Patents by Inventor Christian Maennel

Christian Maennel 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).

  • Coating method by electrocatalyzed chemical grafting of a surface of a substrate with a polymeric layer
    Patent number: 9534309
    Abstract: The present invention relates to a coating method by electrocatalyzed chemical grafting of a surface of a substrate with a polymeric layer characterized in that it comprises the following steps: a. a substrate is provided, b. a bath containing at least one polymerizable monomer via a radical route, at least one cleavable aryl salt, at least one reducing agent and at least one solvent is provided, in which a potential difference is applied, c. said substrate is immersed in said bath, d. a grafted polymer is obtained on the surface of said substrate. The invention also relates to a substrate obtained according to the coating method by electrocatalyzed chemical grafting, the surface of which is coated with a polymeric layer.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 3, 2017
    Assignee: PEGASTECH
    Inventors: Sebastien Roussel, Matthieu Laurent, Christian Maennel
  • COATING METHOD BY ELECTROCATALYZED CHEMICAL GRAFTING OF A SURFACE OF A SUBSTRATE WITH A POLYMERIC LAYER
    Publication number: 20140001048
    Abstract: The present invention relates to a coating method by electrocatalyzed chemical grafting of a surface of a substrate with a polymeric layer characterized in that it comprises the following steps: a. a substrate is provided, b. a bath containing at least one polymerizable monomer via a radical route, at least one cleavable aryl salt, at least one reducing agent and at least one solvent is provided, in which a potential difference is applied, c. said substrate is immersed in said bath, d. a grafted polymer is obtained on the surface of said substrate. The invention also relates to a substrate obtained according to the coating method by electrocatalyzed chemical grafting, the surface of which is coated with a polymeric layer.
    Type: Application
    Filed: December 21, 2011
    Publication date: January 2, 2014
    Applicant: PEGASTECH
    Inventors: Sebastien Roussel, Matthieu Laurent, Christian Maennel