US 11,667,795 B2
Coating to cool a surface by passive radiative cooling
Quentin Van Overmeere, Mountain View, CA (US); Scott Alan Elrod, Palo Alto, CA (US); Scott E. Solberg, San Jose, CA (US); Gabriel Iftime, Dublin, CA (US); Ravi Neelakantan, Redwood City, CA (US); and Bernard D. Casse, Saratoga, CA (US)
Assigned to Palo Alto Research Center Incorporated, Palo Alto, CA (US)
Filed by Palo Alto Research Center Incorporated, Palo Alto, CA (US)
Filed on Aug. 2, 2021, as Appl. No. 17/392,028.
Application 16/403,285 is a division of application No. 15/444,029, filed on Feb. 27, 2017, granted, now 10,323,151, issued on Jun. 18, 2019.
Application 17/392,028 is a continuation of application No. 16/683,666, filed on Nov. 14, 2019, granted, now 11,084,944.
Application 16/683,666 is a continuation of application No. 16/403,285, filed on May 3, 2019, granted, now 10,584,250, issued on Mar. 10, 2020.
Prior Publication US 2021/0363356 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 2/01 (2006.01); C08F 6/02 (2006.01); C08F 6/10 (2006.01); C08F 6/00 (2006.01); B01J 8/18 (2006.01); B01J 8/26 (2006.01); C09D 5/33 (2006.01); C09D 5/02 (2006.01); C09D 133/10 (2006.01); C09D 129/14 (2006.01); C09D 7/40 (2018.01); C08K 3/30 (2006.01); C08K 3/22 (2006.01)
CPC C09D 5/004 (2013.01) [C09D 5/024 (2013.01); C09D 7/69 (2018.01); C09D 129/14 (2013.01); C09D 133/10 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/3045 (2013.01); C08K 2201/005 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a radiative cooling formulation comprising:
a first component with >55% reflectance in a wavelengths range of 0.3 to 2.5 microns;
a second component with a first thermal emissivity peak value greater than 0.85 at a first wavelength in a range of 8 to 13 microns (μm); and
a third component to mechanically bind together a mixture of the first component and second component.