Patent ID: 11958036
Assignee: KING FAISAL UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 3:
4. The method for preparing a freestanding porous polyethylene thin film of claim 1, wherein the swellable pocket forming agent is selected from the group consisting of sodium chloride, mica, alumina, barium sulfate, barium carbonate, calcium sulfate, calcium oxide, calcium carbonate, diatomaceous earth, clay, talc, glass powder, kaolin, magnesium oxide, magnesium sulfate, magnesium carbonate, silica clay, silica, titanium oxide, zinc oxide, potassium chloride, calcium chloride, and a combination thereof; and wherein a size of the swellable pocket forming agent ranges from about 3 μm to about 200 μm.