US 12,077,670 B2 · Coated insulation material substrate

Abstract

A coated insulation material comprising an insulation material substrate and a coating on at least part of a surface of the insulation material substrate and wherein the coating comprises 20 to 65 wt % alkali silicate based on the total weight of the cured coating and the alkali silicate comprises potassium silicate. Also described is an aqueous coating composition useful in providing the insulation material coating, a potassium silicate coating, methods of producing the coated insulation material and potassium silicate coating and kit of parts including an insulation material substrate and either the aqueous coating composition or the potassium silicate coating.

Claims18

Dependent claims

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.

5 more elements

An aqueous coating composition for coating an insulation material substrate comprising:

(a) 10 to 40 wt. % of an alkali silicate comprising potassium silicate and lithium silicate in amounts of
5 to 15 wt. % of K2O;
0.01 to 1 wt. % of Li2O;
and
5 to 25 wt. % of SiO2;
wherein the weight ratio of SiO2 to K2O is at least 1;
and
(b) 15 to 60 wt. % of a curing agent;
and
(c) 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;
and
(d) 0.02 to 0.8 wt. % of a surfactant relative to the total weight of the composition;
and
(e) at least 15 wt. % of water;
wherein the wt. % amounts are based on the total weight of the aqueous coating composition.

14 more elements

Dependencies are inferred from the claim text.

Coated insulation material substrate

Life of this patent

Coated insulation material substrate

Life of this patent

Abstract

Claims18