Patents by Inventor Karolina Walker

Karolina Walker 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).

  • Publication number: 20230257523
    Abstract: The invention relates to a method for producing a poly(anthranilamide) via the polymerisation of isatoic anhydride, preferably in the presence of a solvent, on a starter at a reaction temperature in the region of 110° C. to 300° C., wherein the starter comprises an aliphatic mono- or diamine with 5 to 13 carbon atoms, an araliphatic mono- or diamine with 7 to 15 carbon atoms, an aromatic diamine with 6 to 13 carbon atoms, a carboxylic acid amide of formula Ar—(C?O)NHR, where Ar represents an aromatic group substituted with an amine NH— or NH2 group and R represents an aromatic or aliphatic group, or a mixture of the above-mentioned starters, and wherein the solvent, if used, comprises an organic solvent, which is in liquid form at the reaction temperature, an ionic liquid or a mixture of these solvents, obtaining a poly(anthranilamide) based on the starter.
    Type: Application
    Filed: July 5, 2021
    Publication date: August 17, 2023
    Inventors: Karolina Walker, Aurel Wolf, Stefan Westhues, Mike Schuetze, Olga Linker
  • Publication number: 20230235120
    Abstract: The present invention relates to a process of preparing a poly(anthranilamide) comprising the steps: (A) providing an anthranilate, and (B) reacting the anthranilate by polycondensation and separation of the alcohol on which the anthranilate is based in the presence of a catalyst to poly(anthranilamide), the poly(anthranilamides) obtained in this way and their use in the production of fibers of composite materials.
    Type: Application
    Filed: July 5, 2021
    Publication date: July 27, 2023
    Inventors: Karolina Walker, Aurel Wolf, Stefan Westhues, Mike Schuetze
  • Publication number: 20220267515
    Abstract: A process for preparing polyether carbonate alcohols by attaching cyclic propylene carbonate to an H-functional starter substance in the presence of a catalyst, characterized in that at least one compound according to formula MnX (I) is used as a catalyst, wherein M is selected from the alkali metal cations Li+, Na+, K+ and Cs+, X is selected from the anions VO3?, WO42?, MoO42? and VO43?, n is 1, if X?VO3?, n is 2, if X?WO42? or MoO42?, and n is 3, if X?VO43?.
    Type: Application
    Filed: August 12, 2020
    Publication date: August 25, 2022
    Inventors: Aurel Wolf, Stefan Westhues, Mike Schuetze, Karolina Walker, Christoph Guertler