Patents by Inventor Mikko Kalevi Karvo

Mikko Kalevi Karvo 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 a tall oil rosin ester with a low odor level
    Patent number: 5969092
    Abstract: The invention relates to a process for the preparation of a tall oil rosin ester with a low odor level, which process comprises an esterification step wherein a tall oil rosin is esterified with a polyol in order to form a product which contains a tall oil rosin ester, and evaporation is carried out on this product in order to remove odor components and other volatile components from the product, which evaporation is carried out in a short-path evaporator which has an evaporation surface and, in the vicinity of this surface, a condenser on which the vaporized components to be removed condense, whereupon a tall oil rosin ester with a low odor level is recovered from the evaporator.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: October 19, 1999
    Assignee: Arizona Chemical Oy
    Inventor: Mikko Kalevi Karvo
  • Adhesive agent for adhering an object to its base
    Patent number: 5718751
    Abstract: The invention relates to an adhesive agent for adhering an object produced in several stages to its base for the duration of at least one process step. According to the invention, the adhesive agent contains 20-50 parts by weight of modified tall oil rosin with an acid value within the region 115-145, and 48-80 parts by weight of at least one solvent, so that the glass transition temperature achieved for the adhesive agent is in the area 10.degree.-18.degree. C.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: February 17, 1998
    Assignee: Okmetic Oy
    Inventors: Jari Tapio Laakkonen, Jukka Juhani Suomalainen, Mikko Kalevi Karvo, Rauno Juha Ensio Logren