Patents by Inventor Wim Jacob GROOT

Wim Jacob GROOT 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 manufacturing lactide
    Patent number: 10399956
    Abstract: A method for producing lactide including the steps of: providing a solution of lactic acid in a volatile organic solvent, subjecting the solution to an evaporation step to remove volatile organic solvent and water, resulting in the formation of a composition including lactic acid oligomer, adding catalyst to the composition including lactic acid oligomer, and bringing the mixture to reaction conditions, to form lactide. It has been found that the process results in the efficient production of lactide with a high production rate and a good product quality.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: September 3, 2019
    Assignee: PURAC BIOCHEM B.V.
    Inventors: Wim Jacob Groot, Jan Van Krieken, Tanja Dekic Zivkovic, Andre Banier De Haan
  • METHOD FOR MANUFACTURING LACTIDE
    Publication number: 20180030025
    Abstract: A method for producing lactide including the steps of: providing a solution of lactic acid in a volatile organic solvent, subjecting the solution to an evaporation step to remove volatile organic solvent and water, resulting in the formation of a composition including lactic acid oligomer, adding catalyst to the composition including lactic acid oligomer, and bringing the mixture to reaction conditions, to form lactide. It has been found that the process results in the efficient production of lactide with a high production rate and a good product quality.
    Type: Application
    Filed: February 11, 2016
    Publication date: February 1, 2018
    Applicant: PURAC BIOCHEM B.V.
    Inventors: Wim Jacob GROOT, Jan VAN KRIEKEN, Tanja DEKIC ZIVKOVIC, Andre Banier DE HAAN