Patent ID: 11859065
Assignee: KING FAISAL UNIVERSITY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A freestanding superhydrophobic sheet comprising:
a strong, nonporous support base layer comprising polypropylene (PP) isolated from plastic waste made through spin casting followed by annealing and having a thickness of 3 μm to 170 μm; and
a porous top layer comprising polypropylene (PP) isolated from plastic waste made through spin casting on the strong, nonporous support base layer, and comprising a superhydrophobic surface and having a thickness of 7 μm to 170 μm,
wherein the superhydrophobic sheet has a total thickness of 10 μm to 340 μm and is peeled off from the solid substrate.