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

Claim 37:
38. The microporous membrane of claim 35, wherein:
the microporous membrane comprises polyethylene having a melt flow rate from 0.1 to 10 g/min;
at least one layer of the membrane comprises polyethylene and has a thickness of at least 1.75 microns;
at least one layer of the membrane comprises polyethylene and has a thickness of at least 2 microns;
at least one layer of the membrane comprises polyethylene and has a thickness of less than 2 microns;
the membrane comprises polypropylene having a melt flow rate from 0.01 to 10 g/10 min when measured according to ASTM D1238-13 and/or ISO 1133-1:2011;
the membrane comprises polypropylene having a melt flow rate from 0.1 to 5 g/10 min when measured according to ASTM D1238-13 and/or ISO 1133-1:2011; or
the membrane comprises polypropylene having a melt flow rate from 0.01 to 2.5 g/10 min when measured according to ASTM D1238-13 and/or ISO 1133-1:2011.