Patents by Inventor John Joseph Louden
John Joseph Louden 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: 9814634Abstract: The present invention relates to fluid-absorbent articles, comprising a fluid-absorbent core comprising at least 60% by weight of fluid-absorbent polymer particles and not more than 40% by weight of cellulose based fibers and an acquisition-distribution layer comprising at least 90% by weight of synthetic non-cellulose based fibers and not more than 10% by weight of cellulose based fibers. The thickness deviation of the bi-folded fluid-absorbent article in longitudinal direction is less than 10%. More particularly, the present invention relates to folding and packaging of disposable fluid-absorbent articles such as diapers, training pants.Type: GrantFiled: October 11, 2012Date of Patent: November 14, 2017Assignee: BASF SEInventors: Ulrich Schröder, Rüdiger Funk, John Joseph Louden
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Patent number: 9480968Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.Type: GrantFiled: June 19, 2014Date of Patent: November 1, 2016Assignee: BASF SEInventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, Sylvia Bertha, John Joseph Louden
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Publication number: 20160206772Abstract: The present invention relates to a fluid-absorbent article, comprising a water-absorbent core with a basis weight of the fluid-absorbent core at the insult zone of at least 500 gsm, comprising 10 to 100% by weight water-absorbent polymer particles, wherein the water-absorbent polymer particles having a mean sphericity (SPHT) from 0.8 to 0.95 and satisfying the following conditions: (a) the sum of centrifuge retention capacity (CRC) and absorbency under high load (AUHL) being at least 60 g/g, and/or (b) the log10(SFC)>5.7?0.138×CRC, with SFC being not less than 5, wherein the CRC is given in g/g and the SFC in 10?7 cm3?s/g.Type: ApplicationFiled: March 20, 2014Publication date: July 21, 2016Applicant: BASF SEInventors: Ulrich Schröder, Rüdiger Funk, John Joseph Louden
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Patent number: 8895800Abstract: The present invention relates to fluid-absorbent articles, comprising an upper liquid-pervious layer, a lower liquid-impervious layer and a fluid-absorbent core, wherein the fluid-absorbent core comprises a fibrous material and 10 to 95% by weight of spherical fluid-absorbent polymer particles having a moisture content of at least 8% by weight.Type: GrantFiled: July 30, 2009Date of Patent: November 25, 2014Assignee: BASF SEInventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, John Joseph Louden
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Publication number: 20140302985Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.Type: ApplicationFiled: June 19, 2014Publication date: October 9, 2014Applicant: BASF SEInventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, Sylvia Bertha, John Joseph Louden
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Patent number: 8796174Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.Type: GrantFiled: August 3, 2009Date of Patent: August 5, 2014Assignee: BASF SEInventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, Sylvia Bertha, John Joseph Louden
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Patent number: 8669410Abstract: The present invention relates to fluid-absorbent articles, comprising an upper liquid-pervious layer, a lower liquid-impervious layer, a fluid-absorbent core, wherein the fluid-absorbent core comprises a fibrous material and 10 to 95% by weight of spherical fluid-absorbent polymer particles, and an acquisition distribution layer, wherein the acquisition distribution layer comprises a fibrous material and 0 to 20% by weight of spherical fluid-absorbent polymer particles.Type: GrantFiled: July 30, 2009Date of Patent: March 11, 2014Assignee: BASF SEInventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, John Joseph Louden
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Publication number: 20110166541Abstract: An application system for applying a solid particle includes an injector housing having a material inlet, a gas inlet, and a material outlet, and an occluder moveably disposed within the injector housing between the gas inlet and the material outlet. The injector housing and the occluder define there between at least one adjustable aperture downstream of the material inlet and in fluid communication with the gas inlet and the material outlet. The aperture has a first open area with the occluder in a first position and a second open area with the occluder in a second position, the second open area being different than the first open area. The system also includes a nozzle having a nozzle inlet coupled to the material outlet and a nozzle outlet, the inlet having a circular cross-section and the outlet having a rectangular cross-section.Type: ApplicationFiled: September 14, 2009Publication date: July 7, 2011Applicant: BASE SE a German CorporationInventors: Oskar Stephan, Reiner Witt, Ulrich Schröder, John Joseph Louden, Xiaomin Zhang, Martin Juarez-Zamacona
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Publication number: 20110130275Abstract: The present invention relates to a process for producing fluid-absorbent cores, comprising mixing a fibrous material and fluid-absorbent polymer particles having low moisture content and low apparent density and pressing the obtained mixture under specific conditions.Type: ApplicationFiled: August 3, 2009Publication date: June 2, 2011Inventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, Sylvia Bertha, John Joseph Louden
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Publication number: 20110125119Abstract: The present invention relates to fluid-absorbent articles, comprising an upper liquid-pervious layer, a lower liquid-impervious layer, a fluid-absorbent core, wherein the fluid-absorbent core comprises a fibrous material and 10 to 95% by weight of spherical fluid-absorbent polymer particles, and an acquisition distribution layer, wherein the acquisition distribution layer comprises a fibrous material and 0 to 20% by weight of spherical fluid-absorbent polymer particles.Type: ApplicationFiled: July 30, 2009Publication date: May 26, 2011Applicant: BASF SEInventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, John Joseph Louden