Patents by Inventor Ralf Ehmke

Ralf Ehmke 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: 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: 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
  • 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
  • Patent number: 8530548
    Abstract: The invention concerns a fiber-reinforced thermoplastic material containing airlaid cellulose fiber material, and uses thereof.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: September 10, 2013
    Assignee: Glatfelter Falkenhagen GmbH
    Inventors: Morten Rise Hansen, Ralf Ehmke
  • 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: 20090306253
    Abstract: The invention concerns a fibre-reinforced thermoplastic material containing airlaid cellulose fibre material, and uses thereof.
    Type: Application
    Filed: March 16, 2007
    Publication date: December 10, 2009
    Inventors: Morten Rise Hansen, Ralf Ehmke