Patents by Inventor Manuel Steiner
Manuel Steiner 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: 20240075403Abstract: The invention relates to a thin film evaporator (D) for producing a transfer mixture according to the direct dissolution method, having a feed (1), a housing (4) and an outlet (2), wherein the feed (1) introduces a starting material, made of cellulose, water and a functional fluid, into the housing (4), wherein an evaporator shaft (5) situated in the housing (4) rotatingly sweeps the starting material over the heated interior of the housing (4), wherein the product is heated and some of the water evaporates so as to result in the transfer mixture, which flows to the outlet (2) together with a supply stream, wherein the through-flow capacity of the outlet (2) is greater than the supply stream.Type: ApplicationFiled: January 12, 2022Publication date: March 7, 2024Applicant: List Technology AGInventors: Manuel Steiner, Roland Kunkel, Daniel Witte, Judith Andrea Michelle Günther
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Publication number: 20240076832Abstract: Mixing kneader for processing a transfer mixture into a molding solution, according to the direct dissolution method, having a feed, a housing and a discharge, wherein the feed introduces a product consisting essentially of cellulose, water and a functional liquid into the housing, wherein a kneader shaft situated in the housing rotationally mixes and kneads the product and sweeps wipes it over heated inner surfaces of the mixing kneader, wherein reducing the amount of undissolved particles in the product and the size of the particles are reduced, and evaporating some of the water evaporates to produce form a molding solution, wherein the process volume of the mixing kneader is determined only by the requirements of a molding solution flow capacity.Type: ApplicationFiled: January 12, 2022Publication date: March 7, 2024Applicant: List Technology AGInventors: Manuel Steiner, Roland Kunkel, Daniel Witte, Judith Andrea Michelle Günther
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Publication number: 20220316095Abstract: The invention discloses a preparation method and a production device for producing a recycled fiber spinning solution with using a solvent, which comprises two or more vertical wiped film evaporators (3, 4, . . . ) connected with a single horizontal cylindrical kneading reactor. The aqueous mixture of cellulose and solvent and auxiliary agent is prepared into a spinnable cellulose spinning dope, which is characterized by injecting the material mixture into two or more vertical wiped film evaporators and a horizontal cylindrical kneading reactor, each unit is preferably equipped with a separate condensing system, and the vacuum system can be separately configured to share a vacuum system.Type: ApplicationFiled: June 15, 2020Publication date: October 6, 2022Applicant: List Technology AGInventors: Roland Kunkel, Daniel Witte, Sven König, Manuel Steiner, Weilie Wang
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Patent number: 9555558Abstract: A method for production of a molded article from a base substance in a device for mixing of the base substance with a solvent is provided. The method includes mixing a base substance to produce a molding solution with the solvent and at least partially removing the solvent from the mixture; and feeding the molding solution to a device for further processing of a product and diluting the molding solution before further processing. In embodiments, the diluent is introduced to the device before a discharge device and/or in the discharge device.Type: GrantFiled: April 8, 2011Date of Patent: January 31, 2017Assignee: LIST HOLDING AGInventors: Manuel Steiner, Andreas Diener, Oliver Tretzack, Wangqian Zhao
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Patent number: 9480933Abstract: A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.Type: GrantFiled: July 1, 2015Date of Patent: November 1, 2016Assignee: LIST HOLDING AGInventors: Daniel Witte, Thomas Isenschmid, Manuel Steiner
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Patent number: 9394626Abstract: The invention relates to a method for treating a monomer, pre-polymer, polymer or a corresponding mixture, in particular for producing a dope for producing a polymer fiber, in particular a p-aramide fiber, in which the monomer, pre-polymer, polymer, additives or a corresponding mixture is admixed with a solvent, blended, fused, homogenized and/or degassed and then discharged, which takes place at least partially in a reactor (7), is to force-feed the monomer, pre-polymer, polymer or a corresponding mixture into the reactor (7) using a force-feed device (4).Type: GrantFiled: August 6, 2010Date of Patent: July 19, 2016Assignee: List Holding AGInventors: Pierre Liechti, Reinhard Geisler, Manuel Steiner
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Publication number: 20150298022Abstract: A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.Type: ApplicationFiled: July 1, 2015Publication date: October 22, 2015Inventors: Daniel Witte, Thomas Isenschmid, Manuel Steiner
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Patent number: 9079984Abstract: A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.Type: GrantFiled: June 29, 2011Date of Patent: July 14, 2015Assignee: List Holding AGInventors: Daniel Witte, Thomas Isenschmid, Manuel Steiner
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Patent number: 8519093Abstract: A process for the continuous thermal treatment of mixed substances, especially of solutions, suspensions and emulsions, wherein the continuous treatment of the mixed substances is divided into a main vaporization and a degassing stage, in which instance the main vaporization and the degassing take place in each case takes place in a separate mixer-kneader.Type: GrantFiled: February 5, 2010Date of Patent: August 27, 2013Assignee: List Holding AGInventors: Andreas Diener, Pierre-Alain Fleury, Thomas Isenschmid, Alfred Kunz, Alain Schwick, Manuel Steiner, Daniel Witte
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Publication number: 20130153158Abstract: A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.Type: ApplicationFiled: June 29, 2011Publication date: June 20, 2013Applicant: List Holdings AGInventors: Daniel Witte, Thomas Isenschmid, Manuel Steiner
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Publication number: 20130093112Abstract: A method for production of a molded article from a base substance in a device for mixing of the base substance with a solvent is provided. The method includes mixing a base substance to produce a molding solution with the solvent and at least partially removing the solvent from the mixture; and feeding the molding solution to a device for further processing of a product and diluting the molding solution before further processing. In embodiments, the diluent is introduced to the device before a discharge device and/or in the discharge device.Type: ApplicationFiled: April 8, 2011Publication date: April 18, 2013Applicant: LIST HOLDING AGInventors: Manuel Steiner, Andreas Diener, Oliver Tretzack, Wangqian Zhao
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Publication number: 20120140587Abstract: The invention relates to a method for treating a monomer, pre-polymer, polymer or a corresponding mixture, in particular for producing a dope for producing a polymer fibre, in particular a p-aramide fibre, in which the monomer, pre-polymer, polymer, additives or a corresponding mixture is admixed with a solvent, blended, fused, homogenised and/or degassed and then discharged, which takes place at least partially in a reactor (7), is to force-feed the monomer, pre-polymer, polymer or a corresponding mixture into the reactor (7) using a force-feed device (4).Type: ApplicationFiled: August 6, 2010Publication date: June 7, 2012Applicant: List Holding AGInventors: Pierre Liechti, Reinhard Geisler, Manuel Steiner
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Publication number: 20110294978Abstract: A process for the continuous thermal treatment of mixed substances, especially of solutions, suspensions and emulsions, wherein the continuous treatment of the mixed substances is divided into a main vaporization and a degassing stage, in which instance the main vaporization and the degassing take place in each case takes place in a separate mixer-kneader.Type: ApplicationFiled: February 5, 2010Publication date: December 1, 2011Applicant: LIST HOLDING AGInventors: Andreas Diener, Pierre-Alain Fleury, Thomas Isenschmid, Alfred Kunz, Alain Schwick, Manuel Steiner, Daniel Witte