CIGARETTE BURN RESISTANT MATTRESSES HAVING ALUMINIZED POLYURETHANE FOAM LAYER

• US 3,833,951 A
• Filed: 04/02/1973
• Issued: 09/10/1974
• Est. Priority Date: 04/02/1973
• Status: Expired due to Term

• Current Assignee: Melvin D. Hurwitz
• Original Assignee: Melvin D. Hurwitz
• Inventors: Hurwitz, Melvin D.
• Primary Examiner(s): Nunberg, Casmir A.
• Application Number:
  US05/347,036
• Time in Patent Office: 526 Days
• Field of Search: 5/345,355 297/DIG.5 117/136,137
• US Class Current: 5/698
• CPC Class Codes: A47C 27/22 with both fibrous and foamed material inlays
• CPC Class Codes: B32B 2038/008 Sewing, stitching
• CPC Class Codes: B32B 2255/102 synthetic resin or rubber layer being a foamed layer
• CPC Class Codes: B32B 2255/205 Metallic coating
• CPC Class Codes: B32B 2266/0278 Polyurethane
• CPC Class Codes: B32B 2305/022 Foam
• CPC Class Codes: B32B 2305/188 Woven fabrics
• CPC Class Codes: B32B 2307/3065 Flame resistant or retardant, fire resistant or retardant
• CPC Class Codes: B32B 2375/00 Polyureas; Polyurethanes
• CPC Class Codes: B32B 2601/00 Upholstery
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 5/024 Woven fabric
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: B32B 5/245 another layer next to it being a foam layer
• CPC Class Codes: B32B 5/26 another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: D06M 23/18 for the chemical treatment of borders of fabrics or knittings; for the thermal or chemical fixation of cuttings, seams or fibre ends
• CPC Class Codes: D06Q 1/04 by metallising transfer of metal particles D06Q1/12
• CPC Class Codes: Y10S 297/05 Fireproof
• CPC Class Codes: Y10S 428/92 Fire or heat protection feature
• CPC Class Codes: Y10S 428/921 Fire or flameproofing
• CPC Class Codes: Y10T 428/24529 : and conforming component on an opposite nonplanar surface
• CPC Class Codes: Y10T 428/24603 : Fiber containing component
• CPC Class Codes: Y10T 428/24999 : Inorganic

Abstract

This invention is concerned with flameproofed mattresses, pillows and sleeping bags, pads, cushions for chair or sofas, and so on. The flameproofed materials of the present invention may be formed of (1) a close-woven fabric attached to (2) a thick layer (e.g., 0.1-1 inch) of resilient self-extinguishing polyruethane cushioning foam having (3) a metallized heat-conductive layer, such as of aluminum, which dissipates heat rapidly, thereupon, the metallized foam being secured to (4) filling or padding with (5) a backing fabric secured thereto. The parts are suitably locally secured together by tying means such as stitching, tufting, dielectric welding or the like. The object is to protect the main body of highly combustible filler material in cushions, pillows, mattresses, sofas, upholstered chairs, and the like from fire in case of the dropping of a match, cigarette, or the like on the cover fabric or ticking by someone, such as a careless smoker. Even though the foam is self-extinguishing relative to a lighted cigarette, when not compressed, when it is compressed by tying as by stitching, the heat may be conducted therethrough and ignite the filling or stuffing, if no metal layer is present.

Claims

2. An article according to claim 1 in which the cushioning foam is a polyurethane foam.

3. An article according to claim 1 in which the metal-containing layer comprises crushed foam.

4. An article according to claim 1 in which the thickness of the metal-containing coating is from 0.5 to 6 mils.

5. An article according to claim 2 in which the metal in the metal-containing layer is selected from the group consisting of aluminum, nickel, silver, bismuth, antimony, tin, gold, stainless steel, brass, bronze and Wood'"'"''"'"'s metal.

6. An article according to claim 5 in which the metal is aluminum having a particle size in the range of 0.02 to 0.1 mm. in an organic binder.

7. An article according to claim 6 in which the metal is anodized aluminum.

8. An article according to claim 5 in which the metal is stainless steel having a particle size in the range of 0.02 to 0.1 mm. in an organic binder.

9. An article according to claim 5 in which the metal-containing layer is adhered to said cushioning foam on the side thereof which is adjacent to the filling or padding and in which said latter material is formed of combustible fibers.