Patents by Inventor Christoph Loick
Christoph Loick 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: 11680184Abstract: The present invention relates to an anti-stick processing aid for use in a process for producing water-absorbing polymers, comprising the 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 monomers copolymerizable with (?1), (?3) 0.001 to 10% by weight of crosslinkers, (?4) 0 to 30% by weight of polymers, (?5) 0 to 80% by weight of water, and (?6) 0 to 20% by weight of assistants, (ii) free-radical polymerization with crosslinking to form a hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sieving the hydrogel polymer, (v) surface postcrosslinking the hydrogel polymer and (vi) drying and finishing the water-absorbing polymer, wherein the anti-stick processing aid is used before and/or in steps (iii).Type: GrantFiled: July 24, 2015Date of Patent: June 20, 2023Assignee: Evonik Superabsorber GmbHInventors: Christoph Loick, Scott Smith, Anne Ix-Mund, Nicolaas De Bruin, Laurent Wattebled, Michael Azad, Frank Loeker
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Patent number: 10738141Abstract: The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.Type: GrantFiled: April 25, 2019Date of Patent: August 11, 2020Assignee: Evonik Operations GmbHInventors: Christoph Loick, Scott Smith
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Patent number: 10427135Abstract: Described is the production of water-absorbing polymeric particles by polymerizing a monomer solution or suspension comprising a) at least one ethylenically unsaturated acid-functional monomer which is optionally at least partly present as salt, b) at least one crosslinker and c) at least one initiator, wherein the process further comprises drying the resulting polymer and also optionally grinding the dried polymer and sieving the ground polymer and also optionally surface-postcrosslinking the dried and possibly ground and sieved polymer, and wherein the polymerization is carried out in the presence of aminopolycarboxylic acids and/or salts thereof, in particular in the presence of ethylenediaminedisuccinic acid and/or a salt thereof.Type: GrantFiled: September 9, 2015Date of Patent: October 1, 2019Assignee: Evonik Degussa GmbHInventors: Christoph Loick, Ingo Loy, Dominik Gartz
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Patent number: 10391195Abstract: The present invention relates to a particulate absorbent polymer material having: i) a maximum APCi×10 sec value ?1.6) for at least one number i selected from the group of integers from 2 to 12 (=APCmax); or ii) a value ?12 for the sum total of all APCi×10 sec values for all numbers i from the group of integers from 2 to 12 (=APCsum); wherein the APCi×10 sec value is: APCi×10 sec=QIi×10 sec value2×PIi×10 sec value where the QIi×10 sec value is the swell index and i×10 seconds after adding the 0.9% by weight NaCl solution, and the PIi×10 sec value is the permeability index and i×10 seconds after adding the 0.9% by weight NaCl solution.Type: GrantFiled: November 12, 2012Date of Patent: August 27, 2019Assignee: Evonik Degussa GmbHInventors: Markus Henn, Laurent Wattebled, Peter Herbe, Jorg Harren, Christoph Loick
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Publication number: 20190248939Abstract: The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.Type: ApplicationFiled: April 25, 2019Publication date: August 15, 2019Inventors: Christoph Loick, Scott Smith
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Patent number: 10287379Abstract: The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.Type: GrantFiled: March 5, 2015Date of Patent: May 14, 2019Assignee: Evonik Degussa GmbHInventors: Christoph Loick, Scott J. Smith
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Patent number: 9737874Abstract: A process for producing a water-absorbing polymer composition, comprising the process steps of (i) mixing (?1) 0.1 to 99.999% by weight of 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) 0 to 30% by weight of water-soluble polymers, and (?5) 0 to 20% by weight of one or more assistants, where the sum of their weights (?1) to (?5) is 100% by weight, (ii) free-radical polymerization with crosslinking to form a water-insoluble aqueous untreated hydrogel polymer, and surface postcrosslinking the ground hydrogel polymer wherein blowing agents having a particle size of 100 ?m to 900 ?m are added to the aqueous monomer solution prior to the addition of the initiator and the start of the free-radical polymerization.Type: GrantFiled: April 3, 2012Date of Patent: August 22, 2017Assignee: Evonik Degussa GmbHInventors: Laurent Wattebled, Christoph Loick, Jorg Harren, Stefan Leininger
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Patent number: 9440220Abstract: The present invention further relates to a particulate superabsorbent polymer composition comprising a crosslinker composition that is the reaction product selected from (i) saturated amines and/or saturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds, (ii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with saturated glycidyl compounds and/or saturated polyglycidyl compounds, or (iii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds; and a surface crosslinking agent applied to the particle surface. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymer compositions.Type: GrantFiled: December 30, 2011Date of Patent: September 13, 2016Assignee: Evonik CorporationInventors: Matthias Naumann, Stanley A. McIntosh, Frank Schubert, Christoph Loick
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Publication number: 20160074550Abstract: Described is an odor adsorbent, in particular for use in absorptive hygiene articles, comprising: a) peroxomonosulfuric acid and/or salts thereof and also b) zeolite. Also described are water-absorbing polymeric particles wherein the particles are laden with a mixture comprising a) peroxomonosulfuric acid and/or salts thereof and also b) zeolite, and wherein the water-absorbing polymeric particles preferably comprise a crosslinked polymer based on partially neutralized acrylic acid, and more particularly are surface-postcrosslinked.Type: ApplicationFiled: September 9, 2015Publication date: March 17, 2016Inventors: Christoph Loick, Laurent Wattebled
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Publication number: 20160074832Abstract: Described is the production of water-absorbing polymeric particles by polymerizing a monomer solution or suspension comprising a) at least one ethylenically unsaturated acid-functional monomer which is optionally at least partly present as salt, b) at least one crosslinker and c) at least one initiator, wherein the process further comprises drying the resulting polymer and also optionally grinding the dried polymer and sieving the ground polymer and also optionally surface-postcrosslinking the dried and possibly ground and sieved polymer, and wherein the polymerization is carried out in the presence of aminopolycarboxylic acids and/or salts thereof, in particular in the presence of ethylenediaminedisuccinic acid and/or a salt thereofType: ApplicationFiled: September 9, 2015Publication date: March 17, 2016Inventors: Christoph Loick, Ingo Loy, Dominik Gartz
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Publication number: 20160024332Abstract: The present invention relates to an anti-stick processing aid for use in a process for producing water-absorbing polymers, comprising the 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 polymerizable, ethylenically unsaturated monomers copolymerizable with (?l), (?3) 0.Type: ApplicationFiled: July 24, 2015Publication date: January 28, 2016Inventors: Christoph Loick, Scott Smith, Anne Ix-Mund, Nicolaas De Bruin, Laurent Wattebled, Michael Azad, Frank Loeker
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Publication number: 20150252130Abstract: The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.Type: ApplicationFiled: March 5, 2015Publication date: September 10, 2015Inventors: Christoph Loick, Scott J. Smith
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Publication number: 20150093575Abstract: The present invention further relates to a particulate superabsorbent polymer composition comprising a crosslinker composition that is the reaction product selected from (i) saturated amines and/or saturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds, (ii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with saturated glycidyl compounds and/or saturated polyglycidyl compounds, or (iii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds; and a surface crosslinking agent applied to the particle surface. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymer compositions.Type: ApplicationFiled: December 30, 2011Publication date: April 2, 2015Applicant: Evonik CorporationInventors: Matthias Naumann, Stanley A. McIntosh, Frank Schubert, Christoph Loick
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Patent number: 8859701Abstract: A process for producing a water-absorbing polymer comprises: (i) mixing (?1) 0.1-99.99% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof, or ethylenically unsaturated monomers including a protonated or quaternized nitrogen, or mixtures thereof, (?2) 0-70% by weight of ethylenically unsaturated monomers copolymerizable with (?1), (?3) 0.001-10% by weight of one or more crosslinkers, (?4) 0-30% by weight of water-soluble polymers, and (?5) 0-20% by weight of one or more assistants, where the sum of the weights (?1) to (?5) is 100%; (ii) free-radical polymerization with crosslinking to form an untreated hydrogel polymer; (iii) coarse comminution of the untreated hydrogel polymer to give pieces having a diameter from 0.1 mm to 5.0 cm; (iv) cooling and grinding the untreated hydrogel polymer; (v) drying the untreated hydrogel polymer after grinding at a temperature from 85° C. to 260° C.; (vi) postcrosslinking the hydrogel polymer and (vii) drying the water-absorbing polymer.Type: GrantFiled: October 5, 2011Date of Patent: October 14, 2014Assignee: Evonik Degussa GmbHInventors: Christoph Loick, Dominik Gartz, Laurent Wattebled, Jorg Harren
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Publication number: 20140257223Abstract: The present invention relates to a particulate absorbent polymer material having: i) a maximum APCi×10 sec value ?1.6) for at least one number i selected from the group of integers from 2 to 12 (=APCmax); or ii) a value ?12 for the sum total of all APCi×10 sec values for all numbers i from the group of integers from 2 to 12 (=APCsum); wherein the APCi×10 sec value is: APCi×10 sec=QIi×10 secvalue2×PIi×10 secvalue where the QIi×10 sec value is the swell index and i×10 seconds after adding the 0.9% by weight NaCl solution, and the PIi×10 sec value is the permeability index and i×10 seconds after adding the 0.9% by weight NaCl solution.Type: ApplicationFiled: November 12, 2012Publication date: September 11, 2014Applicant: EVONIK DEGUSSA GMBHInventors: Markus Henn, Laurent Wattebled, Peter Herbe, Jorg Harren, Christoph Loick
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Publication number: 20140054497Abstract: A process for producing a water-absorbing polymer composition, comprising the process steps of (i) mixing (?1) 0.1 to 99.999% by weight of 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) 0 to 30% by weight of water-soluble polymers, and (?5) 0 to 20% by weight of one or more assistants, where the sum of their weights (?1) to (?5) is 100% by weight, (ii) free-radical polymerization with crosslinking to form a water-insoluble aqueous untreated hydrogel polymer, and surface postcrosslinking the ground hydrogel polymer wherein blowing agents having a particle size of 100 ?m to 900 ?m are added to the aqueous monomer solution prior to the addition of the initiator and the start of the free-radical polymerization.Type: ApplicationFiled: April 3, 2012Publication date: February 27, 2014Applicant: Evonik Degussa GmbHInventors: Laurent Wattebled, Christoph Loick, Jorg Harren, Stefan Leininger
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Publication number: 20140045683Abstract: A process for producing a water-absorbing polymer comprises: (i) mixing (?1) 0.1-99.99% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof, or ethylenically unsaturated monomers including a protonated or quaternized nitrogen, or mixtures thereof, (?2) 0-70% by weight of ethylenically unsaturated monomers copolymerizable with (?1), (?3) 0.001-10% by weight of one or more crosslinkers, (?4) 0-30% by weight of water-soluble polymers, and (?5) 0-20% by weight of one or more assistants, where the sum of the weights (?1) to (?5) is 100%; (ii) free-radical polymerization with crosslinking to form an untreated hydrogel polymer; (iii) coarse comminution of the untreated hydrogel polymer to give pieces having a diameter from 0.1 mm to 5.0 cm; (iv) cooling and grinding the untreated hydrogel polymer; (v) drying the untreated hydrogel polymer after grinding at a temperature from 85° C. to 260° C.; (vi) postcrosslinking the hydrogel polymer and (vii) drying the water-absorbing polymer.Type: ApplicationFiled: October 5, 2011Publication date: February 13, 2014Applicant: Evonik Degussa GmbHInventors: Christoph Loick, Dominik Gartz, Laurent Wattebled, Jorg Harren
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Patent number: 8476189Abstract: The present invention further relates to a process to make a superabsorbent polymer comprising the steps of a) preparing a neutralized monomer solution comprising a polymerizable monomer selected from unsaturated acid groups-containing monomers, ethylenically unsaturated carboxylic acid anhydride, salts, or derivatives thereof and a caustic agent selection from an alkali agent, wherein the polymerizable monomer is neutralized to from about 50 mol % to about 85 mol %; b) forming a crosslinker monomer mixture by adding an internal crosslinker composition to the neutralized monomer solution wherein the internal crosslinking composition is the reaction product of a stoichiometric excess of amine with a glycidyl compound, wherein the internal crosslinker composition has a residual amount of glycidyl compounds of less than about 500 ppm based on the mass of the internal crosslinker composition; and c) polymerizing the crosslinker monomer mixture to make a superabsorbent polymer.Type: GrantFiled: February 28, 2013Date of Patent: July 2, 2013Assignee: Evonik Stockhausen LLCInventors: Matthias Naumann, Stanley A. McIntosh, Frank Schubert, Christoph Loick
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Patent number: 8420567Abstract: The present invention further relates to a process to make a superabsorbent polymer comprising the steps of a) preparing a neutralized monomer solution comprising a polymerizable monomer selected from unsaturated acid groups-containing monomers, ethylenically unsaturated carboxylic acid anhydride, salts, or derivatives thereof and a caustic agent selection from an alkali agent, wherein the polymerizable monomer is neutralized to from about 50 mol % to about 85 mol %; b) forming a crosslinker monomer mixture by adding an internal crosslinker composition to the neutralized monomer solution wherein the internal crosslinking composition is the reaction product of a stoichiometric excess of amine with a glycidyl compound, wherein the internal crosslinker composition has a residual amount of glycidyl compounds of less than about 500 ppm based on the mass of the internal crosslinker composition; and c) polymerizing the crosslinker monomer mixture to make a superabsorbent polymer.Type: GrantFiled: December 30, 2011Date of Patent: April 16, 2013Assignee: Evonik Stockhausen, LLCInventors: Matthias Naumann, Stanley A. McIntosh, Frank Schubert, Christoph Loick
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Publication number: 20120145956Abstract: The present invention relates to a process for producing surface-modified water-absorbing polymer structures, comprising the process steps of providing a multitude of water-absorbing polymer structures and treating the surface of the water-absorbing polymer structures with a plasma and mixing a filler with the water-absorbing polymer structures. The invention also relates to an apparatus for this process, to the surface-modified water-absorbing polymer structures obtainable by this process, to a composite comprising these surface-modified water-absorbing polymer structures and a substrate, to a process for producing a composite, to a composite obtainable by this process, to chemical products comprising these surface-modified water-absorbing polymer structures or the composite, and to the use of the surface-modified water-absorbing polymer structures or of the composite in chemical products.Type: ApplicationFiled: August 18, 2010Publication date: June 14, 2012Inventors: Mirko Walden, Christoph Loick, Jürgen Erwin Lang, Maciej Olek, Harald Schmidt