Patents by Inventor Seppo Sarasto

Seppo Sarasto 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 preparing tall oil
    Patent number: 6348566
    Abstract: The invention relates to a method for enhancing the cooking step in a tall oil preparation process comprising: a neutralization step in which soap is neutralied to form soap oil, and a cooking step in which soap oil is cooked with sulphuric acid to form tall oil, the soap oil obtained in the neutralization step being subjected to an intermediate treatment before the cooking step, the intermediate treatment comprising heating of the soap oil to release gases dissolved in and bound to the soap oil. The invention also relates to a method for preparing tall oil comprising the steps mentioned above.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: February 19, 2002
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Seppo Sarasto