US4433024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduced-stress vapor-sorptive garments
Assignee: 3M Co
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Filing: 1982-07-23
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Granted: 1984-02-21
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Expires: 2002-07-23
Abstract
Abstract Vapor-sorbing particle-filled sheet material having a low insulation value and useful for providing reduced-stress vapor-sorbing garments. The sheet material comprises at least one permeable support fabric attached to a fibrous web which comprises a coherent mass of melt-blown fibers and vapor-sorptive particles dispersed in the mass of fibers.
Inventors
- 👤 Gilbert L. Eian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; A; A41; A41D; A41D31/00; A41D31/04; A41D31/10; A62; A62B; A62B17/00; A62B17/006; B32B5/02; B32B5/024; B32B7/00; B32B7/04; B32B7/12; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; B32B2305/00; B32B2305/02; B32B2305/026; B32B2323/00; B32B2323/10; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/25; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/30; Y10T428/31504; Y10T428/3154; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3602; Y10T442/3699
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
73 words
Reduced-stress vapor-sorbing garment having as one component sheet material which comprises a permeable support fabric and, attached to the permeable support fabric, a fibrous web which exhibits an insulation value of less than about 0.4 clo and which comprises a coherent mass of melt-blown organic polymeric fibers and vapor-sorptive particles uniformly dispersed in the mass of fibers in an amount of at least 15 grams per square meter area of the sheet material.
Claim 2
Dependent Claim
73 words
Reduced-stress vapor-sorbing garment having as one component sheet material which comprises a permeable support fabric and, attached to the permeable support fabric, a fibrous web which exhibits an insulation value of less than about 0.4 clo and which comprises a coherent mass of melt-blown organic polymeric fibers and vapor-sorptive particles uniformly dispersed in the mass of fibers in an amount of at least 15 grams per square meter area of the sheet material.
Claim 3
Dependent Claim
25 words
A garment of claim 1 in which said permeable support fabric and fibrous web are adhered together by a discontinuous adhesive layer disposed between them.
Claim 4
Dependent Claim
21 words
A garment of claim 2 in which said permeable support fabric and fibrous web are further attached together by ultrasonic welding.
Claim 5
Dependent Claim
20 words
A garment of claim 1 in which said permeable support fabric and fibrous web are attached together by ultrasonic welding.
Claim 6
Dependent Claim
12 words
A garment of claim 1 in which the particles comprise activated carbon.
Claim 7
Dependent Claim
12 words
A garment of claim 1 in which the melt-blown fibers comprise polypropylene.
Claim 8
Dependent Claim
20 words
A garment of claim 1 in which the vapor-sorptive particles comprise at least about 20 volume-percent of the fibrous web.
Claim 9
Dependent Claim
15 words
A garment of claim 1 in which the permeable support fabric carries a water-repelling treatment.
Claim 10
Dependent Claim
19 words
A garment of claim 8 in which the water repelling treatment comprises a microporous membrane adhered to the fabric.
Claim 11
Dependent Claim
19 words
A garment of claim 1 in which a permeable fabric is attached to both sides of the fibrous web.
Claim 12
Dependent Claim
31 words
A garment of any of claims 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 in which the fibrous web has a thickness of less than about 2 millimeters.
Claim 13
Dependent Claim
96 words
Reduced-stress vapor-sorbing garment having as one component sheet material which comprises first and second permeable support fabrics, and attached between the permeable support fabrics, a fibrous web which exhibits an insulation value of less than 0.4 clo and which comprises a coherent mass less than 2 millimeters in thickness of melt-blown organic polymeric fibers containing activated carbon particles uniformly dispersed in the mass of fibers in an amount of at least 50 grams per square meter area of the sheet material and in an amount accounting for at least about 50 volume-percent of the fibrous web.
Claim 14
Dependent Claim
96 words
Reduced-stress vapor-sorbing garment having as one component sheet material which comprises first and second permeable support fabrics, and attached between the permeable support fabrics, a fibrous web which exhibits an insulation value of less than 0.4 clo and which comprises a coherent mass less than 2 millimeters in thickness of melt-blown organic polymeric fibers containing activated carbon particles uniformly dispersed in the mass of fibers in an amount of at least 50 grams per square meter area of the sheet material and in an amount accounting for at least about 50 volume-percent of the fibrous web.
Claim 15
Dependent Claim
22 words
A garment of claim 12 in which said support fabrics and fibrous web are adhered together by adhesive layers disposed between them.
Claim 16
Dependent Claim
20 words
A garment of claim 13 in which said support fabrics and fibrous web are further attached together by ultrasonic welding.
Claim 17
Dependent Claim
24 words
A garment of claim 12 in which at least one of said support fabrics and the fibrous web are attached together by ultrasonic welding.
Claim 18
Dependent Claim
12 words
A garment of claim 12 in which the particles comprise activated carbon.
Claim 19
Dependent Claim
12 words
A garment of claim 12 in which the melt-blown fibers comprise polypropylene.
Claim 20
Dependent Claim
15 words
A garment of claim 12 in which the first permeable fabric is a woven fabric.
Claim 21
Dependent Claim
19 words
A garment of claim 12 in which at least one of the permeable support fabrics carries a water-repelling treatment.
Claim 22
Dependent Claim
18 words
A garment of claim 19 in which the water-repelling treatment comprises a microporous membrane adhered to the fabric.
Claim 23
Dependent Claim
88 words
Vapor-sorbing particle-containing sheet material adapted for use in a reduced-stress vapor-sorbing garment, said sheet material comprising a permeable support fabric having a grab strength of at least 500 kilograms/centimeter of thickness and, attached to the permeable support fabric, a fibrous web which exhibits an insulation value of less than about 0.4 clo and which comprises a coherent mass of melt-blown organic polymeric fibers and vapor-sorptive particles uniformly dispersed in the mass of fibers in an amount of at least 15 grams per square meter of the sheet material.
Claim 24
Dependent Claim
88 words
Vapor-sorbing particle-containing sheet material adapted for use in a reduced-stress vapor-sorbing garment, said sheet material comprising a permeable support fabric having a grab strength of at least 500 kilograms/centimeter of thickness and, attached to the permeable support fabric, a fibrous web which exhibits an insulation value of less than about 0.4 clo and which comprises a coherent mass of melt-blown organic polymeric fibers and vapor-sorptive particles uniformly dispersed in the mass of fibers in an amount of at least 15 grams per square meter of the sheet material.
Claim 25
Dependent Claim
25 words
Sheet material of claim 21 in which said permeable support fabric and fibrous web are adhered together by a discontinuous adhesive layer disposed between them.
Claim 26
Dependent Claim
21 words
Sheet material of claim 22 in which said permeable support fabric and fibrous web are further attached together by ultrasonic welding.
Claim 27
Dependent Claim
20 words
Sheet material of claim 21 in which said permeable support fabric and fibrous web are attached together by ultrasonic welding.
Claim 28
Dependent Claim
12 words
Sheet material of claim 21 in which the particles comprise activated carbon.
Claim 29
Dependent Claim
12 words
Sheet material of claim 21 in which the melt-blown fibers comprise polypropylene.
Claim 30
Dependent Claim
20 words
Sheet material of claim 21 in which the vapor-sorptive particles comprise at least about 20 volume-percent of the fibrous web.
Claim 31
Dependent Claim
15 words
Sheet material of claim 21 in which the permeable support fabric carries a water-repelling treatment.
Claim 32
Dependent Claim
19 words
Sheet material of claim 28 in which the water repelling treatment comprises a microporous membrane adhered to the fabric.
Claim 33
Dependent Claim
19 words
Sheet material of claim 21 in which a permeable fabric is attached to both sides of the fibrous web.
Claim 34
Dependent Claim
16 words
Sheet material of claim 21 which has an insulation value of less than about 0.2 clo.
Claim 35
Dependent Claim
109 words
Vapor-sorbing particle-containing sheet material adapted for use in a reduced-stress vapor-sorbing garment, said sheet material comprising first and second permeable support fabrics at least one of which has a grab strength of at least 500 kilograms/centimeter of thickness and, attached to the permeable support fabric, a fibrous web which exhibits an insulation value of less than about 0.2 clo and which comprises a coherent mass of melt-blown organic polymeric fibers and vapor-sorptive particles uniformly dispersed in the mass of fibers in an amount of at least 50 grams per square meter of the sheet material and in an amount accounting for at least 50 volume-percent of the fibrous web.
Claim 36
Dependent Claim
109 words
Vapor-sorbing particle-containing sheet material adapted for use in a reduced-stress vapor-sorbing garment, said sheet material comprising first and second permeable support fabrics at least one of which has a grab strength of at least 500 kilograms/centimeter of thickness and, attached to the permeable support fabric, a fibrous web which exhibits an insulation value of less than about 0.2 clo and which comprises a coherent mass of melt-blown organic polymeric fibers and vapor-sorptive particles uniformly dispersed in the mass of fibers in an amount of at least 50 grams per square meter of the sheet material and in an amount accounting for at least 50 volume-percent of the fibrous web.
Claim 37
Dependent Claim
25 words
Sheet material of claim 32 in which said permeable support fabric and fibrous web are adhered together by a discontinuous adhesive layer disposed between them.
Claim 38
Dependent Claim
21 words
Sheet material of claim 33 in which said permeable support fabric and fibrous web are further attached together by ultrasonic welding.
Claim 39
Dependent Claim
20 words
Sheet material of claim 32 in which said permeable support fabric and fibrous web are attached together by ultrasonic welding.
Claim 40
Dependent Claim
12 words
Sheet material of claim 32 in which the melt-blown fibers comprise polypropylene.
Claim 41
Dependent Claim
15 words
Sheet material of claim 32 in which the permeable support fabric carries a water-repelling treatment.
Claim 42
Dependent Claim
19 words
Sheet material of claim 37 in which the water repelling treatment comprises a microporous membrane adhered to the fabric.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |