Patents by Inventor Augustinus P. H. Schouteten

Augustinus P. H. Schouteten 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 reducing the aldehyde concentration in a mixture comprising cyclohexanone and one or more aldehydes
    Patent number: 7601245
    Abstract: The invention relates to a process for reducing the aldehyde concentration in a mixture comprising cyclohexanone and one or more aldehydes, said process comprising distilling said mixture in a distillation column in the presence of an alkaline compound, wherein in the bottom of the distillation column substantially no water is present.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: October 13, 2009
    Assignee: DSM IP Assets B.V.
    Inventors: Arno H Benneker, Augustinus P H Schouteten, Larry W Wyatt
  • Process for preparing cyanuric acid
    Patent number: 4174444
    Abstract: An improved process for the manufacture of cyanuric acid by heating a reaction solution of urea, biuret, or mixtures thereof, in a solvent and stripping the reaction solution with a stripping gas. The process recycles waste gas produced by the reaction solution as the stripping gas.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: November 13, 1979
    Assignee: Stamicarbon, B.V.
    Inventors: Marinus J. A. M. den Otter, Lambertus P. G. Hawinkels, Augustinus P. H. Schouteten
  • Process for the preparation of cyanuric acid
    Patent number: 4167631
    Abstract: An improved process for the manufacture of cyanuric acid by heating a reaction solution of urea, biuret or mixtures thereof in a solvent and stripping the reaction solution with an inert auxiliary stripping gas. The inert auxiliary stripping gas is characterized as having a boiling point which ranges between that of ammonia and the reaction temperature at the reaction pressure.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: September 11, 1979
    Assignee: Stamicarbon, B.V.
    Inventors: Augustinus P. H. Schouteten, Marinus J.A.M. Den Otter
  • Process for purifying cyanuric acid
    Patent number: 3994892
    Abstract: The process of the invention is directed to an improvement in purifying cyanuric acid which contains as a contaminant, an enclosed residue of a solvent used in the reaction mediums to produce cyanuric acid from urea, biuret or mixtures thereof. The process comprises suspending the impure cyanuric acid in an aqueous medium and stirring. As a result of the process, cyanuric acid is substantially freed from enclosed residues of contaminants solvents.
    Type: Grant
    Filed: October 29, 1975
    Date of Patent: November 30, 1976
    Assignee: Stamicarbon B.V.
    Inventors: Marinus J. A. M. Den Otter, Augustinus P. H. Schouteten, Lambertus P. G. Hawinkels
  • Process for the preparation of cyanuric acid
    Patent number: 3956299
    Abstract: An improved process for forming cyanuric acid wherein urea and/or biuret, dissolved in a solvent, are heated in the presence of a dissolved acid or a corresponding anhydride or ammonium salt to produce cyanuric acid so that byproducts ammeline and ammelide are produced in amounts no greater than 1 % by weight of the product.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: May 11, 1976
    Assignee: Stamicarbon B.V.
    Inventors: Marinus J. A. M. den Otter, Lambertus P. G. Hawinkels, Augustinus P. H. Schouteten