Bichler, Herbert Hommer, Frank Dierschke, Anja Trieflinger, Konrad Wutz
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Publication number: 20120255464Abstract: 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: ApplicationFiled: March 27, 2012Publication date: October 11, 2012Inventors: Frank Dierschke, Michael Schinabeck
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Publication number: 20120208932Abstract: The invention relates to a polycondensation product based on aromatics and/or heteroaromatics and aldehydes, said polycondensate containing at least one structural unit (I) having a polyisobutylene side chain and an aromatic or heteroaromatic and at least one structural unit (II) having an ionizable functional group and an aromatic or heteroaromatic, structural unit (I) not being the same as structural unit (II) and the aldehyde used having no acid or ester functions. A process for the preparation and the use as an additive for hydraulic binders are disclosed.Type: ApplicationFiled: August 3, 2010Publication date: August 16, 2012Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBHInventors: Alexander Kraus, Frank Dierschke, Fabian Becker
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Publication number: 20110281975Abstract: The invention relates to a process for the preparation of a phosphated polycondensate, at least one sulphonic acid being used as catalyst, and to the use of the phosphated polycondensate obtained as an admixture for aqueous suspensions of hydraulic and/or latently hydraulic binders.Type: ApplicationFiled: September 7, 2009Publication date: November 17, 2011Inventors: Alexander Kraus, Frank Dierschke, Fabian Becker, Thomas Schuhbeck, Harald Grassl, Karin Groess