公开(公告)号：US20240166830A1

公开(公告)日：2024-05-23

申请号：US18500579

申请日：2023-11-02

申请人： Celanese International Corporation

发明人： Christian Ohm ,  David Ditter ,  Ludger Czyborra ,  Audrey Gensous

IPC分类号： C08J5/18 ,  C25B13/08

CPC分类号： C08J5/18 ,  C25B13/08 ,  C08J2323/06

摘要： A hydrophilic porous polymer film is disclosed that is particularly well-suited for use in an electrolysis cell producing hydrogen. The porous polymer film contains one or more high-density polyethylene polymers in combination with one or more hydrophilic additives. The porous film can be formed through a gel extrusion process or through sintering. Extremely thin films can be produced that have desired permeability characteristics, hydrophilicity characteristics, and mechanical characteristics necessary for use in the cell.

公开(公告)号：US20240043658A1

公开(公告)日：2024-02-08

申请号：US18358523

申请日：2023-07-25

申请人： Celanese International Corporation

发明人： Christian Ohm ,  David Ditter

IPC分类号： C08K5/524 ,  C08K5/12 ,  H01M50/417 ,  C08J7/04

CPC分类号： C08K5/524 ,  C08K5/12 ,  H01M50/417 ,  C08J7/0427 ,  C08K2201/014 ,  C08J2323/06

摘要： A polymer composition is disclosed that is particularly formulated for producing gel extruded articles containing a high density polyethylene polymer. In one embodiment, the polymer composition is used to produce a porous membrane or film well suited for use as an ion separator in an electronic device, such as a battery. The polymer composition contains a molecular weight retention package that preserves the molecular weight of the polyethylene polymer during extrusion.

公开(公告)号：US20230303811A1

公开(公告)日：2023-09-28

申请号：US18124848

申请日：2023-03-22

申请人： Celanese International Corporation

发明人： Fangfang Tao ,  Christian Ohm ,  Yingying Sun ,  David Ditter

IPC分类号： C08L23/06 ,  B01D71/26 ,  B01D69/02

CPC分类号： C08L23/06 ,  B01D71/261 ,  B01D69/02 ,  C08L2205/025 ,  B01D2325/24 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/341 ,  B01D2325/02

摘要： A polymer composition for producing gel extruded articles is described. The polymer composition contains at least three different polyethylene polymers, namely a lower molecular weight polyethylene polymer, a mid-range molecular weight polyethylene polymer, and a high molecular weight polyethylene polymer. Combining the different polyethylene polymers in different ratios can optimize not only mechanical properties but improve processing.