Transparent laminate for radiative cooling and radiative cooling material including the same
AssigneesHyundai Motor Company, Kia Corporation
InventorMin Jae Lee
Life of this patent
Estimating the term…
Abstract
A transparent laminate for radiative cooling comprises a first near-infrared reflective layer including a first layer containing a first polymer and a second layer containing a second polymer stacked alternately, where the first near-infrared reflective layer reflects a near-infrared ray with a wavelength in a range from 740 to 1,400 nm, a second near-infrared reflective layer formed on the first near-infrared reflective layer and reflecting a near-infrared ray with a wavelength in a range from 1,500 to 2,000 nm, and an infrared emissive layer formed on the second near-infrared reflective layer and containing polycarbonate, and a radiative cooling material including the same.
Claims14
A transparent laminate for radiative cooling, the transparent laminate comprising:
- a first near-infrared reflective layer including a first layer containing a first polymer and a second layer containing a second polymer stacked alternately with the first layer, wherein the first near-infrared reflective layer reflects a near-infrared ray with a wavelength in a range from 740 to 1,400 nm, and wherein the second polymer has lower refractive index than the first polymer;
- a second near-infrared reflective layer formed on the first near-infrared reflective layer and reflecting a near-infrared ray with a wavelength in a range from 1,500 to 2,000 nm;
- and
- an infrared emissive layer formed on the second near-infrared reflective layer and containing polycarbonate;
- wherein the second near-infrared reflective layer contains at least one selected from a group consisting of:
- Au and C, and
- wherein the infrared emissive layer has an average thickness in a range from 50 to 300 μm.
Dependencies are inferred from the claim text.