US5344697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-retardant barrier structure
Assignee: Individual
•
Filing: 1990-11-30
•
Granted: 1994-09-06
•
Expires: 2010-11-30
Abstract
Abstract Fire-retardant barriers are described which are useful for protecting military personnel and equipment from both fire and chemical and/or biological agents. The fire-retardant barriers are multilayered structures having desirable flammability characteristics and resistance to chemical and/or biological agents. The preferred barriers also possess favorable durability properties and are printable.
Inventors
- 👤 John C. Romanowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:50
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/18; B32B27/20; A; A41; A41D; A41D31/00; A41D31/04; A41D31/08; A41D31/085; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/164; Y10T442/169
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
67 words
A fire retardant barrier comprising: a first film component including a plurality of layers containing a fire retardant material, at least one of said plurality of layers being attached to at least one layer of polymeric material to provide resistance to chemical and biological agents; and a second component attached to the first component including a polymeric material layer for imparting strength to the fire retardant barrier.
Claim 2
Dependent Claim
67 words
A fire retardant barrier comprising: a first film component including a plurality of layers containing a fire retardant material, at least one of said plurality of layers being attached to at least one layer of polymeric material to provide resistance to chemical and biological agents; and a second component attached to the first component including a polymeric material layer for imparting strength to the fire retardant barrier.
Claim 3
Dependent Claim
32 words
A barrier as claimed in claim 1 wherein the first component contains at least three layers and the layer providing resistance to chemical and biological agents has layers on opposite sides thereof.
Claim 4
Dependent Claim
18 words
A barrier as claimed in claims 1 or 2 wherein the second component includes a layer of scrim.
Claim 5
Dependent Claim
25 words
A barrier as claimed in claim 3 wherein the scrim is woven from a high-density polyolefin material sandwiched between two layers of low-density polyolefin material.
Claim 6
Dependent Claim
12 words
A barrier as claimed in claim 4 wherein the polyolefin is polyethylene.
Claim 7
Dependent Claim
26 words
A barrier as claimed in claim 4 wherein the high-density polyolefin material or at least one of the low-density polyolefin layers contains a fire retardant material.
Claim 8
Dependent Claim
21 words
A barrier as claimed in claim 6 wherein all of the polyolefin material in the second component contains fire retardant material.
Claim 9
Dependent Claim
60 words
A barrier as claimed in claim 1 wherein the first layer of the first component is a film selected from the group consisting of a five layered low density polyethylene/ethyl vinyl acetate/copolymer of vinylidene chloride and vinyl chloride/ethyl vinyl acetate/low density polyethylene film; a nylon/copolymer of vinylidene chloride and vinyl chloride hybrid film; ethylene vinyl alcohol film, and combinations thereof.
Claim 10
Dependent Claim
35 words
A barrier as claimed in claim 8 wherein the first layer of the first component is a five layered low density polyethylene/ethyl vinyl acetate/copolymer of vinylidene chloride and vinyl chloride/ethyl vinyl acetate/low density polyethylene film.
Claim 11
Dependent Claim
24 words
A barrier as claimed in claim 2 wherein the fire retardant material in each of the respective layers are independently the same or different.
Claim 12
Dependent Claim
22 words
A barrier as claimed in claim 10 wherein the fire retardant material in at least one of the layers is antimony trioxide.
Claim 13
Dependent Claim
67 words
A fire retardant barrier comprising: a first component including a first layer containing a fire retardant material for resisting chemical and biological agents, and second and third layers on opposite sides of the first layer at least one of which contains a fire retardant material; and a second component including a layer of scrim woven made of high-density polyethylene material and a layer of low-density polyethylene material.
Claim 14
Dependent Claim
67 words
A fire retardant barrier comprising: a first component including a first layer containing a fire retardant material for resisting chemical and biological agents, and second and third layers on opposite sides of the first layer at least one of which contains a fire retardant material; and a second component including a layer of scrim woven made of high-density polyethylene material and a layer of low-density polyethylene material.
Claim 15
Dependent Claim
19 words
A barrier as claimed in claim 12 wherein the second and third layers both contain a fire retardant material.
Claim 16
Dependent Claim
19 words
A barrier as claimed in claim 12 wherein all of the polyethylene containing layers contain a fire retardant material.
Claim 17
Dependent Claim
113 words
A multilaminate barrier having a flammability characteristic of less than about 60 seconds based on Federal Test Method 5903 and a resistance to mustard and thickened GD toxicological agents of at least about 4 hours based on Chemical Research and Development Center - Special Procedure 84010; wherein said multilaminate barrier includes a first film component including a plurality of layers containing a fire retardant material, at least one of said plurality of layers being attached to at least one layer of polymeric material to provide resistance to chemical and biological agents; and a second component attached to the first component including a polymeric material layer for imparting strength to the fire retardant barrier.
Claim 18
Dependent Claim
113 words
A multilaminate barrier having a flammability characteristic of less than about 60 seconds based on Federal Test Method 5903 and a resistance to mustard and thickened GD toxicological agents of at least about 4 hours based on Chemical Research and Development Center - Special Procedure 84010; wherein said multilaminate barrier includes a first film component including a plurality of layers containing a fire retardant material, at least one of said plurality of layers being attached to at least one layer of polymeric material to provide resistance to chemical and biological agents; and a second component attached to the first component including a polymeric material layer for imparting strength to the fire retardant barrier.
Claim 19
Dependent Claim
17 words
A barrier as claimed in claim 15 having a flammability characteristic of less than about 30 seconds.
Claim 20
Dependent Claim
17 words
A barrier as claimed in claim 15 having a flammability characteristic of less than about 20 seconds.
Claim 21
Dependent Claim
17 words
A barrier as claimed in claim 15 having a flammability characteristic of less than about 6 seconds.
Claim 22
Dependent Claim
17 words
A barrier as claimed in claim 15 having a flammability characteristic of less than about 4 seconds.
Claim 23
Dependent Claim
17 words
A barrier as claimed in claim 15 having a flammability characteristic of less than about 2 seconds.
Claim 24
Dependent Claim
14 words
A barrier as claimed in claim 15 having a flammability characteristic approaching zero seconds.
Claim 25
Dependent Claim
22 words
A barrier as claimed in claim 15 having a resistance to mustard and thickened GD toxicological-agents of at least about 12 hours.
Claim 26
Dependent Claim
25 words
A barrier as claimed in claims 15 or 18 having a resistance to mustard and thickened GD toxicological agents of at least about 24 hours.
Claim 27
Dependent Claim
23 words
A barrier as claimed in claim 15 having a resistance to mustard and thickened GD toxicological agents of at least about 36 hours.
Claim 28
Dependent Claim
23 words
A barrier as claimed in claim 15 having a resistance to mustard and thickened GD toxicological agents of at least about 48 hours.
Claim 29
Dependent Claim
23 words
A barrier as claimed in claim 15 having a resistance to mustard and thickened GD toxicological agents of at least about 72 hours.
Claim 30
Dependent Claim
108 words
A multilaminate barrier having a flammability characteristic of less than about 20 seconds based on Federal Test Method 5903 and a resistance to mustard and GD toxicological agents of at least about 50 minutes based on IAW Military Standard - 282; wherein said multilaminate barrier includes a first film component including a plurality of layers containing a fire retardant material, at least one of said plurality of layers being attached to at least one layer of polymeric material to provide resistance to chemical and biological agents; and a second component attached to the first component including a polymeric material layer for imparting strength to the fire retardant barrier.
Claim 31
Dependent Claim
108 words
A multilaminate barrier having a flammability characteristic of less than about 20 seconds based on Federal Test Method 5903 and a resistance to mustard and GD toxicological agents of at least about 50 minutes based on IAW Military Standard - 282; wherein said multilaminate barrier includes a first film component including a plurality of layers containing a fire retardant material, at least one of said plurality of layers being attached to at least one layer of polymeric material to provide resistance to chemical and biological agents; and a second component attached to the first component including a polymeric material layer for imparting strength to the fire retardant barrier.
Claim 32
Dependent Claim
22 words
A barrier as claimed in claim 27 having a resistance to mustard and GB toxicological agents of at least about 100 minutes.
Claim 33
Dependent Claim
22 words
A barrier as claimed in claim 27 having a resistance to mustard and GB toxicological agents of at least about 180 minutes.
Claim 34
Dependent Claim
22 words
A barrier as claimed in claim 27 having a resistance to mustard and GB toxicological agents of at least about 240 minutes.
Claim 35
Dependent Claim
17 words
A barrier as claimed in claim 28 having a flammability characteristic of less than about six seconds.
Claim 36
Dependent Claim
19 words
A barrier as claimed in claim 1 wherein said first component includes about 10 to about 30% fire-retardant material.
Claim 37
Dependent Claim
31 words
A barrier as claimed in claims 3 or 4 wherein said scrim comprises a substrate woven from tapes of approximately 950 denier and 10×10 count per inch in warp and fill.
Claim 38
Dependent Claim
16 words
A barrier as claimed in claim 3 wherein said scrim includes 0.5 and 10% fire-retardant material.
Claim 39
Dependent Claim
35 words
A barrier as claimed in claim 1 wherein said first component is from about 1 to about six millimeters in thickness and said second component includes a scrim layer of about three millimeters in thickness.
Claim 40
Dependent Claim
45 words
A barrier as claimed in claim 35 and further including a top layer of about 0.5 to about 2.0 millimeters thick relatively low-density polyethylene material laminated to the first layer of said first component to add abrasion resistance and serve as a carrier of pigments.
Claim 41
Dependent Claim
64 words
A fire-retardant barrier, comprising: a first component including a plurality of polyolefin-containing layers having a fire-retardant material combined therewith, at least one of said plurality of layers attached to at least one layer of polymeric film, and a second component attached to the first component, said second component including a multilayer system made of a high-density polymer sandwiched between two layers of low-density polymer.
Claim 42
Dependent Claim
64 words
A fire-retardant barrier, comprising: a first component including a plurality of polyolefin-containing layers having a fire-retardant material combined therewith, at least one of said plurality of layers attached to at least one layer of polymeric film, and a second component attached to the first component, said second component including a multilayer system made of a high-density polymer sandwiched between two layers of low-density polymer.
Claim 43
Dependent Claim
14 words
The barrier of claim 37, wherein the high-density polymer and low-density polymer comprise polyolefins.
Claim 44
Dependent Claim
10 words
The barrier of claim 38, wherein the polyolefin is polyethylene.
Claim 45
Dependent Claim
12 words
The barrier of claim 37, wherein the multilayer system comprises woven scrim.
References Cited (Backward Citations)
US4726987A
Cited
US4975316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-09-05 | 1998-03-07 | 1998-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-05 | 2002-03-07 | 2002-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-05 | 2006-03-07 | 2006-09-06 | $7700.00 | Window Closed / Lapsed |