Patents by Inventor Jörg Harren
Jörg Harren 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: 20160106881Abstract: The present invention relates to a process for the production of a water-absorbing polymer structure, comprising the process steps: i) providing an untreated water-absorbing polymer structure having a degree of neutralization of at most 70 mol %; ii) bringing the untreated water-absorbing polymer structure into contact with an acidic component. The invention also relates to the water-absorbing polymer structures obtainable by this process, water-absorbing polymer structures, a composite, a process for the production of a composite, the composite obtainable by this process, foams, shaped articles, fibers, foils, films, cables, sealing materials, liquid-absorbing hygiene articles, carriers for plant and fungal growth-regulating agents, packaging materials, soil additives or building materials, and the use of a water-absorbing polymer structure.Type: ApplicationFiled: December 21, 2015Publication date: April 21, 2016Inventors: Jörg Harren, Stephan Ramlow, Axel Busch, Franck Furno
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Publication number: 20160083532Abstract: A process is described for production of superabsorbents, comprising conveying steps for transporting the particulate material obtained, with use of a conveying machine from the group of the mechanical continuous conveyors with traction means in at least one of the conveying steps. Conveying machines used with preference are tubular drag conveyors and/or bucket conveyors.Type: ApplicationFiled: September 22, 2015Publication date: March 24, 2016Inventors: Dirk Wagner, Thomas Hoefges, Udo Klapperich, Manfred van Stiphoudt, Henry Rudolph, Frank Soppe, Jörg Harren, Franck Furno, Frank Loeker
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Patent number: 8772378Abstract: The present invention relates to improvements in prevention of discoloration of thermoplastic starch materials and their blends with other thermoplastic materials.Type: GrantFiled: November 22, 2011Date of Patent: July 8, 2014Assignee: The Procter & Gamble CompanyInventors: Norman Scott Broyles, Pier-Lorenzo Caruso, Emily Charlotte Boswell, Robert Earl Magness, Ludwig Busam, Jörg Harren, Laurent Wattebled
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Patent number: 8445596Abstract: The invention relates to crosslinked polymerizates which are capable of absorbing, which are based on partially neutralized, monoethylenically unsaturated monomers that carry acidic groups, which exhibit improved properties, in particular, with regard to their ability to transport liquids when in a swollen state, and which have been subsequently crosslinked on the surface thereof with a combination consisting of an organic crosslinker compound, with the exception of polyols, and of a cation provided in the form of a salt in an aqueous solution.Type: GrantFiled: February 9, 2007Date of Patent: May 21, 2013Assignee: Evonik Stockhausen GmbHInventors: Richard Mertens, Jörg Harren
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Patent number: 8357766Abstract: The present invention relates to a continuous process for the production of a superabsorbent polymer comprising providing an acidic liquid aqueous monomer mixture containing dissolved oxygen; continuously feeding the aqueous monomer mixture to a reactor; introducing a source of carbonate or hydrogen carbonate into the aqueous monomer mixture prior to entry into the reactor thereby forming a gas phase comprising carbon dioxide and at least a part of the dissolved oxygen, the gas phase being dispersed in the liquid phase; subjecting the gas/liquid mixture to at least partial phase separation immediately prior to or after entry into the reactor and at least partially removing the separated gaseous phase; subjecting the liquid phase in the reactor to free-radical polymerization to obtain the superabsorbent polymer, and continuously removing the superabsorbent polymer from the reactor.Type: GrantFiled: October 7, 2009Date of Patent: January 22, 2013Assignee: Evonik Stockhausen GmbHInventors: Daniel Fricker, Herbert Gartner, Marc Hager, Jörg Harren, Hans-Peter Kohler, Harald Plöchinger
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Patent number: 8349913Abstract: The present invention relates to a process for the production of a superabsorber, comprising as steps providing a water-absorbing polymer structure, bringing the water-absorbing polymer structure into contact with a modifying agent, preferably a modifying agent, and the further treatment of the water-absorbing polymer structure which has been brought into contact with the modifying agent. The further treatment is carried out at least partly in a rotating container. The invention furthermore relates to a device for the production of a superabsorber, superabsorbers, a composite, a process for the production of a composite, the composites obtainable by this process, chemical products, such as foams, shaped articles or fibers, and the use of a superabsorber.Type: GrantFiled: May 21, 2008Date of Patent: January 8, 2013Assignee: Evonik Stockhausen GmbHInventors: Jörg Harren, Herbert Vorholt, Manfred Van Stiphoudt, Rüdiger Hose, Stephan Ramlow, Stefan Derstappen, Axel Busch, Michael Lange, Waldemar Inger, Kai Hebben
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Publication number: 20120309905Abstract: The present invention relates to a continuous process for the production of a superabsorbent polymer comprising providing an acidic liquid aqueous monomer mixture containing dissolved oxygen; continuously feeding the aqueous monomer mixture to a reactor; introducing a source of carbonate or hydrogen carbonate into the aqueous monomer mixture prior to entry into the reactor thereby forming a gas phase comprising carbon dioxide and at least a part of the dissolved oxygen, the gas phase being dispersed in the liquid phase; subjecting the gas/liquid mixture to at least partial phase separation immediately prior to or after entry into the reactor and at least partially removing the separated gaseous phase; subjecting the liquid phase in the reactor to free-radical polymerization to obtain the superabsorbent polymer, and continuously removing the superabsorbent polymer from the reactor.Type: ApplicationFiled: July 30, 2012Publication date: December 6, 2012Inventors: Daniel Fricker, Herbert Gartner, Marc Hager, Jörg Harren, Hans-Peter Kohler, Harald Plöchinger
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Publication number: 20120302445Abstract: The present invention relates to a process for producing a water-absorbing polymer structure based on acid group-containing monomers, comprising the process steps of: i) providing a monomer solution comprising the optionally partly neutralized, acid group-containing monomer; ii) mixing the monomer solution with fines which consist at least to an extent of 90% by weight, based on the total weight of the fines, of particles having a particle size of less than 850 ?m, to obtain a monomer solution mixed with fines; wherein the mixing in process step ii) is effected in a mixer in which a first stream of the fines and at least one further stream of the monomer solution are passed from different directions simultaneously to a rotating mixing tool.Type: ApplicationFiled: January 18, 2011Publication date: November 29, 2012Inventors: Henry Rudolph, Thomas Hoefges, Manfred Van Stiphoudt, Jörg Harren, Laurent Wattebled, Franck Furno, Frank Soppe
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Publication number: 20120157582Abstract: The present invention relates to improvements in prevention of discoloration of thermoplastic starch materials and their blends with other thermoplastic materials.Type: ApplicationFiled: November 22, 2011Publication date: June 21, 2012Inventors: Norman Scott BROYLES, Pier-Lorenzo CARUSO, Emily Charlotte BOSWELL, Robert Earl MAGNESS, Ludwig BUSAM, Jörg HARREN, Laurent WATTEBLED
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Patent number: 8063121Abstract: The present invention relates to a process for the production of a superabsorbent polymer comprising preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer; feeding said monomer mixture to a reactor; subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel; removing the superabsorbent polymer gel from the reactor; and drying the superabsorbent polymer gel. Where at least one off-gas stream removed from any stage of the process is subjected to scrubbing with a basic aqueous solution prior to venting to obtain an aqueous scrubber solution that is at least partially recycled to any of the above steps of the process.Type: GrantFiled: October 7, 2009Date of Patent: November 22, 2011Assignee: Evonik Stockhausen GmbHInventors: Daniel Fricker, Herbert Gartner, Marc Hager, Jörg Harren, Hans-Peter Kohler, Harald Plöchinger
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Patent number: 8048942Abstract: The present invention relates to a process for the production of a superabsorbent polymer comprising preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer; feeding said monomer mixture to a reactor; subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel; removing the superabsorbent polymer from the reactor; and working-up the superabsorbent polymer removed from the reactor to obtain a final product, whereby a basic aqueous medium comprising carbonate and/or hydrogen carbonate is fed to the superabsorbent polymer gel.Type: GrantFiled: October 7, 2009Date of Patent: November 1, 2011Assignee: Evonik Stockhausen GmbHInventors: Daniel Fricker, Herbert Gartner, Marc Hager, Jörg Harren, Hans-Peter Kohler, Harald Plöchinger
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Patent number: 7833624Abstract: A process for producing an absorbent polymer structure (Pa) by treating the outer portion of an untreated absorbent polymer structure (Pu1). The process includes the step of bringing the outer portion of the untreated absorbent polymer structure (Pu1) into contact with an aqueous solution including at least one chemical cross-linker and at least one inorganic compound in dispersed colloidal form. The process also includes the step of heating the absorbent polymer structure, of which the outer portion has been brought into contact with the aqueous solution, at a temperature within a range from about 40 to about 300° C., so that the outer portion of the absorbent polymer structure is more strongly cross-linked in comparison to the inner portion and the inorganic compound is at least partly immobilized in the outer portion of the absorbent polymer structure.Type: GrantFiled: October 24, 2003Date of Patent: November 16, 2010Assignee: Evonik Stockhuasen GmbHInventors: Jörg Harren, Helmut Brehm, Andreas Kerkmann, Stephan Ramlow
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Patent number: 7728079Abstract: The present invention relates to a process for producing postcrosslinked water-absorbing polymeric formations, comprising the steps of contacting water-absorbing polymeric formations P1 obtained by polymerization of ethylenically unsaturated acid-functional monomers or salts thereof in the presence of a crosslinker with a fluid F1 comprising a postcrosslinker, heating the water-absorbing polymeric formations in contact with the fluid F1 to a temperature in a range from 40 to 300° C. to obtain postcrosslinked water-absorbing polymeric formations P2, the water-absorbing polymeric formations P1 having a thermal stability, as determined in accordance with the test method described herein, of less than 3.0%.Type: GrantFiled: February 24, 2006Date of Patent: June 1, 2010Assignee: Evonik Degussa GmbHInventors: Jörg Harren, Jörg Issberner, Mirko Walden, Rainer Teni, Franck Furno, Peter Werle, Hans-Peter Krimmer
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Publication number: 20100130950Abstract: The present invention relates to a process for the production of a superabsorber, comprising as steps providing a water-absorbing polymer structure, bringing the water-absorbing polymer structure into contact with a modifying agent, preferably a modifying agent, and the further treatment of the water-absorbing polymer structure which has been brought into contact with the modifying agent. The further treatment is carried out at least partly in a rotating container. The invention furthermore relates to a device for the production of a superabsorber, superabsorbers, a composite, a process for the production of a composite, the composites obtainable by this process, chemical products, such as foams, shaped articles or fibers, and the use of a superabsorber.Type: ApplicationFiled: May 21, 2008Publication date: May 27, 2010Inventors: Jörg Harren, Herbert Vorholt, Manfred Van Stiphoudt, Rüdiger Hose, Stephan Ramlow, Stefan Derstappen, Axel Busch, Michael Lange, Waldemar Inger, Kal Hebben
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Publication number: 20100105808Abstract: The present invention relates to a continuous process for the production of a superabsorbent polymer comprising providing an acidic liquid aqueous monomer mixture containing dissolved oxygen; continuously feeding the aqueous monomer mixture to a reactor; introducing a source of carbonate or hydrogen carbonate into the aqueous monomer mixture prior to entry into the reactor thereby forming a gas phase comprising carbon dioxide and at least a part of the dissolved oxygen, the gas phase being dispersed in the liquid phase; subjecting the gas/liquid mixture to at least partial phase separation immediately prior to or after entry into the reactor and at least partially removing the separated gaseous phase; subjecting the liquid phase in the reactor to free-radical polymerization to obtain the superabsorbent polymer, and continuously removing the superabsorbent polymer from the reactor.Type: ApplicationFiled: October 7, 2009Publication date: April 29, 2010Inventors: Daniel Fricker, Herbert GARTNER, Marc HAGER, Jörg HARREN, Hans-Peter KOHLER, Harald PLÖCHINGER
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Publication number: 20100105809Abstract: The present invention relates to a process for the production of a superabsorbent polymer comprising preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer; feeding said monomer mixture to a reactor; subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel; removing the superabsorbent polymer gel from the reactor; and drying the superabsorbent polymer gel. Where at least one off-gas stream removed from any stage of the process is subjected to scrubbing with a basic aqueous solution prior to venting to obtain an aqueous scrubber solution that is at least partially recycled to any of the above steps of the process.Type: ApplicationFiled: October 7, 2009Publication date: April 29, 2010Inventors: Daniel Fricker, Herbert Gartner, Marc Hager, Jörg Harren, Hans-Peter Kohler, Harald Plöchinger
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Publication number: 20100099799Abstract: The present invention relates to a process for the production of a superabsorbent polymer comprising preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer; feeding said monomer mixture to a reactor; subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel; removing the superabsorbent polymer from the reactor; and working-up the superabsorbent polymer removed from the reactor to obtain a final product, whereby a basic aqueous medium comprising carbonate and/or hydrogen carbonate is fed to the superabsorbent polymer gel.Type: ApplicationFiled: October 7, 2009Publication date: April 22, 2010Inventors: Daniel Fricker, Herbert Gartner, Marc Hager, Jörg Harren, Hans-Peter Kohler, Harald Plöchinger
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Patent number: 7625957Abstract: Water-absorbing, antimicrobial polymer particles comprising from about 1 to about 500 ppm, based on the particles, of a silver ion based on a silver salt, wherein the silver salt has a solubility product of at least about 1×10?8 (mol/l)m+n; at least about 10 wt. %, based on the polymer particle, of a water-absorbing polymer based on: (?1) from about 50 to about 99.99 wt. % polymerized, ethylenically unsaturated, acid groups-containing monomers or salts thereof, (?2) 0 to about 40 wt. % polymerized, mono-ethylenically unsaturated monomers polymerizable with ?1, (?3) from about 0.01 to about 5 wt. %, preferably from about 0.1 to about 3 wt. % of one or more crosslinkers, (?4) 0 to about 30 wt. % of a water soluble polymer and (?5) 0 to about 20 wt. % of auxiliaries, the concentration of the silver ion based on a silver salt in at most about 90 vol. % of the particles is less than about 0.01 ppm.Type: GrantFiled: April 23, 2003Date of Patent: December 1, 2009Assignee: Stockhausen GmbHInventors: Jörg Harren, Jörg Issberner, Harald Schmidt
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Patent number: 7179862Abstract: The invention relates to crosslinked polymerizates which are capable of absorbing, which are based on partially neutralized, monoethylenically unsaturated monomers that carry acidic groups, which exhibit improved properties, in particular, with regard to their ability to transport liquids when in a swollen state, and which have been subsequently crosslinked on the surface thereof with a combination consisting of an organic crosslinker compound, with the exception of polyols, and of a cation provided in the form of a salt in an aqueous solution.Type: GrantFiled: June 6, 2003Date of Patent: February 20, 2007Assignee: Stockhausen GmbHInventors: Richard Mertens, Joerg Harren
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Patent number: RE47104Abstract: The present invention relates to a water-absorbing composition comprising water-absorbing polymer structures, on the surface of which is at least one tannin fraction which has a number-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, which has a weight-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, or which is a hydrolysable gallotannin. The present invention also relates to a process for the preparation of a water-absorbing composition, the water-absorbing composition obtainable by this process, a composite, a process for the production of a composite, the composite obtainable by this process, chemical products, such as, for example, hygiene articles, the use of a water-absorbing composition or of a composite and the use of a tannin fraction.Type: GrantFiled: February 22, 2016Date of Patent: October 30, 2018Assignee: Evonik Degussa GmbHInventors: Franck Furno, Laurent Wattebled, Anne Ix-Mund, Harald Schmidt, Markus Henn, Jörg Harren