Patents by Inventor Angélique LELIEVRE

Angélique LELIEVRE 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).

  • Use of at least one phenolic compound to stabilise ethylene copolymerisation reactions
    Patent number: 11441012
    Abstract: A method of stabilizing radical ethylene copolymerization reactions for approximately 5 to 10 minutes, the method including using a phenolic compound with other comonomers and performing the radical ethylene copolymerization reactions at high pressure. Also, a method of preparing an ethylene copolymer at high pressure in the presence of one or more phenolic compounds, as defined below, and one or more initiators.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 13, 2022
    Assignee: SK GLOBAL CHEMICAL CO., LTD.
    Inventors: Christian Laurichesse, Thibaut Severac, Angélique Lelievre, Claire Isabelle Michalowicz, Louis Defoor, Yves Cabon
  • USE OF AT LEAST ONE PHENOLIC COMPOUND TO STABILISE ETHYLENE COPOLYMERISATION REACTIONS
    Publication number: 20200010640
    Abstract: The present invention relates to the use of one or more phenolic compounds, as defined below, to stabilise ethylene copolymer reactions at high pressure. The invention also relates to a method of preparing an ethylene copolymer at high pressure in the presence of one or more phenolic compounds, as defined below, and one or more initiators.
    Type: Application
    Filed: December 22, 2017
    Publication date: January 9, 2020
    Applicant: Arkema France
    Inventors: Christian LAURICHESSE, Thibaut SEVERAC, Angélique LELIEVRE, Claire Isabelle MICHALOWICZ, Louis DEFOOR, Yves CABON