Patent ID: 11952475
Assignee: CELGARD, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  H  Y | IPC C  H

Claim 3:
4. The dry process polymer membrane of claim 1, wherein the polymer resin (B) forms a thin coating that makes the coated membrane film nanoporous, microporous, mesoporous, stronger, more versatile, oleophobic, hydrophilic, exhibit higher puncture strength, higher temperature melt integrity, more oxidation resistance, lower temperature shutdown, lower COF, lower pin removal force, higher coating adhesion, and/or functionalization, improved elongation at break, improved hole shape in TMA or compression TMA testing (round in place of tear), improved nail penetration test results (pass NPT), improved transverse direction (TD) tensile strength, improved balance of MD and TD strength properties, improved functionalization, improved ionic conductance, provide shutdown, may be sticky (adhesive, surface), may be ceramic coated, may be IR detectable, may be SEM detectable, may be a catalyst, may provide cross linking, and/or other improved performance, function, and/or characteristics, and/or combinations thereof.