Patents by Inventor Jessika SCHÜLLER

Jessika SCHÜLLER 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).

  • Process for regenerating a catalyst for the hydroformylation of olefins in the gas phase
    Patent number: 11951466
    Abstract: The present invention relates to a simple process for regenerating a hydroformylation catalyst consisting of a heterogenized catalyst system on a support consisting of a porous ceramic material. The invention also relates to a process for the start-up of the hydroformylation reaction after regeneration according to the invention.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: April 9, 2024
    Assignee: EVONIK OXENO GMBH & CO. KG
    Inventors: Robert Franke, Linda Arsenjuk, Jessika Schüller, Frank Stenger, Vinzenz Fleischer, Marc Oliver Kristen
  • PROCESS FOR PRODUCING SOLID POLYURETHANE CURING AGENTS
    Publication number: 20230105553
    Abstract: The present invention relates to a process for producing a solid, internally and externally blocked polyurethane curing agent based on a (cyclo)aliphatic polyisocyanate, in which, in the sequence of steps a) to d), a) i) at least one internally blocked (cyclo)aliphatic polyisocyanate and ii) at least one lactam and/or at least one aliphatic alcohol are dissolved in a solvent to produce a reaction mixture, b) the reaction mixture is heated and reacted, c) the reacted reaction mixture is cooled until product precipitates, and d) liquid solvent and any unreacted dissolved reactants and precipitated product are mechanically separated from one another.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 6, 2023
    Inventors: Emmanouil Spyrou, Andrea Henschke, Elke Gollan, Nicole Fresmann, Jessika Schüller
  • PROCESS FOR REGENERATING A CATALYST FOR THE HYDROFORMYLATION OF OLEFINS IN THE GAS PHASE
    Publication number: 20220379294
    Abstract: The present invention relates to a simple process for regenerating a hydroformylation catalyst consisting of a heterogenized catalyst system on a support consisting of a porous ceramic material. The invention also relates to a process for the start-up of the hydroformylation reaction after regeneration according to the invention.
    Type: Application
    Filed: April 8, 2022
    Publication date: December 1, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Robert Franke, Linda Arsenjuk, Jessika Schüller, Frank Stenger, Vinzenz Fleischer, Marc Oliver Kristen
  • REACTIVE COMPOSITION COMPRISING POLYAMINES AND A DISPERSION CONTAINING URETDIONE GROUPS
    Publication number: 20150329751
    Abstract: A reactive composition contains A) an aqueous polyurethane-polyurea dispersion containing an uretdione group and having an internal emulsifier, the emulsifier having at least one ionogenic group which, in the case of an acidic ionogenic group, has a pKa in water of >8 at room temperature or, in the case of a basic ionogenic group, has a pKb of >8 at room temperature, B) at least one diamine and/or polyamine, wherein a ratio of a latent NCO group in the polyurethane-polyurea dispersion A) containing an uretdione group to the amine groups in component B) is from 4:1 to 1:1, and C) optionally, at least one member selected from the group consisting of an auxiliary, an adjuvant and a catalyst.
    Type: Application
    Filed: May 13, 2015
    Publication date: November 19, 2015
    Applicant: EVONIK INDUSTRIES AG
    Inventors: Wiebke STACHE, Emmanouil SPYROU, Iris BRÜCKNER, Sven BÜSCHER, Jessika SCHÜLLER