Patents by Inventor Peter Hedenberg

Peter Hedenberg 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 product comprising at least one thermoplastic component to bond layers
    Patent number: 6462253
    Abstract: An absorbent product comprising a liquid-permeable casing layer (402), a liquid-barrier layer (413) and an absorption element (416) which is enclosed between the liquid-permeable casing layer (402) and the liquid-barrier layer (413), and a liquid-transfer layer (403) which is disposed between the liquid-permeable casing layer (402) and the absorption element (406). The envelope layer (402) is bonded in a pattern of distinct thermally produced bonds (405) to the liquid-transfer layer (403). The liquid-transfer layer (403) comprises 40-65% by weight network-creating function fibres which are substantially intact following the bonding-together of the envelope layer (402) and the liquid-transfer layer (403) and which have a fibre coarseness ranging from 6 denier to 12 denier and 35-60% by weight fibres comprising a weldable, thermoplastic component and having a fibre coarseness of at least 3 denier.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: October 8, 2002
    Assignee: SCA Hygiene Products AB
    Inventors: Ing-Britt Magnusson, Peter Hedenberg