Patents by Inventor Pekka Somersalo

Pekka Somersalo 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).

  • Process for the preparation of adamantane derivatives
    Patent number: 7205432
    Abstract: The invention relates to a process for the preparation of 3-hydroxyadamantaneglyoxylic acid of the general formula (1) or a derivative or salt thereof. In the process, an 1-acyl derivative of adamantane having the formula (2): wherein R is a C1–C5 hydrocarbyl; CH2OH; CHO; COOH, is contacted with an oxidant under oxidizing conditions leading to the 3-hydroxyadamantaneglyoxylic acid (1) or the derivative or salt thereof.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: April 17, 2007
    Assignee: Kemfine Oy
    Inventors: Mathias Berner, Reijo Partanen, Auli Salakka, Pekka Somersalo
  • Process for the preparation of adamantane derivatives
    Publication number: 20060270870
    Abstract: The invention relates to a process for the preparation of 3-hydroxyadamantaneglyoxylic acid of the general formula (1) or a derivative or salt thereof. In the process, an 1-acyl derivative of adamantane having the formula (2): wherein R is a C1-C5 hydrocarbyl; CH2OH; CHO; COOH, is contacted with an oxidant under oxidizing conditions leading to the 3-hydroxyadamantaneglyoxylic acid (1) or the derivative or salt thereof.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Applicant: KEMFINE OY
    Inventors: Mathias Berner, Reijo Partanen, Auli Salakka, Pekka Somersalo
  • Process of selective desulfonation
    Patent number: 5741954
    Abstract: This invention relates to a process for the preparation of m-alkylphenols, particularly of 3-ethylphenol, from the mixture of alkylbenzenesulfonic acid isomers by selective desulfonation, removal of formed alkylbenzene and caustic fusion. In the present invention the inventive desulfonation is accomplished by addition of steam to the mixture of sulfonic acid in an excess in relation to the amount of evaporable water, simultaneously maintaining the temperature of the mixture above 160.degree. C. until the desired purity of isomers is obtained, and until the content of the sulfuric acid in the mixture is decreased below 40%.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: April 21, 1998
    Assignee: Kemira Agro Oy
    Inventors: Elias Suokas, Markku Niemi, Pekka Somersalo, Jouko Kujala