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).
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Patent number: 11672709Abstract: 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: GrantFiled: January 14, 2015Date of Patent: June 13, 2023Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Maria Fernkvist, Shabira Abbas, Anna Nihlstrand
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Publication number: 20180028372Abstract: 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: ApplicationFiled: January 14, 2015Publication date: February 1, 2018Applicant: SCA Hygiene Products ABInventors: Maria FERNKVIST, Shabira ABBAS, Anna NIHLSTRAND
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Publication number: 20170367906Abstract: 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: ApplicationFiled: January 14, 2015Publication date: December 28, 2017Applicant: SCA Hygiene Products ABInventors: Shabira ABBAS, Maria FERNKVIST, Anna NIHLSTRAND
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Patent number: 9402772Abstract: 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: GrantFiled: December 7, 2007Date of Patent: August 2, 2016Assignee: SCA HYGIENE PRODUCTS ABInventors: Maria Fernkvist, Ingrid Gustafson, Charlotta Hansson
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Patent number: 8669412Abstract: 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: GrantFiled: April 18, 2008Date of Patent: March 11, 2014Assignee: SCA Hygiene Products ABInventors: Maria Fernkvist, Maryam Tondkar
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Publication number: 20110004178Abstract: 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: ApplicationFiled: April 18, 2008Publication date: January 6, 2011Applicant: SCA Hygiene Products ABInventors: Maria Fernkvist, Maryam Tondkar
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Publication number: 20100305536Abstract: 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: ApplicationFiled: July 6, 2007Publication date: December 2, 2010Applicant: SCA Hygiene Products ABInventors: Maria Fernkvist, Anna Nihlstrand, Maryam Tondkar, Shadi Ståhl, Malin Gullholm
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Publication number: 20100042062Abstract: 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: ApplicationFiled: December 7, 2007Publication date: February 18, 2010Applicant: SCA Hygiene Products ABInventors: Maria Fernkvist, Ingrid Gustafson, Charlotta Hansson
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Publication number: 20080300563Abstract: 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: ApplicationFiled: December 23, 2005Publication date: December 4, 2008Applicant: SCA Hygiene Products ABInventors: Carolyn Berland, Maria Fernkvist, Ingrid Gustafson
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Patent number: 6642431Abstract: 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: GrantFiled: July 20, 1999Date of Patent: November 4, 2003Assignee: SCA Hygiene Products ABInventors: Fredrik Gellerstedt, Thami Chihani, Maria Fernkvist
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Patent number: 6398769Abstract: 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: GrantFiled: April 15, 1999Date of Patent: June 4, 2002Assignee: SCA Hygiene Products ABInventors: Maria Fernkvist, Thami Chihani