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US 7,608,550 B2Granted
Fire retardant fiberglass mat
AssigneeJohns Manville
InventorGlenda Beth Bennett
Life of this patent
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Abstract
Dispersion of a fire retardant agent in a binder used to form a fire retardant fiberglass mat allows for easy and uniform incorporation of the fire retardant agent into the fire retardant fiberglass mat. The fire retardant fiberglass mat is bonded to a fiberglass insulation batt, providing fire retardant composite useful as duct board or equipment liner.
Claims21
A fire retardant fiberglass mat comprising:
- a) 50 to 95 weight percent glass fibers;
- b) 5 to 50 weight percent binder;
- and
- c) a fire retardant composition comprised of a metal hydroxide and carbon black dispersed in the binder.
1 more element
Fire retardant fiberglass insulation comprising:
- a) a fiberglass insulation batt;
- and
- b) a fire retardant fiberglass facer mat bonded to the fiberglass insulation, the fire retardant fiberglass facer mat comprising:
- i) 50 to 95 weight percent glass fibers;
- ii) 5 to 50 weight percent binder;
- and
- iii) a fire retardant composition comprised of a metal hydroxide and carbon black dispersed in the binder.
4 more elements
A method of forming fire retardant fiberglass insulation comprising:
- a) forming a fire retardant fiberglass facer mat comprising:
- i)50 to 95 weight percent glass fibers;
- ii)5 to 50 weight percent binder;
- and
- iii) a fire retardant composition comprised of a metal hydroxide and carbon black dispersed in the binder;
- and
- b) bonding the fire retardant fiberglass facer mat to a face of a fiberglass insulation batt.
4 more elements
Dependencies are inferred from the claim text.