Patents by Inventor Stefan ROETTEL

Stefan ROETTEL 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 producing foam molded parts with aesthetic surfaces by foam injection molding
    Patent number: 11027466
    Abstract: The invention relates to a process for producing a foam molded part, wherein a foamable material S comprising a thermoplastic polymer matrix M and at least one foaming agent F is foamed by foam injection molding. The polymer matrix M is preferably based on at least one thermoplastic styrene copolymer, such as ABS and ASA, and wherein the at least one foaming agent F is selected from chemical foaming agents, releasing carbon dioxide, and physical foaming agents, being carbon dioxide or nitrogen.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: June 8, 2021
    Assignee: INEOS STYROLUTION GROUP GMBH
    Inventors: Bastian Raithel, Norbert Niessner, Achim Bernhardt, Stefan Roettel, Pierre Juan, Andreas Popp
  • PROCESS FOR PRODUCING FOAM MOLDED PARTS WITH AESTHETIC SURFACES BY FOAM INJECTION MOLDING
    Publication number: 20200262111
    Abstract: The invention relates to a process for producing a foam molded part, wherein a foamable material S comprising a thermoplastic polymer matrix M and at least one foaming agent F is foamed by foam injection molding. The polymer matrix M is preferably based on at least one thermoplastic styrene copolymer, such as ABS and ASA, and wherein the at least one foaming agent F is selected from chemical foaming agents, releasing carbon dioxide, and physical foaming agents, being carbon dioxide or nitrogen.
    Type: Application
    Filed: December 13, 2016
    Publication date: August 20, 2020
    Inventors: Bastian RAITHEL, Norbert NIESSNER, Achim BERNHARDT, Stefan ROETTEL, Pierre JUAN, Andreas POPP
  • COMPONENT MADE OF THERMOPLASTIC COMPOSITE MATERIAL WITH INCREASED NOTCHED BAR IMPACT STRENGTH
    Publication number: 20180043657
    Abstract: The invention relates to a component made of thermoplastic composite material, comprising a core K and at least one coating G, wherein: the coating G at least partially surrounds the core K, the core K is made of a first thermoplastic moulding compound M1, the first thermoplastic moulding compound M1 contains multiple shaped bodies F, and the coating G is made of a second thermoplastic moulding compound M2. The invention also relates to a method for producing the component.
    Type: Application
    Filed: February 18, 2016
    Publication date: February 15, 2018
    Inventors: Achim BERNHARDT, Eike JAHNKE, Marko BLINZLER, Stefan ROETTEL, Norbert NIESSNER