US 12,472,721 B2
Silica wet gel and aerogel
Reaz Ahmed Chowdhury, Middleton, WI (US); Mohammad Arifuzzaman, Middleton, WI (US); Kellen Kitzman, Middleton, WI (US); and Kari B. Myli, Sauk City, WI (US)
Assigned to CARDINAL CG COMPANY, Eden Prairie, MN (US)
Filed by Cardinal CG Company, Eden Prairie, MN (US)
Filed on Mar. 9, 2023, as Appl. No. 18/181,368.
Claims priority of provisional application 63/318,165, filed on Mar. 9, 2022.
Prior Publication US 2023/0286813 A1, Sep. 14, 2023
Int. Cl. B32B 5/18 (2006.01); B32B 17/06 (2006.01); C01B 33/154 (2006.01); C01B 33/155 (2006.01); C01B 33/158 (2006.01)
CPC B32B 5/18 (2013.01) [B32B 17/066 (2013.01); C01B 33/1546 (2013.01); C01B 33/155 (2013.01); C01B 33/1585 (2013.01); B32B 2250/40 (2013.01); B32B 2266/057 (2016.11); B32B 2266/126 (2016.11); B32B 2307/304 (2013.01); B32B 2307/414 (2013.01); B32B 2419/00 (2013.01); C01P 2006/32 (2013.01); C01P 2006/60 (2013.01)] 33 Claims
OG exemplary drawing
 
1. An article comprising a glass substrate and a silica aerogel sheet, the silica aerogel sheet being adhered to the glass substrate and being formed from a precursor material comprising methyl silicate 51 and having a thickness in a range of from 1.5 to 15 mm, a haze of less than 2.5%, a visible transmission of greater than 98%, a thermal conductivity of less than 20 mW/m*K, and a global structural similarity index measure of greater than 0.80, wherein the silica aerogel sheet is self-supporting such that the silica aerogel sheet retains sheet form without being adhered to a substrate.