Patents by Inventor Jochen Beyermann

Jochen Beyermann 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).

  • Particles having an organized internal structure which are dispersed in an aqueous phase, the preparation thereof and use of same
    Patent number: 7579400
    Abstract: The invention relates to particles comprising: at least one ionically-charged water-soluble polymer; at least one surfactant having an ionic charge opposite to that of said polymer; and at least one water-soluble block copolymer having at least one non-ionic hydrophilic block and at least one non-ionic hydrophobic or ionic block. The invention also relates to a method of obtaining such particles consisting in: preparing a first aqueous mixture comprising the water-soluble, ionically-charged polymer and, if necessary, the water-soluble block copolymer if said copolymer has the same charge; subsequently, a second mixture is added to the above mixture, said second mixture comprising the surfactant and, if necessary, the water-soluble block copolymer if said copolymer has the same charge as the surfactant or if it is not ionically charged.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: August 25, 2009
    Assignee: Rhodia Chimie
    Inventors: Bruno Bavouzet, Jochen Beyermann, Pascal Herve
  • Particles having an organized internal structure which are dispersed in an aqueous phase, the preparation thereof and use of same
    Publication number: 20050245672
    Abstract: The invention relates to particles comprising: at least one ionically-charged water-soluble polymer; at least one surfactant having an ionic charge opposite to that of said polymer; and at least one water-soluble block copolymer having at least one non-ionic hydrophilic block and at least one non-ionic hydrophobic or ionic block. The invention also relates to a method of obtaining such particles consisting in: preparing a first aqueous mixture comprising the water-soluble, ionically-charged polymer and, if necessary, the water-soluble block copolymer if said copolymer has the same charge; subsequently, a second mixture is added to the above mixture, said second mixture comprising the surfactant and, if necessary, the water-soluble block copolymer if said copolymer has the same charge as the surfactant or if it is not ionically charged.
    Type: Application
    Filed: December 10, 2002
    Publication date: November 3, 2005
    Inventors: Bruno Bavouzet, Jochen Beyermann, Pascal Herve