Patents by Inventor Jorgen Dahlin

Jorgen Dahlin 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).

  • Process for recovering inorganic material from deinking sludge
    Publication number: 20040020616
    Abstract: A process for recovering inorganic material from a deinking sludge obtained as reject material in the recovery of recycled fiber from waste paper.
    Type: Application
    Filed: June 11, 2003
    Publication date: February 5, 2004
    Inventors: Boris Dahlblom, Jorgen Dahlin, Mats Erik Larsson, Erik Mattsson, Arne Sundkvist, Arnold Almqvist
  • Chemically modified wood
    Patent number: 5922420
    Abstract: A granulate of wood or some other cellulose-containing material, pieces or particles of said material being at least partially esterified with 10-50% of a dicarboxylic acid anhydride and then impregnated with 2-25% of a polyol, the granulate being stable in storage and being possible to hot press or hot form later. A method for preparing the granulate by esterification at 80-160.degree. C. and, subsequently, impregnation at 150.degree. C. at most. A method for manufacturing formed articles by hot pressing or hot forming of the granulate, without the presence of a formaldehyde-containing adhesive and preferably without the presence of any other type of adhesive.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: July 13, 1999
    Assignee: Stora Kopparbergs Bergslags AB
    Inventors: Jorgen Dahlin, Ulf Nyberg