Patents Assigned to Molnlycke
  • Patent number: 5674215
    Abstract: An absorbent article, particularly a diaper, has a central absorbent unit (1) which is comprised of an elongated absorbent body (2) enclosed between a liquid-permeable inner casing sheet (3) which lies proximal to the wearer in use, and a liquid-impermeable, outer casing sheet (4) which lies distal from the wearer in use. The absorbent unit is provided along its longitudinal edges (9) with liquid-impermeable folds (6) which are upstanding from the inner casing sheet and which form side-leakage barriers. The article has a side-flap (18) on each side of the absorbent unit (1). The side-flaps (18), optionally with associated edge (21, 23), are produced in the form of rectangular strips (10) completely separated from the absorbent unit (1) and are thereafter jointed thereto. A longitudinally extending edge-part (13) of each strip (10) is suitably folded double and the backwardly fold part (19) is joined to the outer casing sheet (3a, 4b or 4) of the absorbent unit (1)along a curved fastening line (21).
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: October 7, 1997
    Assignee: Molnlycke AB
    Inventor: Peter Ronnberg
  • Patent number: 5665191
    Abstract: The present invention relates to a method and to an arrangement for creating in a web (1) of sheet material a fold which includes at least one elastic thread (4). The web is placed on two mutually separated carrier elements (2, 3), and at least one prestretched elastic thread (4) is placed over the web in the space between the opposing edges of the carrier elements.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: September 9, 1997
    Assignee: SCA Molnlycke AB
    Inventors: Dan Johansson, Leidulf Indreb.o slashed.
  • Patent number: 5653702
    Abstract: An absorbent body in an absorbent article, such as a sanitary napkin, panty protector, incontinence guard, diaper or the like. The absorbent body includes a first layer, an admission layer (4), which comprises a mixture of 80-95% resilient fibres and 5-20% heat-actuable binding fibres, preferably bicomponent fibres, and a second layer, a storage and dispersion layer (5), which comprises a mixture of 45-90% absorbent fibres and 5-15% heat-actuable binding fibres, wherein the binding fibres are heat treated so as to bond together and to hold the fibre structures together in the first and second layers (4, 5), such that these layers will form a laminate that has a tensile strength of at least 2N/50 mm in a dry state. The absorbent body also has a high surface dryness and low rewetting tendency and exhibits good absorption properties.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: August 5, 1997
    Assignee: Molnlycke AB
    Inventors: Goran Brohammer, Berit Rosseland, Magnus Qvist, Berith Porso
  • Patent number: 5635201
    Abstract: A method and apparatus for manufacturing a wound dressing, and a wound dressing produced thereby. The upper surface of a perforated carrier material (2) is coated with a curable silicone mixture (3) and cold air is blown onto the underside of the coated carrier material. Heat is then applied to the silicone mixture until it has cured to a silicone gel.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: June 3, 1997
    Assignee: Molnlycke AB
    Inventor: Tomas Fabo
  • Patent number: 5634915
    Abstract: A method of producing an absorbent structure in an absorbent article includes the steps of compressing an air laid web of cellulose fibers into a dry-formed sheet having a first density of between 0.2-1.0 g/cm.sup.2 and mechanically softening the compressed sheet by a noncutting method to a second density, which is lower than the first density, whereby the sheet is delaminated so as to form a plurality of partially separated thin fiber layers, each of which layers exhibits a density which corresponds to the first density.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: June 3, 1997
    Assignee: Molnlycke AB
    Inventor: Eje Osterdahl
  • Patent number: 5609702
    Abstract: The present invention relates to a method for mutually bonding at least two moving continuous material webs of material (1,5) to form a laminate (12) which includes at least one puckered material layer. A first and second web (1,5) are advanced at different speeds (V.sub.1, V.sub.2) to a web bonding means (4) in which the webs are mutually bonded and the resultant laminate (12) is further advanced at the lower speed (V.sub.2). Because of the difference in speed between the two webs, that web (1) which moves at the higher speed (V.sub.1) at the web bonding moment is puckered while the other web (5) remains smooth. The invention also relates to an arrangement for mutually bonding two material webs (1,5) in accordance with the method, and to an absorbent article (17) which includes a liquid-receiving outer layer (20) which contains at least one puckered, first liquid-permeable layer (21) and at least one smooth, second liquid-permeable layer (22).
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: March 11, 1997
    Assignee: Molnlycke AB
    Inventor: Verner E. Andersen
  • Patent number: 5607546
    Abstract: An absorbent, chemithermomechanical pulp produced from lignocellulosic material with a wood yield above 88%, a low resin content <0.15%, a long fiber content above 70%, a short fiber content below 10% and a shive content below 3%. The method for producing the pulp comprises the steps of impregnating, preheating, defibering, and washing the material. The impregnation and preheating of the chips are effected in one and the same vessel over a combined time period of at most 2 minutes, particularly at most 1 minute, preferably at most 0.5 minutes; using a warm impregnating liquid having a temperature of at least 100.degree. C., suitably at least 130.degree. C. and preferably having essentially the same temperature as in the preheating process; and preheating the chips at a temperature of 150.degree.-175.degree. C., preferably 160.degree.-170.degree. C.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: March 4, 1997
    Assignee: Molnlycke AB
    Inventors: Hans H oglund, Roland B ack, Ove Danielsson, Bo Falk
  • Patent number: 5601921
    Abstract: Aluminum salt impregnated organic pulp fibers for use in absorption articles are disclosed. The fibers have an aluminum content of 3-100 g/kg based on the weight of dry pulp. The pulp fibers are in the form of fluff and, when disposed in a layer, exhibit increased absorption rates and improved dispersion of liquid in horizontal and vertical directions. The fibers, in the form of an aqueous suspension, are impregnated with aluminum salt in aqueous solution at a pH of 5-11, preferably 8.5-9.5 and most preferably at a pH of 9. Impregnation may optionally be carried out in the presence of a silicate.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: February 11, 1997
    Assignee: Molnlycke AB
    Inventor: Inger V. Eriksson
  • Patent number: 5582668
    Abstract: A method and an arrangement for mounting elastic elements (T) on an elongated, moving material web (M), in which an elastic element extends between two holder elements (H) which are moved in a given direction and which elastic element extends essentially at right angles to the movement direction of the holder elements. According to the invention, different points on an elastic element which are mutually displaced transversely in relation to the movement direction are moved at mutually different speeds in relation to one another, and the elastic element is fastened to the material web subsequent to having achieved given distances in the movement direction between the different points on the elastic element, as a result of the different movement speeds.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: December 10, 1996
    Assignee: Molnlycke AB
    Inventor: Robert Kling
  • Patent number: 5556393
    Abstract: An insert intended to be worn by a male incontinent and which, in use, is worn around the wearer's genitals, within an absorbent article, such as a diaper or an incontinence guard. The insert has a basin-like configuration and includes at least one opening (12) which enables liquid to flow through the insert, and elastic devices (4, 5) are disposed in the edge parts (6, 7) of the insert, such that, in use, the insert will retain its basin-like configuration and be held securely around the wearer's genitals.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: September 17, 1996
    Assignee: Molnlycke AB
    Inventor: Peter R onnberg
  • Patent number: 5549593
    Abstract: The combination of a absorbent article such as an incontinence protector, a diaper or the like, and a waist belt for supporting the absorbent article. The waist belt and absorbent article have coacting hook members and apertures thereon by which the diaper and the waist belt are releasably secured to each other.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: August 27, 1996
    Assignee: Molnlycke AB
    Inventors: Birgitta Ygge, Terje Vigmo
  • Patent number: 5546960
    Abstract: The present invention relates to a surgical drape includes an absorbent sheet (1) and a fluid-impermeable sheet (2) attached thereto. According to the invention, the fluid-impermeable sheet (2) is provided with projections (3) on that side which lies distal from the absorbent sheet (1).
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: August 20, 1996
    Assignee: Molnlycke AB
    Inventor: Tomas Billgren
  • Patent number: 5540922
    Abstract: An absorbent wound dressing having a layer of hydrophobic silicone gel (3) which is intended to lie against the wound surface when the dressing is worn. A layer of carrier material (2; 7) carries the gel layer and affords the requisite strength thereto. An absorbent body (5) is placed on that side of the carrier material and gel layer which lie distal from the wound surface in use. The carrier material and the gel layer have mutually coinciding penetrating perforations (4) at least within the region of the absorbent body. A fluid barrier layer (6) is provided on that side of the dressing which lies distal from the wound surface in use.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: July 30, 1996
    Assignee: Molnlycke AB
    Inventor: Tomas Fabo
  • Patent number: 5517832
    Abstract: A panty brief is made by flat knitting a front piece (1) and a back piece (1'), leg openings (8,9) being formed at a marginal edge zone (6) at the bottom of the panty brief. The marginal bottom edge zones (6) are partially made of soluble yarn (8) for forming larger stitches (19,20) and thereby a looser structure in the panty brief after dissolution of the yarn.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: May 21, 1996
    Assignees: Tytex A/S, Molnlycke AB
    Inventor: Johannes N. Kristensen
  • Patent number: 5498115
    Abstract: The present invention relates to a distributor for particulate material comprising a cylinder and a feeder screw mounted therein for conveying particulate material in the cylinder from an inlet to an outlet.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: March 12, 1996
    Assignee: Molnlycke AB
    Inventor: Robert Perneborn
  • Patent number: 5492759
    Abstract: Fibres which have an increased specific surface area and improved absorption properties, preferably intended for use in the form of fluff pulp in absorption articles such as diapers, incontinence guards, etc., in which the fibres present a porous layer of hydrophilic chemicals anchored on the fibre surface; a method of producing such fibres, their use in absorption articles and an absorption material which includes the fibres.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: February 20, 1996
    Assignee: Molnlycke AB
    Inventors: Inger V. Eriksson, Goran E. Annergren, Lars E. R. Wagberg
  • Patent number: 5486168
    Abstract: A male incontinence guard includes an inner, liquid permeable casing layer; an outer, liquid impermeable casing layer; an absorbent pad having a first end and enclosed between said layers so as to include a first side edge on one side of said pad and a second side edge on an opposite side of said pad; said absorbent pad narrows at the first end; a first elastic device attached in a prestretched state to the inner casing layer and extends from the first end along at least a part of said first side edge; and a second elastic device attached in a prestretched state to the inner casing layer and extends from the first end along at least a part of said second side edge; said elastic devices arranged such that contraction of said elastic devices causes said inner casing layer at the first end of said pad to take a concave shape and said outer casing layer at said first end of said pad to take a convex shape.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: January 23, 1996
    Assignee: Molnlycke AB
    Inventors: Bo Runeman, Peter Ronnberg
  • Patent number: 5486273
    Abstract: A method for imparting varying degrees of elasticity in different areas of a resilient material for disposable absorbent articles includes providing an elastic material and removing material from areas of the elastic material which are to be given a lesser degree of resilience than remaining areas. At the same time attached material parts are left in those areas of the elastic material from which material has been removed.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: January 23, 1996
    Assignee: Molnlycke AB
    Inventors: Urban Widlund, Roy Hansson
  • Patent number: D366112
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: January 9, 1996
    Assignee: Molnlycke Aktiebolag
    Inventors: Hans Tollin, Kenneth sterlin, Per Arfvidsson
  • Patent number: D373277
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: September 3, 1996
    Assignee: Molnlycke AB
    Inventor: Giorgetto Giugiaro