Patents Assigned to Sima S.R.L.
  • Patent number: 11541585
    Abstract: A coextrusion head for manufacturing a bicomponent polymer fiber, comprising a first inlet for receiving a core polymer component, a second inlet for receiving a cladding polymer component, and a dual-channel nozzle comprising an inner channel and an outer channel encompassing the inner channel. The inner and outer channel are in hydraulic connection with the first and second inlet, respectively. The dual-channel nozzle further comprises a joining path establishing a hydraulic connection between the inner channel, the outer channel, and a nozzle outlet of the dual-channel nozzle. The joining path is adapted for bringing the core polymer component and the cladding polymer component into contact with each other such that a contact layer comprising a mixture of the core polymer component and the cladding polymer component is formed between the core polymer component and the cladding polymer component.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: January 3, 2023
    Assignees: Polytex Sportbelage Produktions-GmbH, Sima S.R.L.
    Inventors: Stephan Sick, Dirk Sander, Ivo Lohr, Andrea Zucconi
  • Publication number: 20200340142
    Abstract: A coextrusion head for manufacturing a bicomponent polymer fiber, comprising a first inlet for receiving a core polymer component, a second inlet for receiving a cladding polymer component, and a dual-channel nozzle comprising an inner channel and an outer channel encompassing the inner channel. The inner and outer channel are in hydraulic connection with the first and second inlet, respectively. The dual-channel nozzle further comprises a joining path establishing a hydraulic connection between the inner channel, the outer channel, and a nozzle outlet of the dual-channel nozzle. The joining path is adapted for bringing the core polymer component and the cladding polymer component into contact with each other such that a contact layer comprising a mixture of the core polymer component and the cladding polymer component is formed between the core polymer component and the cladding polymer component.
    Type: Application
    Filed: November 2, 2018
    Publication date: October 29, 2020
    Applicants: Polytex Sportbelage Produktions-GmbH, Sima S.R.L.
    Inventors: Stephan SICK, Dirk SANDER, Ivo LOHR, Andrea ZUCCONI