Patents Assigned to Phillips-Universitat Marburg
  • Publication number: 20130214441
    Abstract: The present invention provides aqueous stable suspensions of biodegradable diblock copolyesters and a method for their production. The diblock copolyesters comprise one block of an aliphatic polyester and one block of a polyethylene oxide. Suspensions according to the present invention are suitable to be used as biodegradable viscosity modifiers, compatibilizers in blends, as glues, varnishes, paper additives, flame retardants, impact modifiers and hazers of transparent plastics, and for the production of biodegradable sheets, films, fibers, plates, vessels, tubes and capillaries for transport or packaging purposes. Furthermore, the suspensions according to the present invention are suitable to be used for the production of nano- and microfibers and nano- and microfiber nonwovens with non-oriented or oriented fibers by means of electrospinning.
    Type: Application
    Filed: August 12, 2011
    Publication date: August 22, 2013
    Inventors: Andreas Greiner, Seema Agarwal, Kathrin Bubel
  • Patent number: 8431064
    Abstract: The invention relates to supports consisting of nanoscalar polymer fibers, polymer tubes or hollow fibers for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 30, 2013
    Assignees: Phillips-Universitat Marburg, Justus-Liebig Universitat Giessen
    Inventors: Andreas Greiner, Hans E. Hummel, Joachim H. Wendorff, Mathias Becker, Roland Dersch