Patents by Inventor Dennis Lösch
Dennis Lösch 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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Patent number: 11725102Abstract: Process of providing polyacrylamides to a site-of-use comprising at least the steps of mixing a polyacrylamide powder at a manufacturing site with an aqueous liquid, thereby obtaining a homogeneous aqueous polyacrylamide concentrate, transporting said concentrate in a transport unit from the manufacturing site to the site-of-use, and removing the homogeneous aqueous concentrate from the transport unit at the site-of-use. Process of treating subterranean, oil and/or gas bearing formations by injecting an aqueous treatment fluid into at least one wellbore, wherein the aqueous treatment fluid is manufactured by mixing at least an aqueous base fluid with said homogeneous aqueous polyacrylamide concentrate at the site-of-use.Type: GrantFiled: October 17, 2019Date of Patent: August 15, 2023Assignee: BASF SEInventors: Faissal-Ali El-Toufaili, Dennis Loesch, Anna-Corina Schmidt, Tobias Joachim Zimmermann, Markus Ostermayr, Jack F. Tinsley, Brent Busby, Daniel Barrera-Medrano
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Publication number: 20230174685Abstract: Process for producing aqueous compositions of water-soluble polymers from aqueous polymer gels by comminuting and mixing the aqueous polymer gel with an aqueous liquid by means of a comminution unit comprising a flow-chamber, a sheet-like molding tool and rotating cutting means, wherein a stream of an aqueous liquid flows through the flow chamber, aqueous polymer gel is pressed through the sheet-like molding tool, cutting the thus formed gel strands into slices, dispersing them in the aqueous liquid and homogenizing the thus obtained mixture.Type: ApplicationFiled: April 26, 2021Publication date: June 8, 2023Inventors: Dennis LOESCH, Esther Matyka LARYEA, Anna-Corina SCHMIDT, Faissal-Ali EL-TOUFAILI, Daniel BARRERA-MEDRANO, Markus OSTERMAYR
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Patent number: 11643491Abstract: Process for producing aqueous polyacrylamide concentrates by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel, comminuting said aqueous polyacrylamide gel and mixing it with an aqueous liquid, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide concentrate hold in a suitable transport unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide, wherein the units of the plant are located at two different locations A and B.Type: GrantFiled: October 17, 2019Date of Patent: May 9, 2023Assignee: BASF SEInventors: Faissal-Ali El-Toufaili, Dennis Loesch, Anna-Corina Schmidt, Tobias Joachim Zimmermann, Markus Ostermayr, Jack F. Tinsley, Brent Busby
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Publication number: 20230128528Abstract: Process and a plant for making polyacrylamides by polymerizing an aqueous solution comprising at least acrylamide and acrylic acid or salts thereof in the presence of initiators for radical polymerization under adiabatic conditions, wherein acrylamide and acrylic acid are stored at the site of the plant as dilute aqueous solutions in pressure-resistant tanks and also the monomer mixing vessel and the polymerization vessel are pressure-resistant. The combination of using diluted monomer solutions and pressure-resistant tanks ensures that even in case of an unintended and uncontrolled polymerization, said vessels don't burst and there is no spill out of the plant to the environment.Type: ApplicationFiled: March 18, 2021Publication date: April 27, 2023Inventors: Faissal-Ali EL-TOUFAILI, Daniel BARRERA-MEDRANO, Dennis LOESCH, Anna-Corina SCHMIDT, Kristian Alexander GILL, Tobias Joachim ZIMMERMANN
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Patent number: 11634516Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.Type: GrantFiled: October 18, 2018Date of Patent: April 25, 2023Assignee: BASF SEInventors: Dennis Loesch, Tobias Joachim Zimmermann, Hazel Sprafke, Dirk Meckelnburg, Markus Ostermayr, Faissal-Ali El-Toufaili
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Patent number: 11634515Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. The transportable polymerization unit comprises a cylindrical upper part, a conical part at its lower end, feeds for the aqueous monomer solution, a closable bottom opening, and means allowing to deploy the polymerization unit in a vertical manner.Type: GrantFiled: October 18, 2018Date of Patent: April 25, 2023Assignee: BASF SEInventors: Hazel Sprafke, Tobias Joachim Zimmermann, Dirk Meckelnburg, Dennis Loesch, Markus Ostermayr, Faissal-Ali El-Toufaili
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Patent number: 11629205Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the process is carried out in a modular, relocatable plant. The plant preferably is deployed at a location at which aqueous polyacrylamide solutions are used, for example on an oilfield or in a mining area.Type: GrantFiled: October 18, 2018Date of Patent: April 18, 2023Assignee: BASF SEInventors: Hazel Sprafke, Markus Ostermayr, Tobias Joachim Zimmermann, Dirk Meckelnburg, Dennis Loesch, Faissal-Ali El-Toufaili
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Patent number: 11608468Abstract: Process of fracturing subterranean, oil-and/or gas-bearing formations by injecting an aqueous fracturing fluid into a wellbore at a rate and pressure sufficient to penetrate into the formation, and to initiate or extend fractures in the formation, wherein the aqueous fracturing fluid is obtained by mixing at least an aqueous base fluid and an aqueous polyacrylamide concentrate having a concentration of 3.1 to 14.9% by weight of polyacrylamides, relating to the total of all components of the aqueous polyacrylamide concentrate, and wherein at least a part of the aqueous fracturing fluid injected additionally comprises a proppant.Type: GrantFiled: October 17, 2019Date of Patent: March 21, 2023Assignee: BASF SEInventors: Faissal-Ali El-Toufaili, Dennis Loesch, Anna-Corina Schmidt, Tobias Joachim Zimmermann, Markus Ostermayr, Jack F. Tinsley, Brent Busby
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Publication number: 20210388256Abstract: Process of fracturing subterranean, oil- and/or gas-bearing formations by injecting an aqueous fracturing fluid into a wellbore at a rate and pressure sufficient to penetrate into the formation, and to initiate or extend fractures in the formation, wherein the aqueous fracturing fluid is obtained by mixing at least an aqueous base fluid and an aqueous polyacrylamide concentrate having a concentration of 3.1 to 14.9% by weight of polyacrylamides, relating to the total of all components of the aqueous polyacrylamide concentrate, and wherein at least a part of the aqueous fracturing fluid injected additionally comprises a proppant.Type: ApplicationFiled: October 17, 2019Publication date: December 16, 2021Inventors: Faissal-Ali EL-Toufailli, Dennis Loesch, Anna-Corina Schmidt, Tobias Joachim Zimmermann, Markus Ostermayr, Jack F. Tinsley, Brent Busby
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Publication number: 20210347977Abstract: Process of providing polyacrylamides to a site-of-use comprising at least the steps of mixing a polyacrylamide powder at a manufacturing site with an aqueous liquid, thereby obtaining a homogeneous aqueous polyacrylamide concentrate, transporting said concentrate in a transport unit from the manufacturing site to the site-of-use, and removing the homogeneous aqueous concentrate from the transport unit at the site-of-use. Process of treating subterranean, oil and/or gas bearing formations by injecting an aqueous treatment fluid into at least one wellbore, wherein the aqueous treatment fluid is manufactured by mixing at least an aqueous base fluid with said homogeneous aqueous polyacrylamide concentrate at the site-of-use.Type: ApplicationFiled: October 17, 2019Publication date: November 11, 2021Inventors: Faissal-Ali EL-TOUFAILI, Dennis LOESCH, Anna-Corina SCHMIDT, Tobias Joachim ZIMMERMANN, Markus OSTERMAYR, Jack F. TINSLEY, Brent BUSBY, Daniel BARRERA-MEDRANO
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Publication number: 20210347924Abstract: Process for producing aqueous polyacrylamide concentrates by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel, comminuting said aqueous polyacrylamide gel and mixing it with an aqueous liquid, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide concentrate hold in a suitable transport unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide, wherein the units of the plant are located at two different locations A and B.Type: ApplicationFiled: October 17, 2019Publication date: November 11, 2021Inventors: Faissal-Ali El-Toufaili, Dennis Loesch, Anna-Corina Schmidt, Tobias Joachim Zimmermann, Markus Ostermayr, Jack F. Tinsley, Brent Busby
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Publication number: 20210179758Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the process is carried out in a modular, relocatable plant. The plant preferably is deployed at a location at which aqueous polyacrylamide solutions are used, for example on an oilfield or in a mining area.Type: ApplicationFiled: October 18, 2018Publication date: June 17, 2021Inventors: Hazel SPRAFKE, Markus OSTERMAYR, Tobias Joachim ZIMMERMANN, Dirk MECKELNBURG, Dennis LOESCH, Faissal-Ali EL-TOUFAILI
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Publication number: 20210070904Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.Type: ApplicationFiled: October 18, 2018Publication date: March 11, 2021Applicant: BASF SEInventors: Dennis LOESCH, Tobias Joachim ZIMMERMANN, Hazel SPRAFKE, Dirk MECKELNBURG, Markus OSTERMAYR, Faissal-Ali EL-TOUFAILI
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Patent number: 10927222Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.Type: GrantFiled: April 20, 2017Date of Patent: February 23, 2021Assignee: BASF SEInventors: Sandra Jeck, Oliver Soetje, Tobias Bringmann, Gabriela Eugenia Fonseca Zepeda, Dirk Meckelnburg, Dennis Loesch, Bjoern Langlotz, John Barratt, Faissal-Ali El-Toufaili, Hazel Sprafke, Bernd Schube, Markus Ostermayr
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Publication number: 20200308314Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous monomer premix from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide solutions wherein the units of the plant are located at two different locations A and B.Type: ApplicationFiled: October 18, 2018Publication date: October 1, 2020Inventors: Hazel SPRAFKE, Dirk MECKELNBURG, Dennis LOESCH, Markus OSTERMAYR, Tobias Joachim ZIMMERMANN, Faissal-Ali EL-TOUFAILI
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Publication number: 20200283675Abstract: Process for producing aqueous polyacrylamide solutions by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel and dissolving said aqueous polyacrylamide gel in water, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide gel hold in a transportable polymerization unit from a location A to a location B. The transportable polymerization unit comprises a cylindrical upper part, a conical part at its lower end, feeds for the aqueous monomer solution, a closable bottom opening, and means allowing to deploy the polymerization unit in a vertical manner.Type: ApplicationFiled: October 18, 2018Publication date: September 10, 2020Inventors: Hazel SPRAFKE, Tobias Joachim ZIMMERMANN, Dirk MECKELNBURG, Dennis LOESCH, Markus OSTERMAYR, Faissal-Ali EL-TOUFAILI
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Method for the production of absorbent polymer particles by polymerizing drops of a monomer solution
Patent number: 10450395Abstract: A process for preparing water-absorbing polymer beads by polymerizing droplets comprising at least one monomer in a gas phase surrounding the droplets, the droplets being obtained by enveloping a first monomer solution with a second monomer solution and polymerizing the second monomer solution and polymerizing to give a more highly crosslinked polymer than the first monomer solution.Type: GrantFiled: August 1, 2013Date of Patent: October 22, 2019Assignee: BASF SEInventors: Dennis Lösch, Matthias Weismantel, Marco Krüger, Antje Ziemer -
Publication number: 20190292330Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.Type: ApplicationFiled: April 20, 2017Publication date: September 26, 2019Applicant: BASF SEInventors: Sandra JECK, Oliver SOETJE, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Dirk MECKELNBURG, Dennis LOESCH, Bjoern LANGLOTZ, John BARRATT, Faissal-Ali EL-TOUFAILI, Hazel SPRAFKE, Bernd SCHUBE, Markus OSTERMAYR
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Publication number: 20190153300Abstract: A method for preparing an aqueous polyacrylamide solution, where the method includes: hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution; directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel; and directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution, wherein the polyacrylamide gel is dissolved by water jet cutting.Type: ApplicationFiled: April 25, 2017Publication date: May 23, 2019Applicant: BASF SEInventors: Hazel SPRAFKE, Faissal-Ali EL-TOUFAILI, Bjoern LANGLOTZ, John BARRATT, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Sandra JECK, Dennis LOESCH, Dirk MECKELNBURG, Markus OSTERMAYR, Bernd SCHUBE, Oliver SOETJE
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Publication number: 20190144574Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises:—hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution,—directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and—directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution.Type: ApplicationFiled: April 25, 2017Publication date: May 16, 2019Applicant: BASF SEInventors: Hazel SPRAFKE, Faissal-Ali EL-TOUFAILI, Bjoern LANGLOTZ, John BARRATT, Tobias BRINGMANN, Gabriela Eugenia FONSECA ZEPEDA, Sandra JECK, Dennis LOESCH, Dirk MECKELNBURG, Markus OSTERMAYR, Bernd SCHUBE, Oliver SOETJE