Patent ID: 11878493
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC B  G | IPC B  G

Claim 13:
14. A method comprising:
forming an optically transparent layer of ultra-high molecular weight polyethylene; and
forming an IR reflective layer over the optically transparent layer to create a layered structure having a short wavelength (0.25<λ<5 μm) infrared reflectance of at least approximately 10% and a long wavelength (8<λ<14 μm) infrared reflectance of less than approximately 10% a thickness of the optically transparent layer ranges from approximately 10 micrometers to approximately 1 mm and a thickness of the IR reflective layer ranges from approximately 0.2 mm to approximately 1 mm, and, wherein forming the IR reflective layer comprises forming a PVDF foam layer by inversion phase separation of a polymer solution in a non-solvent bath.