Patents by Inventor Johannes G. H. M. Housmans

Johannes G. H. M. Housmans 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).

  • Patent number: 5905173
    Abstract: The invention relates to a process for decomposing a mixture containing cycloalkyl hydroperoxide with an aqueous phase containing alkali metal hydroxide where, besides the alkali metal hydroxide, there is also at least 10 wt. % of the aqueous phase of one or more alkali metal salts. The alkali metal salts are preferably alkali metal carbonates, or alkali metal salts of mono- and poly-carboxylic acids, with the carboxylic acid moiety containing 1-24 carbon atoms.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: May 18, 1999
    Assignee: DSM NV
    Inventors: Ubaldus F. Kragten, Henricus A.C. Baur, Johannes G.H.M. Housmans
  • Patent number: 5406001
    Abstract: The present invention relates to a method for the continuous preparation of a mixture of a cycloalkanone, a cycloalkanol and a cycloalkylhydroperoxide. In the method, a cycloalkane, corresponding to the cycloalkenone, cycloalkenol and cycloalkylhydroperoxide, is oxidized in a continuous process, with the aid of an oxygen-containing gas, in the absence of a metal catalyst, at a temperature of between 130.degree. C. and 200.degree. C. The oxidation is at least partly carried out in the presence of between 0.002 and 2 mmol of a phenolic compound per kg of reaction mixture (mmol/kg).
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: April 11, 1995
    Assignee: DSM N.V.
    Inventors: Johannes G. H. M. Housmans, Ubaldus F. Kragten