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

Inventor： Mohammad Mokbul HOSSAIN ,  Hanspeter MEIER ,  Matteo CAMANI

IPC: G06F1/16 ,  B01D69/12 ,  B01D69/02 ,  H04R31/00 ,  B32B5/26 ,  D06M10/02 ,  G10K13/00 ,  B01D69/10 ,  B32B5/02

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.

公开(公告)号：US20220371050A1

公开(公告)日：2022-11-24

申请号：US17723406

申请日：2022-04-18

Applicant: Sefar AG

Inventor： Mohammad Mokbul HOSSAIN ,  Christoph ELLENBERGER ,  Matteo CAMANI ,  Karim CHAKHARI

IPC: B05D3/04 ,  D04H3/016 ,  D04H13/00 ,  D04H1/728 ,  D04H1/42

Abstract: The invention relates to a method for producing a carrier layer with a hydrophilic polymeric nanocoating wherein a polymeric carrier layer is produced with filaments of polymer material(s). Further the hydrophilic polymer nanocoating is applied by means of a low pressure plasma polymerization process using organic precursor monomers onto the polymeric carrier layer and/or composite membrane. Additionally, the invention relates to a carrier layer with a polymeric hydrophilic nanocoating.

公开(公告)号：US20240175200A1

公开(公告)日：2024-05-30

申请号：US18383663

申请日：2023-10-25

Applicant: Sefar AG

Inventor： Mohammad Mokbul HOSSAIN ,  Christoph ELLENBERGER ,  Karim CHAKHARI

IPC: D06M15/256 ,  C09D5/16 ,  C09D127/12 ,  D06M10/02 ,  D06M10/10

CPC classification number: D06M15/256 ,  C09D5/1656 ,  C09D127/12 ,  D06M10/025 ,  D06M10/10 ,  D06M2101/32

Abstract: The invention relates to a method of producing an object having a fluorinated polymer coating free of per- and polyfluorinated acids and salts thereof, wherein the method comprises a step DF of depositing a fluorinated polymer coating on the object by means of plasma polymerization of a fluorinated precursor monomer and a step IG of exposing the object to an inhibiting gas which inhibits the formation of per- and polyfluorinated acids and salts thereof in or on the deposited fluorinated coating. Thereby step IG is carried out after step DF, and from the start of step DF until the end of step IG the object is treated in a substantially oxygen free atmosphere.

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

Inventor： Mohammad Mokbul HOSSAIN ,  Christoph ELLENBERGER

IPC: B32B7/02 ,  C09D201/02 ,  D06M15/256

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.