Patent US4738894A successfully refreshed from Google Patents.
US4738894A
Expired / Lapsed
US
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Process and composition for trapping liquids
Assignee: Individual
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Filing: 1987-03-11
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Granted: 1988-04-19
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Expires: 2007-03-11
Abstract
Abstract The invention relates to a process and composition for trapping coloring or non-coloring liquids, in a non-woven textile consisting of fibers, characterized in that said textile is metallized under vacuum by spraying metal particles onto at least one face of the textile and along a portion of its thickness in such a way that the surface fibers, or those in the immediate vicinity of the surface, are coated with metal while remaining independent of each other.
Inventors
- 👤 Pierre Borde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:19
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/83; B; B05; B05B; B05B12/00; B05B12/16; B05B12/20; B05B12/24; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/29; Y10T428/2913; Y10T428/2927; Y10T442/00; Y10T442/60; Y10T442/654; Y10T442/657; Y10T442/658; Y10T442/659; Y10T442/673
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
122 words
A composition for trapping coloring or non-coloring liquids comprising, a non-woven textile substrate having polypropylene fibers and first and second surfaces, and a first coating of metal particles applied under a vacuum on said first surface of said textile and along a portion of its thickness whereupon fibers at or proximate to said surface are coated with said metal particles in a quantity of 0.5 to 1 g/m 2 for 30 to 80 g/m 2 of polypropylene, to achieve a metallized layer, said fibers remaining independent of each other, a second coating affixed to said second surface and selected from the group consisting of a second said metallized layer, an extruded polyethylene plastic film impermeable to liquid, and an additional textile material.
Claim 2
Dependent Claim
122 words
A composition for trapping coloring or non-coloring liquids comprising, a non-woven textile substrate having polypropylene fibers and first and second surfaces, and a first coating of metal particles applied under a vacuum on said first surface of said textile and along a portion of its thickness whereupon fibers at or proximate to said surface are coated with said metal particles in a quantity of 0.5 to 1 g/m 2 for 30 to 80 g/m 2 of polypropylene, to achieve a metallized layer, said fibers remaining independent of each other, a second coating affixed to said second surface and selected from the group consisting of a second said metallized layer, an extruded polyethylene plastic film impermeable to liquid, and an additional textile material.
Claim 3
Dependent Claim
71 words
A composition for trapping coloring or non-coloring liquids comprising, a non-woven textile substrate having fibers and first and second surfaces, and a coating of metal particles applied under a vacuum on at least one surface of said textile and along a portion of its thickness whereupon fibers at or proximate to said surface are coated with said metal particles to achieve a metallized layer, said fibers remaining independent of each other.
Claim 4
Dependent Claim
71 words
A composition for trapping coloring or non-coloring liquids comprising, a non-woven textile substrate having fibers and first and second surfaces, and a coating of metal particles applied under a vacuum on at least one surface of said textile and along a portion of its thickness whereupon fibers at or proximate to said surface are coated with said metal particles to achieve a metallized layer, said fibers remaining independent of each other.
Claim 5
Dependent Claim
26 words
A composition according to claim 2 additionally comprising a second liquid trapping layer provided to the surface of the textile opposite the one said metallized layer.
Claim 6
Dependent Claim
22 words
A composition according to claim 3, wherein the second liquid trapping layer comprises a plastic film material that is impermeable to liquids.
Claim 7
Dependent Claim
13 words
A composition according to claim 4 wherein the plastic film is extruded polyethylene.
Claim 8
Dependent Claim
19 words
A composition according to claim 2 wherein both surfaces are coated with said metal particles to achieve metallized layers.
Claim 9
Dependent Claim
14 words
A composition according to claim 2 wherein the fibers of the textile are polypropylene.
Claim 10
Dependent Claim
23 words
A composition according to claim 9 wherein a second textile is provided adjacent to the surface opposite at least one said metallized layer.
Claim 11
Dependent Claim
67 words
A process for trapping coloring or non-coloring liquids in a non-woven textile consisting of fibers, comprising the step of spraying metal particles under a vacuum on at least one surface of said textile and along a portion of its thickness whereupon fibers at or proximate to said surface are coated with said metal particles to achieve a metallized layer, with said fibers remaining independent of each other.
Claim 12
Dependent Claim
67 words
A process for trapping coloring or non-coloring liquids in a non-woven textile consisting of fibers, comprising the step of spraying metal particles under a vacuum on at least one surface of said textile and along a portion of its thickness whereupon fibers at or proximate to said surface are coated with said metal particles to achieve a metallized layer, with said fibers remaining independent of each other.
Claim 13
Dependent Claim
26 words
A process according to claim 9, wherein a second liquid trapping layer is provided to the surface of the textile opposite the one said metallized layer.
Claim 14
Dependent Claim
22 words
A process according to claim 10, wherein the second liquid trapping layer comprises a plastic film material that is impermeable to liquids.
Claim 15
Dependent Claim
13 words
A process according to claim 11 wherein the plastic film is extruded polyethylene.
Claim 16
Dependent Claim
19 words
A process according to claim 9 wherein both surfaces are coated with said metal particles to achieve metallized layers.
Claim 17
Dependent Claim
14 words
A process according to claim 9 wherein the fibers of the textile are polypropylene.
Claim 18
Dependent Claim
20 words
A process according to claim 9 wherein a second textile is provided adjacent to the surface opposite said metallized layer.
References Cited (Backward Citations)
US4540625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |