US 11,944,953 B2
Method of forming VOC and odor reducing building panels
Kenneth G. Caldwell, Mountville, PA (US); Steven L. Masia, Lancaster, PA (US); Gourish Sirdeshpande, Lancaster, PA (US); and Michelle X Wang, Lititz, PA (US)
Assigned to AWI Licensing LLC, Wilmington, DE (US)
Filed by ARMSTRONG WORLD INDUSTRIES, INC., Lancaster, PA (US)
Filed on Apr. 27, 2021, as Appl. No. 17/241,422.
Application 17/241,422 is a division of application No. 16/993,786, filed on Aug. 14, 2020, granted, now 11,014,066.
Application 15/706,870 is a division of application No. 14/970,308, filed on Dec. 15, 2015, granted, now 9,764,307, issued on Sep. 19, 2017.
Application 16/993,786 is a continuation of application No. 16/252,864, filed on Jan. 21, 2019, granted, now 10,780,415, issued on Sep. 22, 2020.
Application 16/252,864 is a continuation of application No. 15/706,870, filed on Sep. 18, 2017, granted, now 10,183,271, issued on Jan. 22, 2019.
Prior Publication US 2021/0245136 A1, Aug. 12, 2021
Int. Cl. B01J 20/22 (2006.01); B01J 20/04 (2006.01); B01J 20/10 (2006.01); B01J 20/12 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); E04B 9/00 (2006.01); E04B 9/04 (2006.01); E04C 2/00 (2006.01)
CPC B01J 20/22 (2013.01) [B01J 20/043 (2013.01); B01J 20/103 (2013.01); B01J 20/12 (2013.01); B01J 20/28035 (2013.01); B01J 20/3042 (2013.01); B01J 20/3236 (2013.01); E04B 9/001 (2013.01); E04B 9/045 (2013.01); E04C 2/00 (2013.01)] 20 Claims
 
1. A method of forming a VOC and odor-reducing building panel comprising:
providing a substrate;
applying a wet-state coating to a major surface of the substrate, the wet-state coating comprising:
ethylene urea;
silica gel;
rheology modifier; and
carrier comprising water; and
drying the wet-state coating, thereby evaporating at least 95 wt. % of the carrier to form a dry-state coating.