Patents by Inventor Kalle Ekman

Kalle Ekman 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).

  • METHOD FOR MAKING CELLULOSE CARBAMATE
    Publication number: 20170145119
    Abstract: The present invention relates to a method for manufacturing cellulose carbamate which method comprises the following steps: providing a never-dried pulp, adding urea and mixing said pulp with said urea, mechanically treating said mixture, drying the mixture, and heating the relatively dry mixture thus providing a cellulose carbamate. The present invention also relates to a cellulose carbamate obtainable by said method, use of said cellulose carbamate and a dope comprising said cellulose carbamate.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 25, 2017
    Inventors: Heidi Saxell, Paula Rantamäki, Kalle Ekman
  • Method of making paper
    Patent number: 8449720
    Abstract: The invention relates to a method of making a paper or paper board, in which method cut pulp is prepared by cutting basic cellulosic fiber pulp at the consistency of at least 25% so that the average fiber length of the basic pulp is decreased by more than 25% and the SR number of the cut pulp is at most 20% higher than that of the basic pulp, and the cut pulp is used as a raw material in the preparation of a stock.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 28, 2013
    Assignee: Stora Enso Oyj
    Inventors: Kalle Ekman, Heini Eskola, Antti Korpela
  • METHOD OF MAKING PAPER
    Publication number: 20120090798
    Abstract: The invention relates to a method of making a paper or paper board, in which method cut pulp is prepared by cutting basic cellulosic fiber pulp at the consistency of at least 25% so that the average fiber length of the basic pulp is decreased by more than 25% and the SR number of the cut pulp is at most 20% higher than that of the basic pulp, and the cut pulp is used as a raw material in the preparation of a stock.
    Type: Application
    Filed: June 17, 2010
    Publication date: April 19, 2012
    Applicant: STORA ENSO OYJ
    Inventors: Kalle Ekman, Heini Eskola, Antti Korpela