Patents by Inventor Raija Savolainen

Raija Savolainen 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 of making sized paper, a sized paper grade, and a paper size
    Patent number: 6749722
    Abstract: The present invention relates to a method of manufacturing a paper of multi-color ink-jet printable grade. A proper hydrophicity for the paper is secured by using an 2-oxetanone size in the appropriate sizing steps. The size is made from non-branched and branched-chain fatty acids having main chain comprising 6-22 carbons linked with each other by saturated bonds.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: June 15, 2004
    Assignee: Raisio Chemicals Ltd.
    Inventors: Olof Malmström, Markku Nurminen, Raija Savolainen, Ari Teijo, Claes Zetter
  • Method of making sized paper, a sized paper grade, and a paper size
    Publication number: 20010054491
    Abstract: The present invention relates to a method of manufacturing a paper of multi-colour ink-jet printable grade. A proper hydrophicity for the paper is secured by using an 2-oxetanone size in the appropriate sizing steps. The size is made from non-branched and branched-chain fatty acids having main chain comprising 6-22 carbons linked with each other by saturated bonds.
    Type: Application
    Filed: July 2, 2001
    Publication date: December 27, 2001
    Inventors: Olof Malmstrom, Markku Nurminen, Raija Savolainen, Ari Teijo, Claes Zetter
  • Alkenyl substituted cyclic carboxyl acid anhydrides and their application in hydrophobic paper sizing
    Patent number: 5939562
    Abstract: The invention relates to alkene-substituted cyclic carboxylic acid anhydrides which are formed from the reaction of a cyclic carboxylic acid anhydride, including succinic anhydride, and an olefin blend. The olefin blend is made up of internal linear and branched olefins and linear and/or branched .alpha.-olefins, in which blend the olefins contain 13-25 carbon atoms. The alkene-substituted cyclic carboxylic acid anhydride can be used for the preparation of an ASA sizing agent suitable for paper sizing.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: August 17, 1999
    Assignee: NESTE OY
    Inventors: Mika Kapanen, Salme Koskimies, Jaana Rantanen, Erkki Halme, Raija Savolainen