US 12,350,905 B2
Heat-treatable coating having reduced haze
Jessica Smith, Cheswick, PA (US); Neil Curliss, Salem, OR (US); Maryanne Griffin, Apollo, PA (US); and Martin Bracamonte, Jupiter, FL (US)
Assigned to Vitro Flat Glass LLC, Cheswick, PA (US)
Filed by Vitro Flat Glass LLC, Cheswick, PA (US)
Filed on Sep. 28, 2022, as Appl. No. 17/954,441.
Claims priority of provisional application 63/254,237, filed on Oct. 11, 2021.
Prior Publication US 2023/0112850 A1, Apr. 13, 2023
Int. Cl. B32B 17/06 (2006.01)
CPC B32B 17/06 (2013.01) [B32B 2250/02 (2013.01); B32B 2255/205 (2013.01); B32B 2255/28 (2013.01); B32B 2307/714 (2013.01); B32B 2311/08 (2013.01); B32B 2311/16 (2013.01); B32B 2311/20 (2013.01); B32B 2315/08 (2013.01); B32B 2571/00 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A heat-treated coated article comprising:
a substrate comprising a first surface and second surface opposite the first surface; and
a functional coating applied over at least a portion of the first surface, the functional coating comprising:
a base layer over at least a portion of the first surface;
a metallic layer over at least a portion of the base layer; and
a top layer over at least a portion of the metallic layer,
wherein the base layer comprises a first film comprising tin oxide in direct contact with the portion of the first surface and a second film comprising zinc covering the entire portion of the first film,
wherein the heat-treated coated article comprises a red haze that is less than a red haze of a second heat-treated coated article comprising a base layer without a first film comprising tin oxide after heating, and
wherein the tin oxide of the first film comprises at least 80 weight percent (wt. %) tin and at most 20 wt. % zinc oxide.