Patents by Inventor Henning Roettger

Henning Roettger 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).

  • Patent number: 10561545
    Abstract: The present invention relates to an absorbent structure and an absorbent article containing said absorbent structure. The absorbent structure, having a sequence of layers connected together, comprises a first outer absorbent layer made from airlaid material, a second outer absorbent layer made from airlaid material, and a fluid storage layer made from airlaid material arranged between the first and second outer absorbent layers, wherein the airlaid material of the first outer absorbent layer comprises first cellulose fibres, the airlaid material of the second outer absorbent layer comprises second cellulose fibres and the airlaid material of the fluid storage layer comprises third cellulose fibres and super-absorbent components, wherein the first and second cellulose fibres have a lower pH value than the third cellulose fibres and the pH value of the first and second cellulose fibres is less than 5.0.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: February 18, 2020
    Inventors: Anselm Ebert, Joerg Eilers, Stefanie Lutter, Henning Roettger
  • Patent number: 10512567
    Abstract: The present invention is a liquid absorbent sandwich web as can be used in absorbent products such as in disposable absorbent articles such as diapers, feminine hygiene articles or incontinence devices, and to the manufacturing of such webs. The liquid absorbent sandwich web provides high absorbent capacity without compromising softness.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: December 24, 2019
    Assignee: GLATFELTER FALKENHAGEN GMBH
    Inventors: Ralf Ehmke, Henning Röttger, Reno Volkmer
  • Publication number: 20190350775
    Abstract: An absorbent article including an absorbent core having a fluid distribution layer and fluid storage layer, the fluid distribution layer being formed of two or more sub-layers. A first sub-layer has a first amount of multiple component binder fibers or crosslinked cellulose fibers, or a combination thereof. A second and/or subsequent sub-layer comprises treated or untreated pulp and a second amount of multiple component binder fibers, crosslinked cellulose fibers, or a combination thereof. The % by weight of the first sub-layer of the first amount of multicomponent binder fibers and/or crosslinked cellulose fibers is greater than the % by weight of the second or subsequent sub-layer of the second amount of multiple component binder fibers and/or crosslinked cellulose fibers.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Inventors: Cagda Biasutti, Carola Elke Beatrice Krippner, Michele Mazzeo, Henning Roettger, Reno Volkmer
  • Publication number: 20190350773
    Abstract: The present invention relates to absorbent hygiene articles, such as baby diapers, adult incontinence or feminine hygiene articles that incorporate an absorbent system. It is particularly suited for articles which are intended to receive more than one liquid gush load, as the absorbent system comprises an intermediate liquid storage member that holds the liquid of a gush and gradually releases it to an ultimate storage member exhibiting a smaller size than the intermediate storage member.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Inventors: Cagda Biasutti, Carola Elke Beatrice Krippner, Michele Mazzeo, Henning Roettger, Ralf Ehmke
  • Publication number: 20170348166
    Abstract: The present invention relates to an absorbent structure and an absorbent article containing said absorbent structure. The absorbent structure, having a sequence of layers connected together, comprises a first outer absorbent layer made from airlaid material, a second outer absorbent layer made from airlaid material, and a fluid storage layer made from airlaid material arranged between the first and second outer absorbent layers, wherein the airlaid material of the first outer absorbent layer comprises first cellulose fibres, the airlaid material of the second outer absorbent layer comprises second cellulose fibres and the airlaid material of the fluid storage layer comprises third cellulose fibres and super-absorbent components, wherein the first and second cellulose fibres have a lower pH value than the third cellulose fibres and the pH value of the first and second cellulose fibres is less than 5.0.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 7, 2017
    Inventors: Anselm EBERT, Joerg EILERS, Stefanie LUTTER, Henning ROETTGER
  • Publication number: 20170129730
    Abstract: A delivery device for feeding planar material webs, for example airlaids, wetlaids, non-wovens, or films/foils, to a processing installation is proposed, said delivery device having a splicing unit and a multiple-web unwinding device. The splicing unit is configured for connecting a fibrous-web end of a preceding individual fibrous web to a fibrous-web lead of a subsequent individual fibrous web, so as to in this way feed a non-interrupted fibrous web to the processing installation. The splicing unit is moreover configured for processing airlaid fibrous webs that are wound on winding cores and are thus made up as roll goods. The multiple-web unwinding device has at least two winding-core mounts that are capable of being loaded in a mutually independent manner.
    Type: Application
    Filed: April 7, 2015
    Publication date: May 11, 2017
    Applicant: GLATFELTER FALKENHAGEN GMBH
    Inventor: Henning Röttger
  • Patent number: 9408942
    Abstract: The invention relates to an absorbent structure having a sequence of layers, comprising at least one first and one second outer layer and at least one liquid storage layer arranged therebetween, wherein the layers are arranged on top of each other and form a layer structure, wherein at least the liquid storage layer comprises a cellulose material, preferably cellulose fibers, and a super-absorbent polymer SAP, preferably SAP particles and/or SAP fibers, wherein the liquid storage layer comprises at least less, preferably no, binder than liquid-storing layers of the absorbent structure adjacent to the liquid storage layer. The absorbent structure has particularly high flexibility in the wet and the dry state. It can preferably be used in disposable items. The invention further relates to a method for producing the absorbent structure and to a device for producing same.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: August 9, 2016
    Assignee: GLATFELTER FALKENHAGEN GMBH
    Inventors: Henning Röttger, Stefanie Lutter, Ralf Ehmke
  • Publication number: 20150164710
    Abstract: The present invention is a liquid absorbent sandwich web as can be used in absorbent products such as in disposable absorbent articles such as diapers, feminine hygiene articles or incontinence devices, and to the manufacturing of such webs. The liquid absorbent sandwich web provides high absorbent capacity without compromising softness.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 18, 2015
    Applicant: GLATFELTER FALKENHAGEN GMBH
    Inventors: Ralf Ehkme, Henning Röttger, Reno Volkmer
  • Patent number: 8603622
    Abstract: An absorbent structure with a sequence of two layers includes at least one liquid absorption layer, a subsequent liquid storage layer with super absorbent polymer particles and super absorbent polymer fibers, and a subsequent liquid distribution layer. The layers are connected and form a sheet structure. The liquid storage layer has its super absorbent polymer extending from the liquid storage layer into the liquid distribution layer in order to generate a return suction effect for the liquid that has passed through the liquid absorption layer and liquid storage layer into the liquid distribution layer.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: December 10, 2013
    Assignee: Glatfelter Falkenhagen GmbH
    Inventors: Henning Röttger, Reno Volkmer
  • Patent number: 8420557
    Abstract: The present invention concerns a nonwoven fabric the fibers of which have polyethylene on at least part of their surface, where the fibers are thermally bonded and the non-woven fabric exhibits an abrasion of less than 0.5 mg/cm2, in particular of less than 0.4 mg/cm2, and an embossed area fraction of less than 35%, in particular of less than 28%. Furthermore a device is made available for the manufacture of a non-woven fabric, using a polyethylene-containing polymer, with a take-down system underneath a spinning plate that causes the take-down of the polyethylene, where the spinning plate has an L/D ratio of between 4 and 9.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: April 16, 2013
    Assignee: Fiberweb Corovin GmbH
    Inventors: Markus Haberer, Henning Röttger
  • Publication number: 20120308780
    Abstract: An absorbent structure with a sequence of two layers includes at least one liquid absorption layer, a subsequent liquid storage layer with super absorbent polymer particles and super absorbent polymer fibers, and a subsequent liquid distribution layer. The layers are connected and form a sheet structure. The liquid storage layer has its super absorbent polymer extending from the liquid storage layer into the liquid distribution layer in order to generate a return suction effect for the liquid that has passed through the liquid absorbtion layer and liquid storage layer into the liquid distribution layer.
    Type: Application
    Filed: May 25, 2012
    Publication date: December 6, 2012
    Inventors: Henning Röttger, Reno Volkmer
  • Publication number: 20120302983
    Abstract: The invention relates to an absorbent structure having a sequence of layers, comprising at least one first and one second outer layer and at least one liquid storage layer arranged therebetween, wherein the layers are arranged on top of each other and form a layer structure, wherein at least the liquid storage layer comprises a cellulose material, preferably cellulose fibers, and a super-absorbent polymer SAP, preferably SAP particles and/or SAP fibers, wherein the liquid storage layer comprises at least less, preferably no, binder than liquid-storing layers of the absorbent structure adjacent to the liquid storage layer. The absorbent structure has particularly high flexibility in the wet and the dry state. It can preferably be used in disposable items. The invention further relates to a method for producing the absorbent structure and to a device for producing same.
    Type: Application
    Filed: January 28, 2011
    Publication date: November 29, 2012
    Applicant: Glatfelter Falkenhagen GmbH
    Inventors: Henning Röttger, Stefanie Lutter, Ralf Ehmke
  • Publication number: 20120101460
    Abstract: The invention relates to a fibrous porous fluid absorbent material comprising a nonwoven, in particular made by an Airlaid process and comprising fibers at least 50% of said fibers being cellulosic fibers. The fibrous porous fluid absorbent material comprises a core wherein said fibers of said core are non-connected or only partially connected and crosslinked with each other and at least one perforated surface layer having a perforation. The fibers of the surface layer are connected to each other and the flexural rigidity of said fibrous porous fluid absorbent material measured according to EDANA Standard Test Method 90.5 is reduced by at least 20%, preferably by at least 30%, more preferably by at least 40%, most preferably by at least 50%, compared to a corresponding non perforated fibrous porous fluid absorbent material comprising a core and a non perforated surface layer.
    Type: Application
    Filed: July 1, 2010
    Publication date: April 26, 2012
    Applicant: Glatfelter Falkenhagen GmbH
    Inventors: Ralf Ehmke, Henning Röttger
  • Publication number: 20110184365
    Abstract: An absorbing structure has a sequence of layers, including at least first and second outer layers with at least a liquid storage layer disposed therebetween. The layers are disposed on top of one another and form a layered structure. At least the liquid storage layer has a cellulose material, preferably cellulose fibers, and a super absorbing polymer SAP, preferably SAP particles and/or SAP fibers. The liquid storage layer uses at least less binder material than the other liquid storing plies of the absorbing structure. The liquid storing plies are adjacent to the liquid storage layer. Preferably, the liquid storage layer does not have binder material.
    Type: Application
    Filed: January 28, 2010
    Publication date: July 28, 2011
    Inventors: Henning Röttger, Stefanie Lutter, Ralf Ehmke
  • Publication number: 20110143623
    Abstract: A method for producing an elastic nonwoven fabric, comprising: stretching a nonwoven web in the cross machine direction, machine direction, or both directions to reduce the basis weight and/or denier of the nonwoven web to form the elastic nonwoven fabric, wherein the nonwoven web comprises a plurality of multicomponent strands having first and second polymer components longitudinally coextensive along the length of the strands, said first component comprising an elastomeric polymer, and said second polymer component comprising a polymer less elastic than the first polymer component.
    Type: Application
    Filed: August 3, 2005
    Publication date: June 16, 2011
    Inventors: Jean Claude Abed, Henning Roettger, Steven P. Webb, Jared A. Austin
  • Publication number: 20100062231
    Abstract: This invention concerns an elastic multilayer composite, comprising a non-elastic film layer and an elastic nonwoven layer. This invention also concerns a process for manufacturing an elastic multilayer composite, comprising: forming the composite using a non-elastic film layer and an elastic nonwoven layer.
    Type: Application
    Filed: August 3, 2005
    Publication date: March 11, 2010
    Inventors: Jean-Claude Abed, Henning Roettger, Steven P. Webb, Jared A. Austin
  • Publication number: 20080233824
    Abstract: This invention concerns an elastic multilayer composite, comprising an elastic film layer sandwiched between a first elastic nonwoven layer and an optional second elastic nonwoven layer, and a process for making the same. The laminate is stabilized via bonding according to either: adhesive bonding between the film and nonwoven layer(s), direct extrusion lamination of the film to one or more nonwoven layer(s), or attachment of the film to one or more of the nonwoven layers at a plurality of points via thermopoint bonding. This invention also concerns a process for manufacturing an elastic multilayer composite, comprising: bonding under neutral tension or substantially neutral tension at least one elastic film layer to at least one elastic nonwoven layer.
    Type: Application
    Filed: October 23, 2007
    Publication date: September 25, 2008
    Inventors: Jean Claude Abed, Henning Roettger, Steven P. Webb
  • Patent number: 7390553
    Abstract: The present invention relates to a perforated thermoplastic structure comprising at least a first layer (8) and a plurality of perforations, which extend through the first layer (8). The perforations have a three-dimensional, preferably approximately conical or cylindrical shape (18). A second layer forms an inner surface (20) of the shape (18), whereas the first layer forms an outer surface (21) of the shape (18). The first layer contains a thermoplastic material, whose melting point is lower than a melting point of the thermoplastic material of the second layer.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 24, 2008
    Assignee: Fiberweb Corovin GmbH
    Inventors: Mathias Muth, Joachim Bauer, Henning Roettger
  • Publication number: 20080032579
    Abstract: The invention relates to a spun-bonded non-woven made of polymer fibers. These polymer fibers have a non-circular cross-section and a low fiber count. The polymer fibers have predominant directions in the spun-bonded non-woven. The spun-bonded non-woven has a high optical and/or physical opacity while having a low mass per unit area.
    Type: Application
    Filed: April 6, 2004
    Publication date: February 7, 2008
    Inventors: Jean-Claude Abed, Eduard Herda, Henning Roettger, Ralf Sodemann
  • Publication number: 20070090555
    Abstract: The invention relates to a method and an apparatus for producing a spunbonded fabric of a thermoplastic material, wherein the filaments resulting from broken fibers are additionally tempered and/or drawn, and have different diameters and different fiber lengths.
    Type: Application
    Filed: May 12, 2004
    Publication date: April 26, 2007
    Inventors: Henning Roettger, Ralf Sodemann, Michael Voges