Patents by Inventor Frank Hermanutz
Frank Hermanutz 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: 20230228002Abstract: The invention relates to a process for the production of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process, characterized in that a) a spinning solution that contains an ionic liquid and a dissolved polymer is produced; b) said spinning solution is guided through an extruder before it is divided into fibers via a die; and c) the obtained fibers are guided via an air gap through a coagulation bath.Type: ApplicationFiled: January 18, 2023Publication date: July 20, 2023Inventors: Falko Abels, Tomasz Cwik, Ronald Beyer, Frank Hermanutz
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Publication number: 20230193521Abstract: A description is given of continuous fibers based on cellulose and/or cellulose derivatives, more particularly for producing flame-retardant textiles or carbon fibers. The cellulose and/or the cellulose derivatives are in a dehydrated form in the continuous fibers. The oxygen content is 29 to 39 wt %, the limiting oxygen index LOI is 25 to 40 (according to DIN EN ISO 6941; 2004-05) and the density is 1.3 to 1.45 g/cm3 (according to DIN 65569-1; 1992-10). The continuous fibers may be produced advantageously by impregnating the starting fibers with a solution, more particularly an aqueous solution, of a specific salt which under thermal conditions releases a dehydrating acid which brings about the dehydration of cellulose and/or of cellulose derivatives in a subsequent thermal stage. The continuous fibers of the invention can be used in particular to produce advantageous carbon fibers.Type: ApplicationFiled: May 21, 2021Publication date: June 22, 2023Applicants: TECHNIKUM LAUBHOLZ GMBH, CENTROTHERM INTERNATIONAL AGInventors: Manuel CLAUSS, Andreas KELLER, Frank HERMANUTZ, Gunter FAUTH, Marc VOCHT, Michael BUCHMEISER
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Patent number: 11585015Abstract: The invention relates to a process for the production of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process, characterized in that a) a spinning solution that contains an ionic liquid and a dissolved polymer is produced; b) said spinning solution is guided through an extruder before it is divided into fibers via a die; and c) the obtained fibers are guided via an air gap through a coagulation bath.Type: GrantFiled: February 1, 2017Date of Patent: February 21, 2023Assignee: DEUTSCHE INSTITUTE FUR TEXTIL-UND FASERFORSCHUNG DENKENDORFInventors: Falko Abels, Tomasz Cwik, Ronald Beyer, Frank Hermanutz
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Publication number: 20220170267Abstract: The invention relates to a prestressed concrete body, containing prestressed filament yarns based on cellulose and/or cellulose derivatives. Advantageously, said prestressed concrete body is produced in that: 1.) filament yarns based on cellulose and/or derivatives thereof are clamped into a shaping container, 2.) the clamped filament yarns are wetted with water to make them swell, 3.) a prestress of approximately 0.5 to 10.0 kg/4000 dtex is applied to the wetted filament yarns, 4.) liquid concrete is poured into the shaping container containing the prestressed filament yarns, 5.) the liquid concrete in the shaping container is cured to form precast concrete, maintaining the specified applied prestress. Useful application possibilities are opened up by the invention.Type: ApplicationFiled: March 26, 2020Publication date: June 2, 2022Inventors: Michael BUCHMEISER, Frank HERMANUTZ
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Publication number: 20220041511Abstract: The invention relates to a method of producing a carbon-ceramic shaped body comprising a carbon fibre-reinforced carbon matrix and a content of silicon carbide and silicon, characterised in that a carbonisable shaped body having an organic matrix based on cellulose and reinforced with carbonisable textile structures has been carbonised to form a porous shaped body and the porous carbonised shaped body is then subjected to a liquid silicisation to give the carbon-ceramic shaped body, This method is performable in an economically advantageously manner without losing the beneficial properties achievable according to the prior art.Type: ApplicationFiled: September 26, 2019Publication date: February 10, 2022Inventors: Tanja SCHNECK, Frank HERMANUTZ
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Patent number: 11124629Abstract: The present invention relates to a regenerated cellulose fiber which contains a hydrophobic substance selected from the group consisting of alkyl ketene dimers, alkenyl ketene dimers, alkyl succinic anhydrides, alkenyl succinic anhydrides, alkyl glutaric acid anhydrides, alkenyl glutaric acid anhydrides, alkyl isocyanates, alkenyl isocyanates, fatty acid anhydrides as well as mixtures thereof incorporated in the cellulose matrix.Type: GrantFiled: December 4, 2013Date of Patent: September 21, 2021Assignee: KELHEIM FIBRES GMBHInventors: Walter Roggenstein, Frank Hermanutz, Philipp Wimmer
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Patent number: 10995429Abstract: The invention relates to a process for producing carbon fibers from cellulosic fibers, characterized in that cellulosic fibers, which contain a sulfonic acid salt of formula (I), wherein R1 represents a hydrocarbon group and K+ represents a cation, are converted into carbon fibers.Type: GrantFiled: February 1, 2017Date of Patent: May 4, 2021Assignee: DEUTSCHE INSTITUTE FURTEXTIL-UND FASERFORSCHUNG DENKENDORFInventors: Falko Abels, Martin Merger, Tomasz Cwik, Klemens Massonne, Johanna Sporl, Frank Hermanutz, Michael R. Buchmeiser
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Publication number: 20200407508Abstract: A method for producing films, fibers, and moldings of a polybenzazole polymer (P) by reacting at temperatures of 0 to 120° C. a mixture including (a) aromatic dicarboxylic compound(s) (I): wherein Ar1 is optionally substituted phenylene, naphthalenediyl, anthracenediyl, biphenyldiyl, diphenylmethanediyl, diphenyl ether diyl, diphenyl thio ether diyl, diphenyl sulfone diyl, benzophenonediyl, pyridinediyl, pyrimidinediyl, furandiyl, or thiophenediyl, substituents being —F, —Cl, —Br, —OR1, and —C1-C10-alkyl, R1 being —H or —C1-C10-alkyl; X1 and X2 are independently-OR2, —F, —Cl, or —Br, R2 being —H, —C1-C10-alkyl, —C1-C10-alkenyl or a repeating unit (a): wherein m is a natural number from 1 to 50, and R3 is —H, C1-C10-alkyl, or C1-C10-alkenyl; (b) aromatic diamino compound(s) of formula (IIa), (IIb), (IIc) and/or (IId); (c) at least one ionic liquid (IL), to obtain a product, processing the product at temperatures 0 to 100° C. and heating of the articles obtained at temperatures of 250 to 500° C.Type: ApplicationFiled: March 1, 2019Publication date: December 31, 2020Applicant: BASF SEInventors: Marcel BRILL, Ines DEBEAUVAIS DE VASCONCELOS, Maik NOWAK, Olivier FLEISCHEL, Martin MERGER, Achim STAMMER, Joachim RUCH, Frank HERMANUTZ, Ronald BEYER, Michael R. BUCHMEISER
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Publication number: 20190359773Abstract: The present invention relates to a method for producing a polybenzazole polymer (P) by reacting a reaction mixture (RG) comprising at least one aromatic dicarboxylic compound of the general formula (I), at least one aromatic diamino compound of the general formula (IIa), (IIb), (IIc) and/or (IId) and also at least one ionic liquid (IL). The present invention also relates to the polybenzazole polymer (P), which is obtainable by the method according to the invention, and also to the use of the polybenzazole polymer (P), for example as fiber material.Type: ApplicationFiled: September 5, 2017Publication date: November 28, 2019Applicant: BASF SEInventors: Johannes David HOECKER, Klemens MASSONNE, Marcel BRILL, Martin MERGER, Joachim RUCH, Olivier FLEISCHEL, Frank HERMANUTZ, Joerg UNOLD
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Publication number: 20190062954Abstract: The invention relates to a process for producing carbon fibers from cellulosic fibers, characterized in that cellulosic fibers, which contain a sulfonic acid salt of formula (I), wherein R1 represents a hydrocarbon group and K+ represents a cation, are converted into carbon fibers.Type: ApplicationFiled: February 1, 2017Publication date: February 28, 2019Inventors: Falko Abels, Martin Merger, Tomasz Cwik, Klemens Massonne, Johana Sporl, Frank Hermanutz, Michael R. Buchmeiser
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Publication number: 20190048490Abstract: The invention relates to a process for the production of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process, characterized in that a) a spinning solution that contains an ionic liquid and a dissolved polymer is produced; b) said spinning solution is guided through an extruder before it is divided into fibers via a die; and c) the obtained fibers are guided via an air gap through a coagulation bath.Type: ApplicationFiled: February 1, 2017Publication date: February 14, 2019Inventors: Falko Abels, Tomasz Cwik, Ronald Beyer, Frank Hermanutz
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Publication number: 20170081787Abstract: A method of producing carbon fibers from cellulose fibers comprises bringing cellulose fibers having a water content of more than 20 parts by weight of water per 100 parts by weight of cellulose fiber into contact with a solution of additives and thereafter converting the additized cellulose fibers comprising not less than 1 part by weight of additives per 100 parts by weight of cellulose into carbon fibers.Type: ApplicationFiled: May 12, 2015Publication date: March 23, 2017Applicant: BASF SEInventors: Sunghee SON, Klemens MASSONNE, Frank HERMANUTZ, Johanna SPOERL, Michael R. BUCHMEISER, Ronald BEYER
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Publication number: 20150329707Abstract: The present invention relates to a regenerated cellulose fiber which contains a hydrophobic substance selected from the group consisting of alkyl ketene dimers, alkenyl ketene dimers, alkyl succinic anhydrides, alkenyl succinic anhydrides, alkyl glutaric acid anhydrides, alkenyl glutaric acid anhydrides, alkyl isocyanates, alkenyl isocyanates, fatty acid anhydrides as well as mixtures thereof incorporated in the cellulose matrix.Type: ApplicationFiled: December 4, 2013Publication date: November 19, 2015Applicant: KELHEIM FIBRES GMBHInventors: Walter Roggenstein, Frank Hermanutz, Philipp Wimmer
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Patent number: 8999211Abstract: A process for producing porous structures from polyamide by dissolving the polyamide in an ionic liquid and precipitating or coagulating the dissolved polyamide by contacting the solution with a liquid precipitant medium. Fibers are produced from the dissolved polyamide in a wet-spinning process by precipitation in protic solvents, in particular water, a C1-4-alkanol or mixtures thereof, and subsequent freeze-drying. Foils, films or coatings are produced by blade coating the dissolved polyamide onto a substrate surface, optionally spraying with protic solvent, in particular water, a C1-4-alcohol or mixtures thereof, dipping into a precipitation or coagulation bath, freeze-drying of the resulting foil, of the film or of the coated substrate. Molded parts are prepared by extracting the dissolved polyamide with protic solvents, preferably water, a C1-4-alcohol or mixtures thereof, wherein the dissolved polymer is transformed to a solid or wax-like state by cooling and extracted after subsequent molding.Type: GrantFiled: February 11, 2009Date of Patent: April 7, 2015Assignee: BASF SEInventors: Stefan Schwiegk, Axel Wilms, Ronald Frans Maria Lange, Michael Siemer, Giovanni D'Andola, Volker Rauschenberger, Frank Hermanutz, Frank Gaehr, Julien Courtois, Dirk Gerhard
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Patent number: 8841441Abstract: The invention relates to a method for producing regenerated biopolymers in the form of carbohydrates, using a solvent system that contains the biopolymers dissolved therein. The solvent system is based on a melted ionic liquid and optionally a protic solvent or a mixture thereof. The biopolymers dissolved in the solvent system are precipitated in a coagulation medium, said medium comprising a protic coagulant or a mixture of protic coagulants. The method according to the invention is characterized in that the surface tension ? of the coagulant or the mixture of coagulants is 99% to 30% of the surface tension ? of water, the surface tension being measured according to ASTM D 1590-60 at a temperature of 50° C. The method according to the invention is economical and flexible and leads to advantageous products, especially in the form of staple fibers which are especially not fibrillated and have an advantageous wet to dry strength ratio.Type: GrantFiled: November 13, 2008Date of Patent: September 23, 2014Assignee: BASF SEInventors: Eric Uerdingen, Michael Siemer, Michael Lutz, Thomas Wisniewski, Frank Hermanutz, Frank Gaehr
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Patent number: 8637583Abstract: A process for the manufacture of a fiber or foil comprising at least one optionally functionalized polymer with a high Tg selected from the group consisting of poly(aryl ether sulfone) (PAES), poly(aryl ether ketone) (PAEK) and aromatic polyimide, comprising the steps of (aa) providing a solution comprising at least 45 wt. % of the polymer, and at least 20 wt. %, of at least one halogen-free organic solvent (S1) for the polymer, both wt % based upon the weight of the solution; (bb) pushing the solution through a nozzle; and (cc) introducing the solution into a coagulation bath comprising: (cc1) at least one liquid (L1) in which the polymer is insoluble, and optionally (cc2) at least one organic solvent (S2) for the polymer, identical to or different from the organic solvent (S1), to form a fiber or foil. A fiber or foil obtained by this process as well as to fibers or foils with specific porosity features and/or mechanical properties.Type: GrantFiled: October 16, 2009Date of Patent: January 28, 2014Assignee: Solvay Advanced Polymers, L.L.C.Inventors: Frank Hermanutz, Mark G. Reichmann
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Patent number: 8163215Abstract: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating.Type: GrantFiled: December 22, 2006Date of Patent: April 24, 2012Assignee: BASF AktiengesellschaftInventors: Veit Stegmann, Klemens Massonne, Matthias Maase, Eric Uerdingen, Michael Lutz, Frank Hermanutz, Frank Gaehr
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Publication number: 20110263729Abstract: A process for the manufacture of a fiber or foil comprising at least one optionally functionalized polymer with a high Tg selected from the group consisting of poly(aryl ether sulfone) (PAES), poly(aryl ether ketone) (PAEK) and aromatic polyimide, comprising the steps of (aa) providing a solution comprising at least 45 wt. % of the polymer, and at least 20 wt. % of at least one halogen-free organic solvent (S1) for the polymer, both wt % based upon the weight of the solution; (bb) pushing the solution through a nozzle; and (cc) introducing the solution into a coagulation bath comprising: (cc1) at least one liquid (L1) in which the polymer is insoluble, and optionally (cc2) at least one organic solvent (S2) for the polymer, identical to or different from the organic solvent (S1), to form a fiber or foil. A fiber or foil obtained by this process as well as to fibers or foils with specific porosity features and/or mechanical properties.Type: ApplicationFiled: October 16, 2009Publication date: October 27, 2011Applicant: SOLVAY ADVANCED POLYMERS, L.L.C.Inventors: Frank Hermanutz, Mark G. Reichmann
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Publication number: 20100310853Abstract: A process for producing porous structures from polyamide by dissolving the polyamide in an ionic liquid and precipitating or coagulating the dissolved polyamide by contacting the solution with a liquid precipitant medium. Fibers are produced from the dissolved polyamide in a wet-spinning process by precipitation in protic solvents, in particular water, a C1-4-alkanol or mixtures thereof, and subsequent freeze-drying. Foils, films or coatings are produced by blade coating the dissolved polyamide onto a substrate surface, optionally spraying with protic solvent, in particular water, a C1-4-alcohol or mixtures thereof, dipping into a precipitation or coagulation bath, freeze-drying of the resulting foil, of the film or of the coated substrate. Molded parts are prepared by extracting the dissolved polyamide with protic solvents, preferably water, a C1-4-alcohol or mixtures thereof, wherein the dissolved polymer is transformed to a solid or wax-like state by cooling and extracted after subsequent moulding.Type: ApplicationFiled: February 11, 2009Publication date: December 9, 2010Inventors: Stefan Schwiegk, Axel Wilms, Ronald Frans Maria Lange, Michael Siemer, Giovanni D'Andola, Volker Rauschenberger, Frank Hermanutz, Frank Gaehr
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Publication number: 20100256352Abstract: The invention relates to a method for producing regenerated biopolymers in the form of carbohydrates, using a solvent system that contains the biopolymers dissolved therein. The solvent system is based on a melted ionic liquid and optionally a protic solvent or a mixture thereof. The biopolymers dissolved in the solvent system are precipitated in a coagulation medium, said medium comprising a protic coagulant or a mixture of protic coagulants. The method according to the invention is characterized in that the surface tension a of the coagulant or the mixture of coagulants is 99% to 30% of the surface tension a of water, the surface tension being measured according to ASTM D 1590-60 at a temperature of 50° C. The method according to the invention is economical and flexible and leads to advantageous products, especially in the form of staple fibers which are especially not fibrillated and have an advantageous wet to dry strength ratio.Type: ApplicationFiled: November 13, 2008Publication date: October 7, 2010Applicant: BASF SEInventors: Eric Uerdingen, Michael Siemer, Michael Lutz, Thomas Wisniewski, Frank Hermanutz, Frank Gaehr