Patents by Inventor Charlotta Hanson

Charlotta Hanson 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 article having fluid flow control member
    Patent number: 9763837
    Abstract: An absorbent article, the absorbent article being a personal hygiene article, comprising a liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent core enclosed between the top sheet and the back sheet, and a fluid flow control member arranged between the top sheet and the backsheet, said fluid flow control member being of a nonwoven material comprising a three dimensional network of fibres, said fibres having a thickness of 200-700 ?m, said nonwoven material having a strain of max 50% at 5 kPa.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 19, 2017
    Assignee: SCA HYGIENE PRODUCTS AB
    Inventors: Charlotte Persson, Patrik Andersson, Kent Vartiainen, Charlotta Hanson, Britt-Marie Wiezell, Lori-Ann S. Prioleau, Thomas R. LaLiberte, Leigh E. Wood, Kerstin K. Ehlers, Peter P. Kitzer
  • ABSORBENT ARTICLE HAVING FLUID FLOW CONTROL MEMBER
    Publication number: 20130144241
    Abstract: An absorbent article, the absorbent article being a personal hygiene article, comprising a liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent core enclosed between the top sheet and the back sheet, and a fluid flow control member arranged between the top sheet and the backsheet, said fluid flow control member being of a nonwoven material comprising a three dimensional network of fibres, said fibres having a thickness of 200-700 ?m, said nonwoven material having a strain of max 50% at 5 kPa.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 6, 2013
    Applicant: SCA Hygiene Products AB
    Inventors: Charlotte Persson, Patrik Andersson, Kent Vartiainen, Charlotta Hanson, Britt-Marie Wiezell, Lori-Ann S. Prioleau, Thomas R. LaLiberte, Leigh E. Wood, Kerstin K. Ehlers, Peter P. Kitzer
  • ABSORBENT ARTICLE COMPRISING A COMPOSITE MATERIAL
    Publication number: 20120302440
    Abstract: An absorbent article including a freeze dried composite material. The freeze dried composite material includes cellulosic pulp (e.g. CTMP) and an absorbent material. The absorbent material includes microfibrillated cellulose (MFC) with a specified content of carboxylate groups.
    Type: Application
    Filed: January 18, 2011
    Publication date: November 29, 2012
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Hans Theliander, Fredrik Wernersson, Harald Brelid, Kristoffer Lund, Charlotta Hanson, Ingrid Gustafson, Torgny Falk
  • Claylinked polymer gels in new physical forms, methods for their formation and uses thereof
    Patent number: 8273817
    Abstract: A fiber, film or foam includes a plasticizer and a charged claylinked gel (A). The charged claylinked gel (A) includes clay nanoparticles (C) which are crosslinked by a charged polymer (A?) such that any particular clay nanoparticle is linked to at least one other clay nanoparticle by the charged polymer (A?). Methods for producing the fibers, film and foam are also provided.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: September 25, 2012
    Assignee: SCA Hygiene Products AB
    Inventors: Ingrid Gustafson, Anna Körner, Shabira Abbas, Maria Fanto, Rozalia Bitis, Charlotta Hanson
  • CLAYLINKED POLYMER GELS IN NEW PHYSICAL FORMS, METHODS FOR THEIR FORMATION AND USES THEREOF
    Publication number: 20100210746
    Abstract: A fibre, film or foam includes a plasticizer and a charged claylinked gel (A). The charged claylinked gel (A) includes clay nanoparticles (C) which are crosslinked by a charged polymer (A?) such that any particular clay nanoparticle is linked to at least one other clay nanoparticle by the charged polymer (A?). Methods for producing the fibres, film and foam are also provided.
    Type: Application
    Filed: September 25, 2008
    Publication date: August 19, 2010
    Applicant: SCA HYGIENE PRODUCTS
    Inventors: Ingrid Gustafson, Anna Körner, Shabira Abbas, Maria Fanto, Rozalia Bitis, Charlotta Hanson
  • Absorbent structure and absorbent article comprising the absorbent structure
    Publication number: 20070038196
    Abstract: An absorbent structure, for use in a diaper, an incontinence pad, a sanitary article or the like, has at least one absorbent layer including fluff pulp and superabsorbent particles. The average absorption capacity per superabsorbent particle in the absorbent layer is greater than 8.0 mg sodium chloride solution, and the number of superabsorbent particles per cm3 of the absorbent layer is smaller than 1100. A diaper, an incontinence pad, a sanitary article or the like includes this absorbent structure.
    Type: Application
    Filed: July 7, 2006
    Publication date: February 15, 2007
    Applicant: SCA Hygiene Products AB
    Inventors: Karl Karlsson, Eje Osterdahl, Charlotta Hanson
  • Absorbent structure and absorbent article comprising the absorbent structure
    Publication number: 20050165374
    Abstract: An absorbent structure, for use in a diaper, an incontinence pad, a sanitary article or the like, has at least one absorbent layer including fluff pulp and superabsorbent particles. The average absorption capacity per superabsorbent particle in the absorbent layer is greater than 8.0 mg sodium chloride solution, and the number of superabsorbent particles per cm3 of the absorbent layer is smaller than 1100. A diaper, an incontinence pad, a sanitary article or the like includes this absorbent structure.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 28, 2005
    Applicant: SCA Hygiene Products AB
    Inventors: Karl Karlsson, Eje Osterdahl, Charlotta Hanson
  • Method and arrangement for reburning lime sludge in a fluidizing bed
    Patent number: 5644996
    Abstract: The invention relates to a method for lime sludge reburning in a fluidizing bed. The method is characterized in that a cooling medium (10) is injected immediately above the fluidizing bed (3). The invention also comprises means for performing the method. The arrangement which is known per se is provided with an injection device (10) for a cooling medium above the fluidizing bed (3).
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: July 8, 1997
    Assignee: Kvaerner Pulping Technologies AB
    Inventors: Martin Wimby, Charlotta Hanson