US 12,077,670 B2
Coated insulation material substrate
Els Bleus, Turnhout (BE); Ellen Kuppens, Mol (BE); Kate Ranieri, Deurne (BE); Piet Vitse, Herent-Winksele (BE); Remco Visseren, Eijsden (NL); Gere Kattenbeld, Eijsden (NL); and Joris Van Der Eerden, Eijsden (NL)
Assigned to PITTSBURGH CORNING EUROPE NV, Tessenderlo (BE)
Appl. No. 17/276,556
Filed by PITTSBURGH CORNING EUROPE NV, Tessenderlo (BE)
PCT Filed Sep. 16, 2019, PCT No. PCT/EP2019/074755
§ 371(c)(1), (2) Date Mar. 16, 2021,
PCT Pub. No. WO2020/058211, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 18195314 (EP), filed on Sep. 18, 2018.
Prior Publication US 2022/0049106 A1, Feb. 17, 2022
Int. Cl. C09D 1/04 (2006.01); C03C 11/00 (2006.01); C03C 17/22 (2006.01); C09D 7/61 (2018.01); E04B 1/80 (2006.01)
CPC C09D 1/04 (2013.01) [C03C 11/00 (2013.01); C03C 17/22 (2013.01); C09D 7/61 (2018.01); E04B 1/806 (2013.01); C03C 2217/78 (2013.01); C03C 2218/11 (2013.01); C03C 2218/32 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A coated cellular glass insulation material comprising a cellular glass insulation material substrate and a coating on at least part of a surface of the cellular glass insulation material substrate, wherein the coating is formed by curing an aqueous coating composition comprising alkali silicate and a curing agent, wherein the aqueous coating composition comprises:
(a) 10 to 50 wt. % of the alkali silicate, the alkali silicate comprising potassium silicate;
(b) 15 to 60 wt. % of the curing agent;
(c) at least 15 wt. % of water; and
(d) 0.1 to 15% wt. % of one or more compounds of Formula 1
R(OH)n  Formula 1
wherein R denotes an optionally substituted C2-6 hydrocarbyl or C2-6 carbohydrate moiety and n is an integer from 1 to 6;
wherein the wt. % amounts are based on the total weight of the aqueous coating composition.