US4806185A
Expired / Lapsed
US
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Method of making coated fire barriers for upholstered furnishings
Assignee: Springs Industries Inc
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Filing: 1987-07-16
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Granted: 1989-02-21
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Expires: 2007-07-16
Abstract
Abstract A method for increasing heat dissipation from the smolder or open flame site of an upholstered article by interposing a fire barrier material between the outer upholstery fabric and the filler or padding materials. The fire barrier material is formed by coating a fibrous substance, such as glass fibers, carbon fibers, and the like with a latex containing a finely divided heat conductive metal.
Inventors
- 👤 Rick A. Porter
- 👤 Hans R. Hoernle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:22
CPC Classifications
D; D01; D01F; D01F11/00; D01F11/10; D01F11/12; D01F11/127; Y; Y10; Y10S; Y10S297/00; Y10S297/05; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/30; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2656
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
121 words
A method for forming a fire resistant upholstered article comprising an outer upholstery fabric that houses and contains filler materials, comprising interposing a fire barrier material between the outer upholstery fabric and the filler materials; wherein said fire barrier material is formed by coating a fibrous substance selected from the group consisting of glass, carbon, polyaramid, polybenzimidazole, polymeta-phenylene diamine isophthalate, and combinations thereof, with a latex of enhanced thermal conductivity containing a finely divided heat conductive metal selected from the group consisting of aluminum, copper, nickel, andmixtures thereof, and wherein said interposed fire barrier-upholstered fabric has a porosity rating of less than 10 cubic feet of air per minute per square foot measured at a pressure of 1/2 inch of water.
Claim 2
Independent Claim
121 words
A method for forming a fire resistant upholstered article comprising an outer upholstery fabric that houses and contains filler materials, comprising interposing a fire barrier material between the outer upholstery fabric and the filler materials; wherein said fire barrier material is formed by coating a fibrous substance selected from the group consisting of glass, carbon, polyaramid, polybenzimidazole, polymeta-phenylene diamine isophthalate, and combinations thereof, with a latex of enhanced thermal conductivity containing a finely divided heat conductive metal selected from the group consisting of aluminum, copper, nickel, andmixtures thereof, and wherein said interposed fire barrier-upholstered fabric has a porosity rating of less than 10 cubic feet of air per minute per square foot measured at a pressure of 1/2 inch of water.
Claim 3
Dependent Claim
12 words
The method of claim 1, wherein said fire barrier material is porous.
Claim 4
Dependent Claim
12 words
The method of claim 2, wherein said fire barrier material is non-porous.
Claim 5
Dependent Claim
29 words
The method of claim 1, wherein the fibrous fire barrier material contains additives selected from the group consisting of aluminum trihydrate, chlorinated hydrocarbons, kaolin, antimony trioxide, and mixtures thereof.
Claim 6
Dependent Claim
24 words
The method of claim 1, wherein the fire barrier material increases heat dissipation from the smolder or open flame site of the upholstered article.
Claim 7
Dependent Claim
29 words
The method of claim 5, wherein the smolder site is caused by a low heat fire having a heat flux of about 0.3 watts per square centimeter or less.
Claim 8
Dependent Claim
22 words
The method of claim 2, wherein the filling material is selected from the group consisting of rubber, cellulose, polyester, and mixtures thereof.
Claim 9
Dependent Claim
11 words
The method of claim 7, wherein said polyester is a polyurethane.
Claim 10
Dependent Claim
35 words
The method of claim 1, wherein the thermal conductivity of the upholstered material is reduced by including therein insulating materials selected from the group consisting of flocked fabrics, bulky nonwovens, tufted products, and expanded particles.
Claim 11
Dependent Claim
26 words
The method of claim 9, wherein the upholstered material has structural stiffness at elevated temperatures sufficient to retain the integrity of the insulating void spaces therein.
Claim 12
Dependent Claim
62 words
The method of claim 10, wherein the structural stiffness is imparted by at least one of the following: (a) cellulosic materials treated with borates and phosphates; (b) precombusted materials selected from the group consisting of carbon fibers, glass fibers, glass spheres, vermiculite, or combinations thereof; (c) highly inorganic filled foams selected from the group consisting of acrylic/clay, urethane/aluminum trihydrate, or mixtures thereof.
Claim 13
Dependent Claim
19 words
The method of claim 1, wherein the porous latex coating is formed by coating with a foamed latex base.
Claim 14
Dependent Claim
20 words
The method of claim 12, wherein the foam is a semi-stable foam which collapses when subjected to a mechanical force.
Claim 15
Dependent Claim
21 words
The method of claim 1, wherein the porous latex coating is formed by coating with an unfoamed paste at limited add-on.
Claim 16
Dependent Claim
23 words
The method of claim 1, wherein the porous latex coating is formed by coating with an impermeable coating mechanically treated to produce porosity.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |