Patents by Inventor Maria Fernkvist

Maria Fernkvist 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: 11672709
    Abstract: Absorbent product includes a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product. The nonwoven material includes non-absorbent and/or absorbent fibres. The fibres, at least on a surface arranged to be in contact with skin of a user during use of the absorbent product, have a coarseness of from 0.1 to 10 dtex, or from 0.5 to 7 dtex. The fibres and/or the nonwoven material is coated with a lubricating coating composition suitable for use in absorbent and/or hygiene products at least on a surface arranged to be in contact with skin of a user during use of the absorbent product. By the product including the nonwoven, wet friction can be reduced between the nonwoven and the skin of the user.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: June 13, 2023
    Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAG
    Inventors: Maria Fernkvist, Shabira Abbas, Anna Nihlstrand
  • Publication number: 20180028372
    Abstract: Absorbent product includes a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product. The nonwoven material includes non-absorbent and/or absorbent fibres. The fibres, at least on a surface arranged to be in contact with skin of a user during use of the absorbent product, have a coarseness of from 0.1 to 10 dtex, or from 0.5 to 7 dtex. The fibres and/or the nonwoven material is coated with a lubricating coating composition suitable for use in absorbent and/or hygiene products at least on a surface arranged to be in contact with skin of a user during use of the absorbent product. By the product including the nonwoven, wet friction can be reduced between the nonwoven and the skin of the user.
    Type: Application
    Filed: January 14, 2015
    Publication date: February 1, 2018
    Applicant: SCA Hygiene Products AB
    Inventors: Maria FERNKVIST, Shabira ABBAS, Anna NIHLSTRAND
  • Publication number: 20170367906
    Abstract: An absorbent product includes a nonwoven material arranged to be in contact with skin of a user during use of the absorbent product. The nonwoven material includes, at least on a skin contacting surface, a mixture of non-absorbent and absorbent fibres. The absorbent fibres are present in an amount of 2-30% by weight, or about 2-10% by weight, based on the total weight of the fibres in the nonwoven material. The non-absorbent fibres have a coarseness of 1.8 to 10 dtex and the absorbent fibres have a coarseness of 1 to 10. Also disclosed is a use of a nonwoven material in an absorbent product to reduce wet friction between the nonwoven and skin of a user.
    Type: Application
    Filed: January 14, 2015
    Publication date: December 28, 2017
    Applicant: SCA Hygiene Products AB
    Inventors: Shabira ABBAS, Maria FERNKVIST, Anna NIHLSTRAND
  • Patent number: 9402772
    Abstract: An absorbent article includes a breathable backsheet material layer. At least a part of the layer includes a polymeric material exhibiting a discontinuous change in free volume in response to any of the following conditions or variables: liquid contact, the presence of certain ions, temperature and/or pH. One example of such polymeric materials is side chain liquid crystalline polymers which are able to undergo a phase transition between an isotropic phase and a nematic phase. The discontinuous change in free volume involves an abrupt change of the permeability of the breathable material layer.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: August 2, 2016
    Assignee: SCA HYGIENE PRODUCTS AB
    Inventors: Maria Fernkvist, Ingrid Gustafson, Charlotta Hansson
  • Patent number: 8669412
    Abstract: A method for manufacturing a laminated structure for use in an absorbent article such as a diaper, a sanitary napkin, a panty liner, an incontinence pad or similar and being defined by a plurality of material layers comprising at least a first layer which is liquid-permeable, a second layer constituting an absorbent core and a third layer, each of the layers being formed of a material having a certain pore radius. The method includes bonding together the material layers by means of at least two ultrasonic welding steps; and providing an ultrasonic welding pattern for each of the welding steps, each of the welding patterns being defined by a plurality of bonding sites. The method includes providing the welding steps for forming generally the entire absorbent article; and selecting the welding patterns in a manner so that at least the entire laminated structure has a multiple pore radius.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: March 11, 2014
    Assignee: SCA Hygiene Products AB
    Inventors: Maria Fernkvist, Maryam Tondkar
  • Publication number: 20110004178
    Abstract: A method for manufacturing a laminated structure for use in an absorbent article such as a diaper, a sanitary napkin, a panty liner, an incontinence pad or similar and being defined by a plurality of material layers comprising at least a first layer which is liquid-permeable, a second layer constituting an absorbent core and a third layer, each of the layers being formed of a material having a certain pore radius. The method includes bonding together the material layers by means of at least two ultrasonic welding steps; and providing an ultrasonic welding pattern for each of the welding steps, each of the welding patterns being defined by a plurality of bonding sites. The method includes providing the welding steps for forming generally the entire absorbent article; and selecting the welding patterns in a manner so that at least the entire laminated structure has a multiple pore radius.
    Type: Application
    Filed: April 18, 2008
    Publication date: January 6, 2011
    Applicant: SCA Hygiene Products AB
    Inventors: Maria Fernkvist, Maryam Tondkar
  • Publication number: 20100305536
    Abstract: The invention relates to an absorbent structure (3) for use in an absorbent article (1) and being defined by an airlaid material structure (3) being formed by a plurality of layers (3a; 3b; 3c; 3d) which are interposed between a liquid-permeable top sheet (2) and an absorbent core (4), said absorbent article (1) also comprising a backsheet (5) being of liquid-impermeable material. According to the invention, the absorbent structure (3) comprises a first layer (3a) having resilient synthetic fibers of at least approximately 5 dtex; that the absorbent structure (3) comprises a second layer (3b) having superabsorbent particles generally arranged as a distinct layer as opposed to being integrated within any other material of said absorbent structure (3); and that the absorbent structure (3) also comprises a treated fluff material having hydrophilic properties.
    Type: Application
    Filed: July 6, 2007
    Publication date: December 2, 2010
    Applicant: SCA Hygiene Products AB
    Inventors: Maria Fernkvist, Anna Nihlstrand, Maryam Tondkar, Shadi Ståhl, Malin Gullholm
  • Publication number: 20100042062
    Abstract: An absorbent article includes a breathable backsheet material layer. At least a part of the layer includes a polymeric material exhibiting a discontinuous change in free volume in response to any of the following conditions or variables: liquid contact, the presence of certain ions, temperature and/or pH. One example of such polymeric materials is side chain liquid crystalline polymers which are able to undergo a phase transition between an isotropic phase and a nematic phase. The discontinuous change in free volume involves an abrupt change of the permeability of the breathable material layer.
    Type: Application
    Filed: December 7, 2007
    Publication date: February 18, 2010
    Applicant: SCA Hygiene Products AB
    Inventors: Maria Fernkvist, Ingrid Gustafson, Charlotta Hansson
  • Publication number: 20080300563
    Abstract: The invention concerns an absorbent article such as a diaper, an incontinence product, a sanitary napkin, a panty liner or the like, wherein one or several parts (103,203: 104,204: 105,205) of said article comprise elastic means (116,216: 117,217; 119,219) which hold a skincare agent in their structure.
    Type: Application
    Filed: December 23, 2005
    Publication date: December 4, 2008
    Applicant: SCA Hygiene Products AB
    Inventors: Carolyn Berland, Maria Fernkvist, Ingrid Gustafson
  • Patent number: 6642431
    Abstract: An absorbent, porous structure (4), intended for use in an absorbent article, wherein the structure (4) exhibits a first region (19), primarily consisting of a first material, which stands in direct connection with a second region (20), primarily conssisting of a second material. The receding wetting angle &thgr;r is larger for the first material than for the second material, whereby liquid transport between the two regions (19, 20) takes place in a direction from the first region (19) to the second region (20), at least when the porous structure (4) is wet.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: November 4, 2003
    Assignee: SCA Hygiene Products AB
    Inventors: Fredrik Gellerstedt, Thami Chihani, Maria Fernkvist
  • Patent number: 6398769
    Abstract: The invention relates to an absorption material (50; 60) comprising a carrier material exhibiting a coating (51; 61) of a thermosensitive polymer with a cloud point at a temperature in the vicinity of and somewhat below the body temperature of a healthy human being. The absorption properties of the polymer change at the cloud point, so that the polymer substantially lacks absorption capacity at a first temperature on one side of the cloud point but exhibits good absorption properties at a second temperature on the other side of the cloud point. Furthermore, the invention includes an absorbent article such as a diaper, an incontinence protector, a sanitary napkin, or the like, having an absorption body comprising an absorption material coated with a thermosensitive polymer.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: June 4, 2002
    Assignee: SCA Hygiene Products AB
    Inventors: Maria Fernkvist, Thami Chihani