Patents by Inventor Ingmar Christensson

Ingmar Christensson 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).

  • Packaging container laminate possessing fat resistance properties
    Patent number: 5520970
    Abstract: A packaging laminate for a liquid-tight, configurationally stable packaging container possessing good fat resistance properties.The packaging laminate (10) has a core layer (11) of paper or paperboard and outer liquid-tight films or coatings (12 and 13) of thermoplastic, preferably polyethylene.Between the core layer (11 ) and the one outer thermoplastic film (12), there is a layer (14) of greaseproof paper which is bonded to the core layer (11) via an interjacent layer (15) of binder or sealant plastic in order to impart fat resistance to the packaging laminate.Between the core layer (11) and the second outer thermoplastic film (13), there is an aluminium foil (16) which is bonded to the core layer (11) via an interjacent layer (17) of binder or sealant plastic, whereby the packaging laminate is given excellent oxygen gas barrier properties.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: May 28, 1996
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Ingmar Christensson, Bengt Carlsson