Patents by Inventor Madeleine Pehrson

Madeleine Pehrson 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).

  • Absorbent articles comprising acidic cellulosic fibers and an organic zinc salt
    Patent number: 8748690
    Abstract: An absorbent article, such as a diaper, panty diaper, sanitary napkin or incontinence device includes a liquid-permeable topsheet, a backsheet and an absorbent core enclosed between the liquid-permeable topsheet and the backsheet. The absorbent core includes acidic fluff pulp having a pH of 5.5 or less and an organic zinc salt, in particular zinc ricinoleate. The combination of organic zinc salt and acidic fluff pulp exerts a synergetic effect in the suppression of ammonia.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: June 10, 2014
    Assignee: SCA Hygiene Products AB
    Inventors: Jan Wästlund-Karlsson, Jan Petrusson, Madeleine Pehrson, Åsa Lindström, Linus Fredlinger
  • ABSORBENT ARTICLES COMPRISING ACIDIC CELLULOSIC FIBERS AND AN ORGANIC ZINC SALT
    Publication number: 20110015596
    Abstract: An absorbent article, such as a diaper, panty diaper, sanitary napkin or incontinence device includes a liquid-permeable topsheet, a backsheet and an absorbent core enclosed between the liquid-permeable topsheet and the backsheet. The absorbent core includes acidic fluff pulp having a pH of 5.5 or less and an organic zinc salt, in particular zinc ricinoleate. The combination of organic zinc salt and acidic fluff pulp exerts a synergetic effect in the suppression of ammonia.
    Type: Application
    Filed: November 17, 2006
    Publication date: January 20, 2011
    Applicant: SCA Hygiene Products AB
    Inventors: Jan Wästlund-Karlsson, Jan Petrusson, Madeleine Pehrson, Åsa Lindström, Linus Fredlinger
  • Absorbent article comprising an absorbent structure
    Patent number: 7235708
    Abstract: The invention relates to an absorbent article, such as a diaper, an incontinence guard, a sanitary napkin or the like, including a liquid-permeable upper surface and an absorbent structure exhibiting a planar extension. The absorbent structure includes an acquisition layer and at least one storage layer. The acquisition layer has a plurality of fragments of a liquid-absorbing, open-celled, polyacrylate-based foam material, and each fragment exhibits a planar extension having a transversal direction, a longitudinal direction, and a thickness direction extending perpendicularly to the planar extension. The width in the transversal direction of each fragment in a dry condition does not exceed 10 millimeters, and the total area of the fragments in the planar extension is lower than the area of the absorbent structure in the planar extension.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: June 26, 2007
    Assignee: SCA Hygiene Products AB
    Inventors: Ted Guidotti, Ing-Britt Magnusson, Madeleine Pehrson
  • Absorbent article comprising an absorbent structure
    Publication number: 20040193129
    Abstract: The invention relates to an absorbent article, such as a diaper, an incontinence guard, a sanitary napkin or the like, including a liquid-permeable upper surface and an absorbent structure exhibiting a planar extension. The absorbent structure includes an acquisition layer and at least one storage layer. The acquisition layer has a plurality of fragments of a liquid-absorbing, open-celled, polyacrylate-based foam material, and each fragment exhibits a planar extension having a transversal direction, a longitudinal direction, and a thickness direction extending perpendicularly to the planar extension. The width in the transversal direction of each fragment in a dry condition does not exceed 10 millimeters, and the total area of the fragments in the planar extension is lower than the area of the absorbent structure in the planar extension.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 30, 2004
    Applicant: SCA Hygiene Products AB
    Inventors: Ted Guidotti, Ing-Britt Magnusson, Madeleine Pehrson