Patent ID: 11969929
Assignee: CELGARD, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  H  D  Y | IPC B  D  H

Claim 35:
36. The membrane of claim 35, wherein:
the microporous membrane comprises a structure PP/PP/PE/PE/PP/PP, wherein the structure is formed by collapsing a bubble comprising co-extruded PP/PP/PE;
the microporous membrane comprises a structure PP/PE/PE/PE/PE/PP, wherein the structure is formed by collapsing a bubble comprising co-extruded PP/PE/PE;
the microporous membrane comprises a structure PP/PP/PP/PP, wherein the structure is formed by collapsing a bubble comprising co-extruded PP/PP;
the microporous membrane comprises a structure PE/PE/PE/PE, wherein the structure is formed by collapsing a bubble comprising co-extruded PE/PE;

the microporous membrane comprise a structure PP/PE/PE/PP, wherein the structure is formed by collapsing a bubble comprising co-extruded PP/PE;
the microporous membrane comprises a structure PE/PP/PP/PE, wherein the structure is formed by collapsing a bubble comprising co-extruded PE/PP;
the microporous membrane comprises a structure PE/PP/PP/PP/PP/PE, wherein the structure is formed by collapsing a bubble comprising co-extruded PE/PP/PP; or
the microporous membrane has a structure PP/PE/PP/PE/PE/PP/PE/PP, wherein the structure is formed by collapsing a bubble comprising co-extruded PP/PE/PP/PE.