公开(公告)号：US20220258937A1

公开(公告)日：2022-08-18

申请号：US17591610

申请日：2022-02-03

Applicant: Carl Freudenberg KG

Inventor： Johanna Spoerl ,  Arun Prasad Venugopal ,  Klaus-Dietmar Wagner ,  Anthony Hollingsworth ,  Michaela Rau ,  Alexander Kolew ,  Naotaka Kimura

IPC: B65D65/40 ,  B32B5/26 ,  B32B5/02 ,  B65B5/04 ,  B65B55/02

Abstract: A packaging includes a composite material. The composite material includes a barrier layer and a backing layer. The backing layer includes a spunbonded nonwoven, arranged on at least one side of the barrier layer and bonded to the barrier layer by heat and pressure. The barrier layer includes a nonwoven containing 1 to 70 wt % melt-blown fibers and 30 to 99 wt % staple fibers, relative to a total weight of the nonwoven in each case.

公开(公告)号：US20200324235A1

公开(公告)日：2020-10-15

申请号：US16842795

申请日：2020-04-08

Applicant: Carl Freudenberg KG

Inventor： Oliver Staudenmayer ,  Heiko Schacht ,  Anhony Hollingsworth ,  Torsten Gorges ,  Alexander Kolew ,  Rosemarie Kurzer ,  Armin Greiner

IPC: B01D39/16 ,  D04H3/007 ,  D04H3/02 ,  D04H3/08

Abstract: A filter medium for filtration of an air stream includes: a non-woven having a plurality of bicomponent fibers. The non-woven includes a single-layer fiber composite having a first structure of bicomponent fibers and a second structure of continuous bicomponent fibers. The second structure engages with the first structure. In an embodiment, the bicomponent fibers include at least two polymer components. The at least two polymer components of the bicomponent fibers differ in melting point by at least 15 degrees and have a cover-core fiber structure or a side-by-side fiber structure.