Patents by Inventor Raimo Rasimus

Raimo Rasimus 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).

  • Preparation of chemical pulp and xylose, utilizing a direct acid hydrolysis on the pulp
    Patent number: 6752902
    Abstract: The invention relates to a method of preparing chemical pulp and xylose by the use of alkaline or neutral cooking and post hydrolysis of the pulp by performing the post hydrolysis directly on the pulp by means of acid treatment. In the method of the invention, the xylan in the pulp is utilized as completely as possible, resulting in a good xylose yield and, simultaneously, acceptable characteristics for the pulp.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: June 22, 2004
    Assignee: Danisco Sweeteners Oy
    Inventors: Heikki Heikkilä, Mirja Lindroos, Jorma Sundquist, Seppo Kauliomäki, Raimo Rasimus
  • Preparation of chemical pulp and xylose, utilizing a direct acid hydrolysis on the pulp
    Publication number: 20030037892
    Abstract: The invention relates to a method of preparing chemical pulp and xylose by the use of alkaline or neutral cooking and post hydrolysis of the pulp by performing the post hydrolysis directly on the pulp by means of acid treatment. In the method of the invention, the xylan in the pulp is utilized as completely as possible, resulting in a good xylose yield and, simultaneously, acceptable characteristics for the pulp.
    Type: Application
    Filed: January 14, 2002
    Publication date: February 27, 2003
    Applicant: Danisco Sweeteners Oy
    Inventors: Heikki Heikkila, Mirja Lindroos, Jorma Sundquist, Seppo Kauliomaki, Raimo Rasimus
  • Method of washing of alkaline pulp by adding carbon dioxide to the pulp
    Patent number: 5429717
    Abstract: Method in the washing of alkaline, cellulosic pulp, for example sulphate pulp, CTMP and CMP pulp, the washing being effected in at least one stage. By an addition of carbon dioxide, there will be realized greatly reduced washing losses of, primarily, inorganic ions, as well as improved washing-out of substances which give rise to chemical oxygen demand (COD).
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: July 4, 1995
    Assignee: AGA Aktiebolag
    Inventors: Monica Bokstrom, Raimo Rasimus