Patents by Inventor ROY DOPPEN

ROY DOPPEN 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 to prepare a solid composition of an amino acid diacetic acid
    Patent number: 10836709
    Abstract: A process for the preparation of a solid composition of an amino acid diacetic acid compound wherein the amino acid diacetic acid compound is methyl glycine-N,N-diacetic acid or a salt thereof, or glutamic N,N-diacetic acid or a derivative thereof, as well as the product obtained by such process are disclosed. The process includes feeding a saturated or oversaturated aqueous composition of the amino acid diacetic acid compound in an aqueous solvent to a drum dryer, wherein the aqueous composition is fed to the drum surface with a layer thickness of from about 0.1 to about 10 mm, the drum has a surface temperature of from about 80 to about 180° C., and the drum operates at a tangential speed of from about 0.1 to about 100 m/min. The method further includes removing the mass from the drum before a full revolution of the drum.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: November 17, 2020
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Paulus Johannes Cornelis Van Haeren, Roy Doppen, Elwin Schomaker, Raymond Jean Cécile Vaessen, Marco Ypma, Stijn Oudenhoven, Martin Heus
  • PROCESS TO PREPARE A SOLID COMPOSITION OF AN AMINO ACID DIACETIC ACID
    Publication number: 20200131115
    Abstract: A process for the preparation of a solid composition of an amino acid diacetic acid compound wherein the amino acid diacetic acid compound is methyl glycine-N,N-diacetic acid or a salt thereof, or glutamic N,N-diacetic acid or a derivative thereof, as well as the product obtained by such process are disclosed. The process includes feeding a saturated or oversaturated aqueous composition of the amino acid diacetic acid compound in an aqueous solvent to a drum dryer, wherein the aqueous composition is fed to the drum surface with a layer thickness of from about 0.1 to about 10 mm, the drum has a surface temperature of from about 80 to about 180° C., and the drum operates at a tangential speed of from about 0.1 to about 100 m/min. The method further includes removing the mass from the drum before a full revolution of the drum.
    Type: Application
    Filed: July 3, 2018
    Publication date: April 30, 2020
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: PAULUS JOHANNES CORNELIS VAN HAEREN, ROY DOPPEN, ELWIN SCHOMAKER, RAYMOND JEAN CÉCILE VAESSEN, MARCO YPMA, STIJN OUDENHOVEN, MARTIN HEUS