Patents by Inventor Erik Alexander

Erik Alexander 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).

  • Publication number: 20130004757
    Abstract: The present invention is directed to hygiene articles comprising nanofibers. The nanofibers are made from a melt film fibrillation process with a polymer composition having a melt flow rate of less than about 400 decigram per minute. The nanofibers, having a diameter of less than 1 micron, must comprise a significant number of the fibers in one layer of the web contained by the hygiene article. The hygiene articles include diapers, training pants, adult incontinence pads, catamenials products such as feminine care pads and pantiliners, tampons, personal cleansing articles, personal care articles, and personal care wipes including baby wipes, facial wipes, and feminine wipes.
    Type: Application
    Filed: June 25, 2004
    Publication date: January 3, 2013
    Inventors: Olaf Erik Alexander Isele, Rajeev Chhabra
  • Patent number: 8343891
    Abstract: A method of improving the properties of urea granulates, more especially the caking tendency, the dust formation and the foaming tendency in aqueous media, by the addition of an additive to the urea, wherein the additive comprises a carboxylic acid compound with the general formula XY—(Z)—COOH, in which Z is a saturated or unsaturated hydrocarbon with 1-25 carbon atoms and X and Y are selected from the group consisting of a hydrogen atom or a polar organic functional group, and in that the additive is added as a solution in a polar solvent to the urea granulates, which are subsequently dried.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: January 1, 2013
    Assignee: Yara International ASA
    Inventors: Erik Alexander Bijpost, Luc Vanmarcke, Jacobus Gerardus Korver, Ruud van Belzen
  • Publication number: 20120273986
    Abstract: Processes for producing nonwoven web products containing sub-micron fibers are provided, and more specifically processes for producing nonwoven web products having sub-micron fibers formed by fibrillation of polymer films are provided.
    Type: Application
    Filed: July 2, 2012
    Publication date: November 1, 2012
    Applicant: POLYMER GROUP, INC.
    Inventors: Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu
  • Publication number: 20120150135
    Abstract: An absorbent article comprising a chassis comprising a topsheet, a backsheet, an absorbent core disposed between the topsheet and the backsheet, and a pair of longitudinal barrier cuffs attached to the chassis. Each longitudinal cuff is formed of a web of material having first and second opposing surfaces and comprising a nonwoven component layer comprising fibers having a number-average diameter of less than about 1 micron, a mass-average diameter of less than about 1.5 microns, and a ratio of the mass-average diameter to the number-average diameter less than about 2. The absorbent article further comprises a hydrophobic coating disposed on at least one surface of the web of material.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 14, 2012
    Applicant: The Procter & Gamble Company
    Inventors: Johannson Jimmy Tee, JR., Olaf Erik Alexander Olaf, Calvin Hoi Wung Cheng, Rajeev Chhabra, DeeAnn Ling Nelson, Kemal Vatansever Catalan
  • Publication number: 20120137930
    Abstract: A composition and processes for the reduction of the tendency to baking, moisture absorption and/or dust formation of a granulate being susceptible therefore, such as fertilizers, minerals, ores, as well as to obtain stable coloring dispersions, density control of cokes and the reduction of foam in industrial processes, wherein synthetic polymers of fatty alkyl compounds, especially fatty acid esters and fatty-alcohols, fatty amines, fatty amides and fatty ethers, or distillation residues of the original monomers themselves, can be used, are disclosed. The distillation residues are preferably derived from the bottom fraction, obtained by distillation of the fraction being suitable as biodiesel during the biodiesel production process.
    Type: Application
    Filed: June 15, 2009
    Publication date: June 7, 2012
    Applicant: Holland Novochem B.V.
    Inventors: Erik Alexander Bijpost, Alexander Maslow, Jacobus Gerardus Korver
  • Publication number: 20120027058
    Abstract: An improved portable wireless impedance analyzer is provided. The impedance analyzer is comprised of: a wireless transceiver configured to receive user commands; a direct digital synthesizer operable to generate an injection signal in accordance with the input parameters; and a microcontroller interfaced with the wireless transceiver and the direct digital synthesizer. The microcontroller translates the user commands from the wireless transceiver into one or more input parameters for the direct digital synthesizer and communicates the input parameters to the direct digital synthesizer.
    Type: Application
    Filed: July 28, 2011
    Publication date: February 2, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Jerome P. Lynch, Erik Alexander Jarva, Sukhoon Pyo
  • Publication number: 20110275269
    Abstract: The present invention is directed to articles comprising nanofibers. The nanofibers, having a diameter of less than 1 micron, may comprise a significant number of the fibers in one layer of the web contained by the article. Preferably, the nanofibers are produced in a melt film fibrillation process. The articles include diapers, training pants, adult incontinence pads, catamenials products such as feminine care pads and pantiliners, tampons, personal cleansing articles, personal care articles, and personal care wipes including baby wipes, facial wipes, and feminine wipes.
    Type: Application
    Filed: July 21, 2011
    Publication date: November 10, 2011
    Inventors: Eric Bryan Bond, Rajeev Chhabra, Olaf Erik Alexander Isele, Han Xu
  • Publication number: 20110250413
    Abstract: Bond patterns for fibrous webs.
    Type: Application
    Filed: February 25, 2011
    Publication date: October 13, 2011
    Inventors: Jon Aaron LU, Olaf Erik Alexander Isele, Robert Haines Turner, Michael Timothy Looney, Khalid Qureshi
  • Publication number: 20110208487
    Abstract: Computer based models of processed fibrous materials.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 25, 2011
    Inventors: Michael Timothy LOONEY, Jean-Philippe Marie Autran, Olaf Erik Alexander Isele, Khalid Qureshi, Amber Diane Fischer
  • Publication number: 20110208486
    Abstract: Computer based models of fibrous materials.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 25, 2011
    Inventors: Khalid QURESHI, Michael Timothy Looney, Olaf Erik Alexander Isele, Amber Diane Fischer
  • Publication number: 20110196332
    Abstract: An absorbent article to be worn the lower torso is provided. The absorbent article comprises a chassis comprising a topsheet, a backsheet, an absorbent core, and a pair of longitudinal barrier cuffs attached to the chassis. Each of the longitudinal barrier cuffs comprises a web of material. The web of material comprises a first nonwoven component layer, and a second nonwoven component layer. Each of the longitudinal barrier cuffs comprises a longitudinal zone of attachment where each of the longitudinal barrier cuff attaches to the chassis, a longitudinal free edge, and a plurality of mechanical bonds disposed between the longitudinal zone of attachment and the free edge. The plurality of mechanical bonds attach one of a first portion of the web of material to a second portion of the web of material, and the web of material to a portion of the absorbent article.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 11, 2011
    Inventors: Calvin Hoi Wung Cheng, Rajeev Chhabra, Olaf Erik Alexander Isele, DeeAnn Ling Nelson
  • Publication number: 20110196327
    Abstract: The present disclosure, in part, relates generally to an absorbent article to be worn about the lower torso. The absorbent article comprises a chassis comprising a topsheet, a backsheet, an absorbent core disposed between the topsheet and the backsheet, and a pair of longitudinal barrier cuffs attached to the chassis. Each of the longitudinal barrier cuffs is formed of a web of material. The web of material comprises a first nonwoven component layer comprising fibers having an average diameter in the range of about 8 microns to about 30 microns, a second nonwoven component layer comprising fibers having an average diameter of less than about 1 micron, and a third nonwoven component layer comprising fibers having an average diameter in the range of about 8 microns to about 30 microns. The second nonwoven component layer is disposed intermediate the first nonwoven component layer and the third nonwoven component layer.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 11, 2011
    Inventors: Rajeev Chhabra, Calvin Hoi Wung Cheng, Olaf Erik Alexander Isele, DeeAnn Ling Nelson
  • Publication number: 20110196325
    Abstract: The present disclosure, in part, relates generally to an absorbent article to be worn about the lower torso. The absorbent article comprises a chassis comprising a topsheet, a backsheet, an absorbent core disposed between the topsheet and the backsheet, and a pair of longitudinal barrier cuffs attached to the chassis. Each of the longitudinal barrier cuffs is comprised of a web of material. The web of material has a low surface tension fluid strikethrough time of at least about 19 seconds, and an air permeability of at least about 20 m3/m2/min.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 11, 2011
    Inventors: Olaf Erik Alexander Isele, Calvin Hoi Wung Cheng, Rajeev Chhabra, DeeAnn Ling Nelson
  • Patent number: 7989369
    Abstract: The present invention is directed to articles comprising nanofibers. The nanofibers, having a diameter of less than 1 micron, may comprise a significant number of the fibers in one layer of the web contained by the article. Preferably, the nanofibers are produced in a melt film fibrillation process. The articles include diapers, training pants, adult incontinence pads, catamenials products such as feminine care pads and pantiliners, tampons, personal cleansing articles, personal care articles, and personal care wipes including baby wipes, facial wipes, and feminine wipes.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: August 2, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Eric Bryan Bond, Rajeev Chhabra, Olaf Erik Alexander Isele, Han Xu
  • Publication number: 20110147301
    Abstract: Nonwoven web products containing sub-micron fibers, and more specifically nonwoven web products having sub-micron fibers formed by fibrillation of polymer films, and nonwoven materials and articles incorporating them, and methods of producing these products.
    Type: Application
    Filed: March 7, 2011
    Publication date: June 23, 2011
    Applicant: POLYMER GROUP, INC.
    Inventors: Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu
  • Patent number: 7931457
    Abstract: An apparatus for producing sub-micron fibers, and more specifically an apparatus for effecting formation of sub-micron fibers by fibrillation of polymer films, and nonwoven materials and articles incorporating them.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: April 26, 2011
    Assignee: Polymer Group, Inc.
    Inventors: Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu
  • Publication number: 20100145295
    Abstract: A disposable absorbent article comprising a breathable polymeric film at least partially combined with a fibrous material to a laminated for being used as backsheet material with zones having different breathability.
    Type: Application
    Filed: January 25, 2010
    Publication date: June 10, 2010
    Inventors: Olaf Erik Alexander Isele, Holger Beruda
  • Publication number: 20100120314
    Abstract: An apparatus for producing sub-micron fibers, and more specifically an apparatus for effecting formation of sub-micron fibers by fibrillation of polymer films, and nonwoven materials and articles incorporating them.
    Type: Application
    Filed: November 23, 2009
    Publication date: May 13, 2010
    Applicant: POLYMER GROUP, INC.
    Inventors: Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu
  • Patent number: 7666343
    Abstract: A process and apparatus for producing sub-micron fibers, and more specifically a process and apparatus for effecting formation of sub-micron fibers by fibrillation of polymer films, and nonwoven materials and articles incorporating them.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: February 23, 2010
    Assignee: Polymer Group, Inc.
    Inventors: Michael H. Johnson, Timothy Krause, Michael W. Hayes, Rajeev Chhabra, Savas Aydore, Olaf Erik Alexander Isele, Han Xu
  • Patent number: 7576019
    Abstract: The present invention is directed to nonwoven webs and articles comprising nanofibers. The nanofibers are made from a polymer having a glass transition temperature about 25 C. The nanofibers, having a diameter of less than 1 micron, may comprise a significant number of the fibers in one layer of the web contained by the article. Preferably, the nanofibers are produced in a melt film fibrillation process. Articles include diapers, training pants, adult incontinence pads, catamenials products such as feminine care pads and pantiliners, tampons, personal cleansing articles, personal care articles, and personal care wipes including baby wipes, facial wipes, and feminine wipes.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: August 18, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Eric Bryan Bond, Rajeev Chhabra, Olaf Erik Alexander Isele, Han Xu