COMPOSITE MEMBRANE AND METHOD FOR PRODUCING A COMPOSITE MEMBRANE

    公开(公告)号:US20180046223A1

    公开(公告)日:2018-02-15

    申请号:US15555375

    申请日:2017-01-13

    Applicant: Sefar AG

    Abstract: The invention relates to a composite for an acoustic component having at least one carrier layer and an electrospun membrane which is arranged on the at least one carrier layer, wherein the electrospun membrane is formed of superimposed fibers whilst a pore structure is being designed. The pore structure of the composite is designed such that the composite has a water column of at least 1 m and an air permeability of 5 L/m2*s. Furthermore, the invention relates to a method for producing a composite for an acoustic component, in which a carrier layer is provided and on the carrier layer a membrane is designed according to the electrospinning method, wherein the membrane is produced of superimposed fibers with a defined pore structure.

    POLYMERIC FABRIC
    4.
    发明申请

    公开(公告)号:US20230136835A1

    公开(公告)日:2023-05-04

    申请号:US18052472

    申请日:2022-11-03

    Applicant: Sefar AG

    Abstract: The invention relates to a polymeric fabric comprising an outer functional layer having hydrophobic and oleophobic characteristics made of a first compound, and a second functional layer having hydrophobic characteristics made of a second compound, wherein the first and the second compound differ from each other. Further the outer functional layer at least partly coats the second layer. Additionally, the invention relates to a method of producing a polymeric fabric and an apparatus for producing a polymeric fabric.

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