Patents by Inventor Sebastian Heßner

Sebastian Heßner 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).

  • Patent number: 11718747
    Abstract: Flame retardant compositions, blends and articles include phosphonate polymers, nanoparticles and optionally dispersing agents. A method for preparing such retardant composition, blends, and articles is also presented herein.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: August 8, 2023
    Assignees: Evonik Operations GmbH, FRX Polymers, Inc.
    Inventors: Kathrin Lehmann, Sebastian Hessner, Jan-Pleun Lens, Xiudong Sun
  • Publication number: 20230002601
    Abstract: The present invention relates to a blend containing at least two different polyolefins which is characterized in that it contains as a further constituent an amorphous poly-alpha-olefin which is based on the monomers ethene, propene and 1-butene and has a viscosity at 190° C. of 200 mPa*s to 200,000 mPa*s, wherein it contains polyethylene and polypropylene as at least two different polyolefins and wherein the polyethylene has a melt flow index [MFI 2.16 kg@190° C.] determined according to the method ISO 1133 reported in the description of less than 10 g/10 min, preferably of 0.01 to 2 g/10 min, and the polypropylene has a melt flow index [MFI 2.16 kg@230° C.] determined according to the method reported in the description of less than 50 g/10 min, preferably of 0.01 to 25 g/10 min, to a process for producing such blends and to the use thereof.
    Type: Application
    Filed: October 13, 2020
    Publication date: January 5, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Sebastian Babik, Steffen Cepa, Sebastian Heßner, Stefan Kirschbaum
  • Publication number: 20220267583
    Abstract: Compositions contain a poly(alkyl)(meth)acrylate matrix material and at least one additive, where the transparency is influenced to a minimal degree by the addition of the additive.
    Type: Application
    Filed: August 3, 2020
    Publication date: August 25, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Kathrin Lehmann, Sebastian Hessner, Angela Nawracala, Sadik Amajjahe, Stefan Busch
  • Publication number: 20200339802
    Abstract: Flame retardant compositions, blends and articles include phosphonate polymers, nanoparticles and optionally dispersing agents. A method for preparing such retardant composition, blends, and articles is also presented herein.
    Type: Application
    Filed: January 14, 2019
    Publication date: October 29, 2020
    Applicants: Evonik Operations GmbH, FRX Polymers, Inc.
    Inventors: Kathrin Lehmann, Sebastian Hessner, Jan-Pleun Lens, Xiudong Sun