Patents by Inventor Mika Kapanen

Mika Kapanen 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).

  • 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