Patents by Inventor Sabine KUMMER-DÖRNER

Sabine KUMMER-DÖRNER 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).

  • Impregnated reinforcing fiber yarn and its use in producing composite materials
    Patent number: 9540509
    Abstract: A pre-impregnated yarn including a bundle of reinforcing fiber filaments having a bundle interior and a bundle outer side, a first resin composition, and a second resin composition. The first resin composition includes at least one urethane resin, H1, produced from a reaction of a bifunctional aromatic epoxy compound based on bisphenol A, an aromatic polyisocyanate, and a polyalkylene glycol; an oxyalkylated bisphenol A resin, H2; and aromatic polyhydroxy ether P1. The filaments are impregnated with and at least partially connected via the first resin composition. The first resin composition is present in a concentration of 0.1 to 4 wt % relative to a total weight of the pre-impregnated yarn. The second resin composition is on the bundle outer side in the form of particles or drops adhering to the filaments, and is in a concentration of 0.5 to 14 wt % relative to the total weight of the pre-impregnated yarn.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: January 10, 2017
    Assignee: TOHO TENAX EUROPE GMBH
    Inventors: Sabine Kummer-Dörner, Silke Stüsgen, Silke Witzel, Jens Pusch, Markus Schneider, Bernd Wohlmann
  • IMPREGNATED REINFORCING FIBER YARN AND ITS USE IN PRODUCING COMPOSITE MATERIALS
    Publication number: 20150376404
    Abstract: A pre-impregnated yarn including a bundle of reinforcing fiber filaments having a bundle interior and a bundle outer side, a first resin composition, and a second resin composition. The first resin composition includes at least one urethane resin, H1, produced from a reaction of a bifunctional aromatic epoxy compound based on bisphenol A, an aromatic polyisocyanate, and a polyalkylene glycol; an oxyalkylated bisphenol A resin, H2; and aromatic polyhydroxy ether P1. The filaments are impregnated with and at least partially connected via the first resin composition. The first resin composition is present in a concentration of 0.1 to 4 wt % relative to a total weight of the pre-impregnated yarn. The second resin composition is on the bundle outer side in the form of particles or drops adhering to the filaments, and is in a concentration of 0.5 to 14 wt % relative to the total weight of the pre-impregnated yarn.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 31, 2015
    Inventors: Sabine KUMMER-DÖRNER, Silke STÜSGEN, Silke WITZEL, Jens PUSCH, Markus SCHNEIDER, Bernd WOHLMANN