Patents by Inventor Christian TRAßL

Christian TRAßL 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: 12233582
    Abstract: (Rigid) foams can be produced by heating a blowing agent containing polymers through the combination of thermal energy with irradiation by microwaves.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: February 25, 2025
    Assignee: Evonik Operations GmbH
    Inventors: Thomas Richter, Christoph Seipel, Christian Traßl, Andreas Liebe, Florian Becker, Vincent Ma Junyong
  • Publication number: 20240190052
    Abstract: A production process can produce foam materials from a polymer composition. This production process may involve preheating a polymer composition to be foamed. The preheated composition may then be foamed by a thermal process assisted by microwaves. The foaming may occur in an apparatus that has a heating device. The polymer composition may contain a blowing agent.
    Type: Application
    Filed: January 12, 2024
    Publication date: June 13, 2024
    Applicant: Evonik Operations GmbH
    Inventors: Thomas Richter, Andreas Liebe, Christian Traßl, Florian Becker, Vincent Ma Junyong
  • Patent number: 11904514
    Abstract: A production process can produce foam materials from polymer compositions. This process involves preheating in the foaming of polymers containing blowing agents and subsequent foaming by a thermal process assisted by microwaves.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: February 20, 2024
    Assignee: Evonik Operations GmbH
    Inventors: Thomas Richter, Andreas Liebe, Christian Traßl, Florian Becker, Vincent Ma Junyong
  • Publication number: 20240026109
    Abstract: A process for the production of functionalized particle foam mouldings based on a thermoplastic base material with a glass transition temperature of at least 100° C. involves functionalization of base particles.
    Type: Application
    Filed: November 16, 2021
    Publication date: January 25, 2024
    Applicant: Evonik Operations GmbH
    Inventors: Christian TRAßL, Florian Hopf, Mona Ganglauf
  • Patent number: 11814499
    Abstract: Polymer foams based on polyetherimides (PEIs) fulfill the legal specifications demanded by the aviation industry for aircraft interiors. Specifically, the demands on fire characteristics, stability to media and mechanical properties constitute a great challenge here. According to related art, suitable polymer foams are produced as semi-finished products. Reprocessing to give shaped articles is uneconomic in terms of time and material exploitation, for example by virtue of large amounts of cutting waste. The material is suitable in principle and can be processed to give particle foam mouldings. These mouldings can be produced without reprocessing in short cycle times and, hence, economically. Furthermore, this gives rise to new means of functional integration, for example by direct incorporation of inserts etc. in the foam, and with regard to freedom in terms of design.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: November 14, 2023
    Assignee: Evonik Operations GmbH
    Inventors: Christian Traßl, Denis Holleyn, Kay Bernhard
  • Publication number: 20230311365
    Abstract: A process can be used for producing (rigid) particle foams from polymer compositions containing at least one polymer having a glass transition temperature according to ISO 11357-2 of at least 180° C. with an underwater pelletization system.
    Type: Application
    Filed: July 15, 2021
    Publication date: October 5, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Christian Traßl, Melanie Niepert, Florian Hopf, Denis Holleyn, Mona Ganglauf
  • Publication number: 20230242729
    Abstract: Polymer foams based on polyetherimides (PEI) meet the legal requirements of the aerospace industry for both the interior and exterior of aircraft.
    Type: Application
    Filed: June 18, 2021
    Publication date: August 3, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Christian Traßl, Kay Bernhard, Dirk Roosen, Denis Holleyn, Vinod Paremal
  • Publication number: 20230131319
    Abstract: Polymer foams based on polyetherimides (PEI) or blends of polyetherimides and polyether ether ketone (PEEK) meet the legal requirements demanded by the aviation industry for aircraft interiors and for aircraft exteriors too.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 27, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Roland WURSCHE, Christian Traßl, Sebastian Geerkens, Jõrg Blaschke, Kay Bernhard, Denis Holleyn
  • Publication number: 20230105032
    Abstract: Polymer foams based on polyetherimides (PEIs) fulfill the legal specifications demanded by the aviation industry for aircraft interiors. Specifically, the demands on fire characteristics, stability to media and mechanical properties constitute a great challenge here. According to related art, suitable polymer foams are produced as semi-finished products. Reprocessing to give shaped articles is uneconomic in terms of time and material exploitation, for example by virtue of large amounts of cutting waste. The material is suitable in principle and can be processed to give particle foam mouldings. These mouldings can be produced without reprocessing in short cycle times and, hence, economically. Furthermore, this gives rise to new means of functional integration, for example by direct incorporation of inserts etc. in the foam, and with regard to freedom in terms of design.
    Type: Application
    Filed: December 7, 2022
    Publication date: April 6, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Christian TRAßL, Denis Holleyn, Kay Bernhard
  • Patent number: 11485832
    Abstract: High-temperature foams are produced and used in the construction of aeroplanes, ships and rail and other vehicles. In particular, the foams are further processed into sandwich materials by joining with two outer layers. To this end, a novel process is used for producing high-temperature foams (HT foams) which are particularly suitable for producing such sandwich components for lightweight construction. This process achieves an improvement in the processability of the HT foams produced and a weight reduction of the sandwich materials. The HT foams are furthermore rigid particle foams which are markedly more economic to produce than rigid block foams. In particular, a reduction is brought about in resin absorption in fibre composite processes through a process-related optimization of the surface constitution.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: November 1, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Christian Traßl, Thomas Richter
  • Publication number: 20220126490
    Abstract: (Rigid) foams can be produced by heating a blowing agent containing polymers through the combination of thermal energy with irradiation by microwaves.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 28, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Thomas Richter, Christoph Seipel, Christian Traßl, Andreas Liebe, Florian Becker, Vincent Ma Junyong
  • Publication number: 20220063153
    Abstract: A production process can produce foam materials from polymer compositions. This process involves preheating in the foaming of polymers containing blowing agents and subsequent foaming by a thermal process assisted by microwaves.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 3, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Thomas RICHTER, Andreas Liebe, Christian Traßl, Florian Becker, Vincent Ma Junyong
  • Publication number: 20210095092
    Abstract: Polymer foams based on polyethersulfone (PESU) fulfil the legal specifications demanded by the aviation industry for aircraft interiors. Specifically the demands on fire characteristics, stability to media and mechanical properties constitute a great challenge here. According to the related art, suitable polymer foams are produced as semifinished products. Reprocessing to give shaped articles is uneconomic in terms of time and material exploitation, for example by virtue of large amounts of cutting waste. The problem is solved by the material which is suitable in principle can be processed to give particle foam mouldings. These mouldings can be produced without reprocessing in short cycle times and hence economically. Furthermore, this gives rise to new means of functional integration, for example by direct incorporation of inserts etc. in the foam, and with regard to freedom in terms of design.
    Type: Application
    Filed: November 19, 2018
    Publication date: April 1, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Christian Traßl, Denis Holleyn, Kay Bernhard
  • Publication number: 20200407558
    Abstract: A composition is used for producing novel types of foam in that they combine specifically good flame-retardant properties with a good elongation at break. These novel types of foam are produced from a blend of polyether sulphone (PES) and polyphenylene sulphone (PPSU).
    Type: Application
    Filed: November 20, 2018
    Publication date: December 31, 2020
    Applicant: Evonik Operations GmbH
    Inventors: Christian TRAßL, Kay Bernhard, Luiz Araujo, Ina Liebl, Dirk Roosen, Uwe Lang, Thomas Richter, Marion Hax, Ron van Hoorn
  • Publication number: 20200325298
    Abstract: High-temperature foams are produced and used in the construction of aeroplanes, ships and rail and other vehicles. In particular, the foams are further processed into sandwich materials by joining with two outer layers. To this end, a novel process is used for producing high-temperature foams (HT foams) which are particularly suitable for producing such sandwich components for lightweight construction. This process achieves an improvement in the processability of the HT foams produced and a weight reduction of the sandwich materials. The HT foams are furthermore rigid particle foams which are markedly more economic to produce than rigid block foams. In particular, a reduction is brought about in resin absorption in fibre composite processes through a process-related optimization of the surface constitution.
    Type: Application
    Filed: November 20, 2018
    Publication date: October 15, 2020
    Applicant: Evonik Operations GmbH
    Inventors: Christian TRAßL, Thomas Richter