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US 11,654,664 B2Granted
Composite cooling film comprising a reflective nonporous organic polymeric layer and a UV-protective layer
Assignee3M Innovative Properties Company
InventorsTimothy J. Hebrink, Milind B. Sabade, Laura R. Nereng, Caleb T. Nelson, James P. Burke, Vivian W. Jones
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Abstract
A composite cooling film including a reflective nonporous inorganic-particle-filled organic polymeric layer, an ultra-violet-protective layer or layers, and an antisoiling layer.
Claims24
A composite cooling film comprising:
- a reflective nonporous inorganic-particle-filled organic polymeric layer that exhibits an average reflectance of electromagnetic radiation of at least 85% over a wavelength range from 400 to 2500 nanometers,
- an ultraviolet-protective layer of organic polymeric material that is disposed outwardly of the reflective nonporous inorganic-particle-filled organic polymeric layer;
- and,
- an antisoiling layer of organic polymeric material, the antisoiling layer being disposed outwardly of the reflective nonporous inorganic-particle-filled organic polymeric layer and comprising an outwardly-facing, exposed antisoiling surface;
- wherein the composite cooling film has an average absorbance over the wavelength range 8-13 microns of at least 0.85.
2 more elements
Dependencies are inferred from the claim text.