Coating composition of flame retardant filler, latex binder and water soluble fire retardant borate
AssigneeOwens-Corning Fiberglas Corporation
InventorVincent de Paul Clark
Life of this patent
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Abstract
A water base, hardenable coating composition is disclosed for use on the inner or air conducting surfaces of fibrous glass thermal insulation employed in heating, cooling or ventilating conduits. The coating comprises, by weight: 70% to 90% of aluminum or magnesium hydrate; 5 to 20% of a binder such as vinyl acrylic latex or polyethylene vinyl acetate latex; and 1 to 10% of a flame retardant such as a sodium borate or boric acid.
Claims7
A coating composition for use on fibrous glass thermal insulation comprising an aqueous dispersion of coating solids, said solids, by weight, consisting essentially of:
- a. 70 to 90% of a flame retardant filler selected from the group consisting of aluminum hydrate or magnesium hydrate or a combination thereof;
- b. 5 to 20% of a binder selected from the group consisting of a latex of a copolymer of vinyl acetate and butyl acrylate, a copolymer of vinyl acetate and ethylene or a combination thereof;
- and
- c. 1 to 10% of a water soluble fire retardant borate selected from the group consisting of sodium borate or boric acid or a combination thereof.
A coating composition for use on fibrous glass thermal insulation comprising an aqueous dispersion of coating solids, said solids, by weight, consisting essentially of:
- a. 80 to 85% of a flame retardant filler selected from the group consisting of aluminum hydrate or magnesium hydrate or a combination thereof;
- b. 10 to 15% of a binder selected from the group consisting of a latex of a copolymer of vinyl acetate and butyl acrylate, a copolymer of vinyl acetate and ethylene or a combination thereof;
- and
- c. 2 to 4% of a water soluble fire retardant borate selected from the group consisting of sodium borate or boric acid or a combination thereof.
A coating composition for use on fibrous glass thermal insulation, the insulation being used as the inner air conducting surface of a heating, cooling or ventilating duct;
- said coating being capable of being applied to the insulation as an aqueous dispersion;
- and
- said coating being capable of drying to a flexible layer bonded to said insulation;
- said coating, by weight, consisting essentially of:
- a. 70 to 90% of a flame retardant filler selected from the group consisting of aluminum hydrate or magnesium hydrate or a combination thereof;
- b. 5 to 20% of a binder selected from the group consisting of a latex of a copolymer of vinyl acetate and butyl acrylate, a copolymer of vinyl acetate and ethylene or a combination thereof;
- and
- c. 1 to 10% of a water soluble fire retardant borate selected from the group consisting of sodium borate or boric acid or a combination thereof.
Dependencies are inferred from the claim text.