Patents Assigned to Molnlycke
  • Patent number: 6156022
    Abstract: An absorbent article such as a diaper, an incontinence protector or the like, comprises an elongated absorbent body, enclosed between a proximal liquid permeable cover layer and a distal liquid impermeable cover layer. In order to prevent feces from being transferred to a front, urine absorbing area of the article, there is provided a barrier means which comprises at least two, adjacent to each other, strip-shaped elastic elements extending transversely over the inside of the article. The elements in a flat state of the article are pretensioned in their longitudinal direction and at least in the use state of the article, extend backwards and out from the article, relative to a longitudinal edge of the strip-shaped elements facing towards the article.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: December 5, 2000
    Assignee: SCA Molnlycke AB
    Inventor: Gunilla Hedlund
  • Patent number: 6152907
    Abstract: An absorbent article having a front part (12), a rear part (14) and an intermediate crotch part (13), such as a diaper, an incontinence guard or like article. The article includes an absorbent body (1), a liquid-impermeable bottom sheet (7) joined to the absorbent body, and a top sheet (9) which is free from connection with the absorbent body over a large part of its surface and which lies proximal to the wearer's body when the article is worn, and which top sheet includes an opening (15) which extends from the rear article part into the crotch part, and elastic devices (24, 25) which are fastened to the top sheet in a stretched state and which when contracting from the stretched state cause the part of the top sheet that is not joined to the absorbent body to be distanced from the body. The top sheet (9) includes a further opening (16) which extends from the front part (12) into the crotch part (13).
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: November 28, 2000
    Assignee: Molnlycke AB
    Inventors: Urban Widlund, Anders Gustafsson, Anna Svernlov
  • Patent number: 6152908
    Abstract: An absorbent article having a front part (12), a rear part (14) and an intermediate crotch part (13), such as a diaper, an incontinence guard or like article. The article includes an absorbent body (1), a liquid-impermeable bottom sheet (7) joined to the absorbent body, and a top sheet (9) which is free from connection with the absorbent body over a large part of its surface and which lies proximal to the wearer's body when the article is worn, and which top sheet includes an opening (15) which extends from the rear article part into the crotch part, and elastic devices (24, 25) which are fastened to the top sheet in a stretched state and which when contracting from the stretched state cause the part of the top sheet that is not joined to the absorbent body to be distanced from the body. The top sheet (9) includes a further opening (16) which extends from the front part (12) into the crotch part (13).
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: November 28, 2000
    Assignee: Molnlycke AB
    Inventors: Urban Widlund, Anders Gustafsson, Anna Svernlov
  • Patent number: 6093870
    Abstract: An absorbent article, such as a diaper, an incontinence guard or a sanitary napkin, which includes a superabsorbent material in film or band form which has slots disposed therein. The film or band is stretched transversely to the longitudinal direction of the slots, such as to form openings.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: July 25, 2000
    Assignee: SCA Molnlycke AB
    Inventor: Anders Carlsson
  • Patent number: 6051747
    Abstract: A wound dressing (1) comprising a layer of absorbent foam material (2) which includes a pattern of holes (4). The holes open out on that side of the foam material which lies proximal to the wearer's skin when the dressing (1) is worn, and the layer of foam material is coated with a layer (3) of skin-adhering hydrophobic gel, wherein those end parts of the walls of the holes in the foam material that lie proximal to the wearer's skin when the dressing is worn are gel coated. A method of producing such a dressing is also disclosed.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: April 18, 2000
    Assignee: Molnlycke Health Care AB
    Inventors: Bengt W. Lindqvist, Stefan Areskoug, Thomas Fabo
  • Patent number: 6041928
    Abstract: An inner packaging for sterilized abdominal towels packed in an outer packaging includes an essentially rectangular sheet of material having pairs of mutually opposing first edges and mutually opposing second edges which are folded around a bundle of abdominal towels placed on the sheet such that a first part of the sheet which includes one of the first edges covers a substantial part of the abdominal towels, and a second part of the sheet which includes the second of the first edges covers part of the inwardly folded first part of the sheet, and such that those sections of each edge in the pair of second edges included in the first and the second inwardly folded sheet-parts lie substantially in line with remaining sections of the second edge concerned.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: March 28, 2000
    Assignee: Molnlycke Health Care AB
    Inventors: Erkki Jousinen, Lennart Nilsson, Ulf Johannisson, Staffan Kuse
  • Patent number: 6040492
    Abstract: A method of fastening a liquid-impervious sheet (7) to a wound pad (5) that is comprised of an elastic, hydrophilic material and that will expand in all directions when absorbing fluid. The pad (5) is stretched to a given extent both longitudinally and transversally in the plane of the pad and a flat liquid-impervious sheet (7) is then applied to the stretched pad and the load acting on the pad is removed. An absorbent dressing that includes an inventive wound pad (13) is also disclosed.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: March 21, 2000
    Assignee: Molnlycke Health Care AB
    Inventors: Bengt W. Lindquist, Tomas Fabo
  • Patent number: 6024732
    Abstract: A packaging for a sanitary napkin (1) or like article, wherein the outer surface of the sanitary napkin is at least partially adhesive and the napkin is folded so that the adhesive outer surface thereof faces towards the packaging material. The packaging material presents a relatively small surface area for contact with the outer surface of the sanitary napkin.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: February 15, 2000
    Assignee: SCA Molnlycke AB
    Inventor: Ann Samuelsson
  • Patent number: 6020453
    Abstract: Surface material for an absorbent article, wherein the material includes a surface layer which excretes lactic acid and/or an acid physiologically acceptable derivative thereof when the surface layer is immersed in a water volume, the weight ratio between surface layer and water volume being 1:100, in an amount such that the lactic acid and/or derivative excreted within a time period of at most 20 hours will impart a pH of at most 3.0 to the water volume.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: February 1, 2000
    Assignee: SCA Molnlycke Products AB
    Inventors: Bjorn Larsson, Erik Lagerstrom
  • Patent number: 6000102
    Abstract: An apparatus for air-laying of a material in the form of fibers or granules onto a running band. The apparatus includes at least one delimited space arranged at a first surface on an at least partially air-permeable endless running band. A vacuum exists in the space during operation and the band runs successively over the space. This takes place concurrently with air being sucked through the band into the space. At least two rotatable support elements are placed in the space in order to counteract down-bending of the running band. The support elements have a rotational direction generally coinciding with the running direction of the band.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: December 14, 1999
    Assignee: SCA Molnlycke AB
    Inventor: Claes Lychou
  • Patent number: 5976665
    Abstract: The present invention relates to a liquid-permeable casing sheet (1) for absorbent sanitary articles, such as sanitary napkins, incontinence guards and diapers. According to the invention, the casing sheet (1) includes a first layer (2) which is corrugated across at least a central part of its surface so as to provide a row of mutually parallel waves having wave crests (3) and wave troughs (4), wherein the wave crests form an article contact surface with the wearer's body when the article is in use. The casing sheet also includes rows of through-penetrating openings (6) which extend perpendicularly to the corrugations or waves and each of which opening passes through a wave crest (3). The invention also relates to a method for producing such a casing sheet.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: November 2, 1999
    Assignee: SCA Molnlycke AB
    Inventor: Roy Hansson
  • Patent number: 5961506
    Abstract: An absorbent body for use in an absorbent product such as a diaper, incontinence pad, sanitary napkin or the like and which comprises a liquid acquisition portion and a liquid storage portion adjacent thereto. The liquid acquisition portion has a cover layer which covers at least substantial portions of the liquid storage portion and at least one portion which is located at the assumed wetting area of the absorbent body and extends into the underlying liquid storage portion. The material in the liquid acquisition portion has a mean pore size which is greater than the mean pore size of the liquid storage portion. The absorbent body has a high instantaneous absorption, even upon repeated wetting and a low rewetting.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: October 5, 1999
    Assignee: Molnlycke AB
    Inventors: Ted Guidotti, Christina Steger, Urban Widlund, Eje Osterdahl
  • Patent number: 5941863
    Abstract: An absorbent article which includes a liquid-permeable outer sheet (1) disposed on a first surface of the article, a liquid-impermeable outer sheet (2) disposed on a second surface of the article, and an absorbent body (3) which is enclosed between the two casing sheets and which includes a receiving space (24) for taking-up body liquid, wherein the space is comprised of at least one cavity or region of lower density than the density of a part of the absorbent body (3) adjacent the receiving space (24) and located generally in the same plane. The article is mainly characterized in that the receiving space (24) is disposed in a storage layer (19) in the absorbent body (3), and in that parts (20,125) of the storage layer (19) adjacent the receiving space (24) include a material which when wetted increases in volume in a direction generally perpendicular to the first surface of the article, whereby the size of the receiving space (24) is also increased in this direction as a result of wetting the article.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: August 24, 1999
    Assignee: SCA Molnlycke AB
    Inventors: Ted Guidotti, Anette Buschka, Anders Gustafsson, Urban Widlund
  • Patent number: 5935682
    Abstract: A facing sheet (10) for absorbent articles is disclosed in the form of a laminate made up of at least a first layer (12) and a second layer (14). The first layer is intended to face a wearer when the absorbent article is in use and presents a plurality of through holes (16) delimited by an upper perimeter (18) and a lower perimeter (20) to thereby permit liquid to migrate through to the second layer (14). The second layer presents first depressions (22) which are arranged such that the lower perimeter (20) of each hole in the first layer (12) is aligned with an associated depression in the second layer (14). The invention further relates to a method which may be used to produce such a facing sheet.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: August 10, 1999
    Assignee: SCA Molnlycke AB
    Inventor: Leif Wallstrom
  • Patent number: 5928211
    Abstract: A method of elastifying a non-woven or plastic jacket of a pants-type article in its unassembled hour-glass form, arranged end-to-end in a longitudinal web, includes the steps of stretching a web length of elastic net, film or elastomeric non-woven material, which is rectilinear in its unstretched state, transversely but not longitudinally at the two end portions (113) which will form the waist, stretching the length of elastic net, film or elastomeric non-woven material longitudinally but not transversely at the intermediate crotch portion (14) therebetween, whereby the net or film will naturally assume the desired hour-glass shape of the jacket to be elastified, then bonding the stretched net or film in its hour-glass shape to the jacket (5).
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: July 27, 1999
    Assignee: SCA Molnlycke AB
    Inventors: Anders Gustafsson, Urban Widlund
  • Patent number: 5919178
    Abstract: A method for producing an absorbent structure intended for use in an absorbent article, such as a sanitary napkin, incontinence guard, diaper, wherein the absorbent structure is produced by laying a layer of essentially superabsorbent material between two layers of defibered and moisturized cellulose pulp or tissue, whereafter the composite structure is calendared between one or more pairs of heated rolls, wherewith the layer of superabsorbent material binds in itself and forms a stable layer, which binds to the surrounding cellulose pulp layers or tissue layers. The absorbent structure exhibits excellent absorption properties and can be made very thin. The structure can be manufactured without superabsorbent material being spread around the manufacturing machine during the production process, or escaping from the finished absorbent article when packaging, transporting or using the article.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: July 6, 1999
    Assignee: SCA Molnlycke AB
    Inventor: Urban Widlund
  • Patent number: 5913406
    Abstract: The present invention relates to a plastic surgical coat. According to the invention, the coat is comprised at least partially of a plastic material having a pattern of projections which extend out from the inside of the coat to facilitate air circulation through a space between an interior surface of the coat and the body of the wearer.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: June 22, 1999
    Assignee: Molnlycke Health Care AB
    Inventors: Kristina Lofgren, Tomas Billgren
  • Patent number: 5904674
    Abstract: A disposable diaper with stretchable longitudinal seals. The diaper includes an absorbent pad between a liquid-tight outer backing sheet and a liquid-pervious inner surface sheet including an elongate opening. Two first longitudinal folds extend over the length of the diaper on either side of the longitudinal opening so that each fold defines a closed sleeve including a stretched resilient member. At least two additional longitudinal folds extend over the length of the diaper and are arranged between the first longitudinal folds and a longitudinal region in which the surface sheet is attached to the diaper.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: May 18, 1999
    Assignee: SCA Molnlycke
    Inventor: Emmanuel Bonjour
  • Patent number: 5897544
    Abstract: The invention relates to an absorbent article, such as diaper, an incontinence protector or the like. In order to prevent urine from being mixed with faeces in the rear area of the article, an essentially liquid impermeable membrane is laid between an inner cover layer and an absorbent layer laying outside of it. The article has an opening to a pocket lying outside the membrane to make possible transport of urine from a front wetting area of the article to a rear area of the absorbent body which lies outside the membrane.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: April 27, 1999
    Assignee: SCA Molnlycke AB
    Inventor: Peter Ronnberg
  • Patent number: D408912
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: April 27, 1999
    Assignee: SCA Molnlycke AB
    Inventors: Kjell-.ANG.ke Kopp, Maria Andersson, Per Hogberg