Patents by Inventor Rainer Teni
Rainer Teni 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: 9555148Abstract: This invention relates to a method for producing a water-absorbing polymer, including the following steps: (i) mixing (?1) 0.1 to 99.999 wt % polymerizable, ethylenically unsaturated, acid-group-containing monomers; (?2) 0 to 70 wt % polymerized ethylenically unsaturated, monomers copolymerizable with (?1); (?3) 0.00 1 to 10 wt %, cross-linking agent(s); (?4) 0 to 30 wt % water-soluble polymers; and (?5) 0 to 20 wt % additive(s), wherein the total quantity by weight of (?1) to (?5) amounts to 100 wt %, (ii) radical polymerization while cross-linking, in order to form a hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sifting the water-absorbing polymer, (v) surface post-cross-linking the hydrogel polymer, and (vi) drying and processing the polymer, wherein, before the admixture of the initiator and the start of radical polymerization, 0.01 to 5 wt % of a surfactant, relative to acrylic acid, 0.01 to 5 wt % foaming agent, are added.Type: GrantFiled: November 12, 2012Date of Patent: January 31, 2017Assignee: Evonik Degussa GmbHInventors: Laurent Wattebled, Jorg Harren, Matthias Naumann, Franck Furno, Matthias Lobert, Rainer Teni
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Patent number: 9534095Abstract: The present invention relates to a process for the preparation of water-absorbing polymer structures, comprising the following process steps: i) providing an untreated, water-absorbing polymer structure; and ii) bringing the untreated, water-absorbing polymer structure into contact with a salt comprising a divalent or higher-valent cation of a metal and at least one organic base as anion. The invention relates also to the water-absorbing polymer structures obtainable by that process, to water-absorbing polymer structures, to a composite comprising a water-absorbing polymer structure and a substrate, to a process for the preparation of a composite, to the composite obtainable by that process, to chemical products, such as foams, molded articles and fibers comprising water-absorbing polymer structures or a composite, to the use of water-absorbing polymer structures or of a composite in chemical products and to the use of a salt in the treatment of the surface of water-absorbing polymer structures.Type: GrantFiled: August 13, 2014Date of Patent: January 3, 2017Assignee: Evonik Degussa GmbHInventors: Mirko Walden, Harald Schmidt, Rainer Teni, Armin Reimann, Franck Furno, Jorg Issberner, Peter Herbe, Ursula Nielinger, Michael Keup
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Publication number: 20160108227Abstract: The present invention relates to a water-absorbing polymer comprising the process steps of (i) mixing (?1) 0.1 to 99.999% by weight of polymerizable, ethylenically unsaturated monomers containing acid groups, or salts thereof, (?2) 0 to 70% by weight of polymerized, ethylenically unsaturated monomers copolymerizable with (?1), (?3) 0.001 to 10% by weight of one or more crosslinkers, (?4) water-soluble polymers, and (?5) one or more assistants, where the sum of the weights (?1) to (?5) is 100% by weight, (ii) free-radical polymerization with crosslinking to form a water-insoluble, aqueous untreated hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sieving the water-absorbing polymer to size, (v) surface postcrosslinking the ground and sieved hydrogel polymer and (vi) drying and finishing the water-absorbing polymer, wherein 0.01 to 5% by weight of a blowing agent having a particle size of 10 ?m to 900 ?m are added, based on the hydrogel polymer.Type: ApplicationFiled: April 29, 2014Publication date: April 21, 2016Inventors: Laurent Wattebled, Markus Henn, Rainer Teni
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Patent number: 9133342Abstract: The present invention relates to a superabsorber composition comprising an at least surface-crosslinked, water-absorbing polymer structure having a structure surface, a large number of fine particles at least partly immobilized on the structure surface. The invention furthermore relates to a process for the preparation of a superabsorber composition, the superabsorber composition obtainable by this process, a composite comprising the superabsorber composition according to the invention, a process for the production of a composite, the composite obtainable by this process, the use of the superabsorber composition according to the invention in chemical products and chemical products comprising the superabsorber composition according to the invention or the composite according to the invention.Type: GrantFiled: April 20, 2007Date of Patent: September 15, 2015Assignee: Evonik Degussa GmbHInventors: Mirko Walden, Rainer Teni, Armin Reimann, Harald Schmidt
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Patent number: 8907017Abstract: The present invention relates to a process for the preparation of water-absorbing polymer structures, comprising the following process steps: I) providing an untreated, water-absorbing polymer structure; and II) bringing the untreated, water-absorbing polymer structure into contact with a salt comprising a divalent or higher-valent cation of a metal and at least one organic base as anion. The invention relates also to the water-absorbing polymer structures obtainable by that process, to water-absorbing polymer structures, to a composite comprising a water-absorbing polymer structure and a substrate, to a process for the preparation of a composite, to the composite obtainable by that process, to chemical products, such as foams, molded articles and fibers comprising water-absorbing polymer structures or a composite, to the use of water-absorbing polymer structures or of a composite in chemical products and to the use of a salt in the treatment of the surface of water-absorbing polymer structures.Type: GrantFiled: April 20, 2007Date of Patent: December 9, 2014Assignee: Evonik Degussa GmbHInventors: Mirko Walden, Harald Schmidt, Rainer Teni, Armin Reimann, Franck Furno, Jörg Issberner, Peter Herbe, Ursula Nielinger, Michael Keup
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Publication number: 20140350191Abstract: The present invention relates to a process for the preparation of water-absorbing polymer structures, comprising the following process steps: i) providing an untreated, water-absorbing polymer structure; and ii) bringing the untreated, water-absorbing polymer structure into contact with a salt comprising a divalent or higher-valent cation of a metal and at least one organic base as anion. The invention relates also to the water-absorbing polymer structures obtainable by that process, to water-absorbing polymer structures, to a composite comprising a water-absorbing polymer structure and a substrate, to a process for the preparation of a composite, to the composite obtainable by that process, to chemical products, such as foams, molded articles and fibers comprising water-absorbing polymer structures or a composite, to the use of water-absorbing polymer structures or of a composite in chemical products and to the use of a salt in the treatment of the surface of water-absorbing polymer structures.Type: ApplicationFiled: August 13, 2014Publication date: November 27, 2014Inventors: Mirko Walden, Harald Schmidt, Rainer Teni, Armin Reimann, Franck Furno, Jorg Issberner, Peter Herbe, Ursula Nielinger, Michael Keup
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Publication number: 20140312273Abstract: This invention relates to a method for producing a water-absorbing polymer, including the following steps: (i) mixing (?1) 0.1 to 99.999 wt % polymerizable, ethylenically unsaturated, acid-group-containing monomers; (?2) 0 to 70 wt % polymerized ethylenically unsaturated, monomers copolymerizable with (?1); (?3) 0.00 1 to 10 wt %, cross-linking agent(s); (?4) 0 to 30 wt % water-soluble polymers; and (?5) 0 to 20 wt % additive(s), wherein the total quantity by weight of (?1) to (?5) amounts to 100 wt %, (ii) radical polymerization while cross-linking, in order to form a hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sifting the water-absorbing polymer, (v) surface post-cross-linking the hydrogel polymer, and (vi) drying and processing the polymer, wherein, before the admixture of the initiator and the start of radical polymerization, 0.01 to 5 wt % of a surfactant, relative to acrylic acid, 0.01 to 5 wt % foaming agent, are added.Type: ApplicationFiled: November 12, 2012Publication date: October 23, 2014Applicant: EVONIK DEGUSSA GMBHInventors: Laurent Wattebled, Jorg Harren, Matthias Naumann, Franck Furno, Matthias Lobert, Rainer Teni
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Publication number: 20120001122Abstract: The present invention relates to water-absorbing polymer structures at least partly comprising hollow bodies with a shell of an inorganic or organic material. The invention further relates to a process for producing water-absorbing polymer structures, to the water-absorbing polymer structures obtainable by this process, to a composite, to a process for producing a composite, to the composite obtainable by this process, to chemical products, for instance foams, moldings or fibers, to the use of water-absorbing polymer structures or of a composite in chemical products, for instance foams, moldings or fibers, and to the use of hollow bodies with a shell of an inorganic or organic material.Type: ApplicationFiled: March 9, 2010Publication date: January 5, 2012Inventors: Laurent Wattebled, Rainer Teni, Jorg Harren
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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: 20090227741Abstract: The present invention relates to a process for the preparation of water-absorbing polymer structures, comprising the following process steps: i) providing an untreated, water-absorbing polymer structure; and ii) bringing the untreated, water-absorbing polymer structure into contact with a salt comprising a divalent or higher-valent cation of a metal and at least one organic base as anion. The invention relates also to the water-absorbing polymer structures obtainable by that process, to water-absorbing polymer structures, to a composite comprising a water-absorbing polymer structure and a substrate, to a process for the preparation of a composite, to the composite obtainable by that process, to chemical products, such as foams, molded articles and fibers comprising water-absorbing polymer structures or a composite, to the use of water-absorbing polymer structures or of a composite in chemical products and to the use of a salt in the treatment of the surface of water-absorbing polymer structures.Type: ApplicationFiled: April 20, 2007Publication date: September 10, 2009Inventors: Mirko Walden, Harald Schmidt, Rainer Teni, Armin Reimann, Franck Furno, Jörg Issberner, Pater Herbe, Ursula Nielinger, Michael Keup
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Publication number: 20090105389Abstract: The present invention relates to a superabsorber composition comprising an at least surface-crosslinked, water-absorbing polymer structure having a structure surface, a large number of fine particles at least partly immobilized on the structure surface. The invention furthermore relates to a process for the preparation of a superabsorber composition, the superabsorber composition obtainable by this process, a composite comprising the superabsorber composition according to the invention, a process for the production of a composite, the composite obtainable by this process, the use of the superabsorber composition according to the invention in chemical products and chemical products comprising the superabsorber composition according to the invention or the composite according to the invention.Type: ApplicationFiled: April 20, 2007Publication date: April 23, 2009Inventors: Mirko Walden, Rainer Teni, Armin Reimann, Harald Schmidt
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Publication number: 20080214740Abstract: 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: ApplicationFiled: February 24, 2006Publication date: September 4, 2008Applicant: DEGUSSA GMBHInventors: Jorg Harren, Jorg Issberner, Mirko Walden, Rainer Teni, Franck Furno, Peter Werle, Hans-Peter Krimmer
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Publication number: 20060057375Abstract: The invention relates to a process for producing an aqueous phase- or water-absorbing polymer fiber from a composition comprising a polymer (A1) and water in an amount of at least 10 wt. %, based upon total weight of the polymer (A1), whereby at least two different regions of the polymer (A1) are moved away from each other by free pulling apart as a result of the effect of an external force and a device for producing these fibers, an absorbent polymer fiber as well as the use of these absorbent polymer fibers and of the device.Type: ApplicationFiled: November 28, 2003Publication date: March 16, 2006Inventors: Jorg Harren, Jochen Houben, Rainer Teni, Michael De Marco