Granted Patent B2

US 7,849,542 · App. 11/472,912 · Granted Dec 14, 2010

Abstract

Claims (26)

1. A mattress construction comprising:

an inner core; and

a flame resistant layer positioned at or adjacent to the inner core, the flame resistant layer comprising

a fabric layer formed of fibers; and

a flame resistant thermoplastic laminated to the fabric layer, wherein the flame resistant thermoplastic forms a substantially continuous flame resistant barrier layer.

2. The mattress of claim 1 , wherein the flame resistant thermoplastic is heat bonded in planar to the fabric layer.

3. The mattress of claim 1 , wherein the flame resistant thermoplastic is pressure bonded in planar to the fabric layer.

4. The mattress of claim 1 , wherein the flame resistant thermoplastic is adhered in planar to the fabric layer.

5. The mattress of claim 1 , wherein the flame resistant thermoplastic melts through a surface of the fabric layer and into the fibers.

6. The mattress of claim 1 , wherein surfaces of the fibers and the flame resistant thermoplastic are fused together.

7. The mattress of claim 1 , wherein

the fabric layer has interstices interspersed throughout the fibers; and

the flame resistant thermoplastic covers said interstices.

8. The mattress of claim 1 , wherein the flame resistant thermoplastic has a volume sufficient to render the flame resistant layer substantially impervious to air.

9. The mattress of claim 1 , wherein the flame resistant thermoplastic forms a layer having a thickness between 0.5 mils and 5 mils.

10. The mattress of claim 1 , wherein the fabric layer includes at least one of flame resistant fibers or a flame resistant additive.

11. The mattress of claim 1 , wherein the flame resistant fibers include at least one of aramid, meta-aramid, para-aramid, polyamide-imide, polyimide, melamine, modacrylic, polybenzimidazole, glass fibers, or carbon fibers.

12. The mattress of claim 1 , wherein the flame resistant additive includes at least one of a phosphorus-based additive, an antimony-based additive, a bromine-based additive, ammonium polyphosphate, ammonium dihydrogen phosphate, colloidal antimony pentoxide, antimony trioxide, sodium antimonite, zinc borate, zirconium oxides, diammonium phosphate, sulfamic acid, salts of sulfamic acid, boric acid, salts of boric acid, or hydrated alumina.

13. The mattress of claim 1 , wherein the flame resistant thermoplastic includes at least one of amorphous Polyetherimide, Polypropylene, Nylon, Polycarbonate, Acrylonitrile Butadiene Styrene, Polybutylene Terephthalate, Polycarbonate/ABS Alloy, or Polycarbonate/Acrylic Alloy.

14. The mattress of claim 1 , wherein the fabric layer includes at least one of cotton, polyester, vinyl, linen, silk, wool, latex, acrylic, polypropylene, rayon, bamboo, hemp, cashmere, or modal.

15. The mattress of claim 1 , wherein the flame resistant layer is used as an outermost layer of upholstery.

16. The mattress of claim 1 , wherein the flame resistant layer is positioned at or adjacent a side of the inner core.

17. The mattress of claim 1 , further comprising a second flame resistant layer disposed beneath upholstery and above the inner core of the mattress.

18. The mattress of claim 1 , further comprising a non-woven batting layer adjacent to the flame resistant layer; and

a fabric backing layer adjacent to the non-woven batting layer.

19. The mattress of claim 18 , wherein the flame resistant thermoplastic includes amorphous polyetherimide, the fabric layer includes at least one of polypropylene or polyester, the non-woven batting layer includes flame resistant rayon and polyseter, and the fabric backing layer includes polypropylene.

Assignments (26)