Patent US4753840A successfully refreshed from Google Patents.
US4753840A
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US
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Coated fabric
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1985-01-10
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Granted: 1988-06-28
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Expires: 2005-01-10
Abstract
Abstract A coated fabric comprises a base ply of a fiber material such as a non-woven fiber material, for example, a polypropylene non-woven material, having a thermoplastic film, for example, an ethylene methyl acrylate film, bonded thereto. The base ply has densified and undensified portions thereof, the densified portions defining densified areas on a coating surface of the base ply, and the thermoplastic film is heat-bonded to the coating surface at least at the densified portions thereof. A method of making the coated fabric comprises contacting the thermoplastic film in heat-softened condition with the coating surface of the base ply, and allowing the film to cool.
Inventors
- 👤 Paul T. Van Gompel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:28
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B27/30; B32B27/308; B32B27/32; B32B27/34; B32B3/00; B32B3/26; B32B3/28; B32B5/00; B32B5/02; B32B5/022; B32B5/14; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2262/0261; B32B2262/04; B32B2305/00; B32B2305/10; B32B2305/20; B32B2307/00; B32B2307/30; B32B2307/31; B32B2323/00; B32B2323/04; B32B2323/10; B32B2377/00; B32B2437/00; B32B2555/00; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24595; Y10T428/24603; Y10T428/24612; Y10T428/24942; Y10T428/24992
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
110 words
A coated fabric comprising: a base ply of non-woven fiber material having densified and undensified portions thereof defining an interspersed pattern of densified and undensified areas on at least one surface, designated as the coating surface, of the base ply; and a thermoplastic film heat-bonded to the coating surface at least at the densified areas thereof, the depth of penetration of the film into the base ply being limited to less than the entire depth of the base ply so that the thermoplastic film comprises a surface coating only on the coating surface of the base ply with an opposite surface of the base ply retaining its fibrous characteristics thereon.
Claim 2
Dependent Claim
110 words
A coated fabric comprising: a base ply of non-woven fiber material having densified and undensified portions thereof defining an interspersed pattern of densified and undensified areas on at least one surface, designated as the coating surface, of the base ply; and a thermoplastic film heat-bonded to the coating surface at least at the densified areas thereof, the depth of penetration of the film into the base ply being limited to less than the entire depth of the base ply so that the thermoplastic film comprises a surface coating only on the coating surface of the base ply with an opposite surface of the base ply retaining its fibrous characteristics thereon.
Claim 3
Dependent Claim
51 words
The fabric of claim 1 wherein the fiber density of the densified portions of the base ply is at least about one and one-fourth times greater than that of the undensified portions of the base ply and the densified portions define a repeating pattern of densified portions in the base ply.
Claim 4
Dependent Claim
18 words
The fabric of claim 1 wherein the densified portions are flush with or protrude above the coating surface.
Claim 5
Dependent Claim
14 words
The fabric of claim 1 wherein the fiber material comprises a polyolefin fiber material.
Claim 6
Dependent Claim
35 words
The fabric of claim 1 wherein the base ply comprises fibers selected from the group consisting of polypropylene, polyethylene, polypropylene sheathed with polyethylene, polyesters, rayon, nylon and blends of two or more of the foregoing.
Claim 7
Dependent Claim
48 words
The fabric of claim 1 including undensified portions defining discrete undensified surface areas on the coating surface of about 1/4 to 25 square millimeters each and interspersed among discrete densified portions defining discrete densified surface areas on the coating surface of about 1 to 8 square millimeters each.
Claim 8
Dependent Claim
47 words
The fabric of claim 6 wherein the thermoplastic film is selected from the group consisting of polymers of propylene, ethylene methyl acrylate, ethylene vinylacetate, ethylene, block copolymers of butadiene and styrene, ethylene ethyl acrylate, ethylene methyl methacrylates and compatible copolymers of two or more of the foregoing.
Claim 9
Dependent Claim
14 words
The fabric of claim 7 wherein the thermoplastic film comprises an ethylene acrylate film.
Claim 10
Dependent Claim
15 words
The fabric of claim 8 wherein the thermoplastic film comprises an ethylene methyl acrylate film.
Claim 11
Dependent Claim
55 words
The fabric of claim 1 wherein the base ply comprises a polypropylene fiber material having a fabric weight of about 0.35 to 2 ounces per square yard and a thickness of about 6 to 12 mils, and the thermoplastic film comprises ethylene methyl acrylate and has a film thickness of about 0.4 to 10 mils.
Claim 12
Dependent Claim
23 words
A multi-ply incontinence control garment wherein the outermost ply thereof comprises the fabric of claim 1 with the base ply thereof facing outwardly.
Claim 13
Dependent Claim
23 words
A multi-ply incontinence control garment wherein the outermost ply thereof comprises the fabric of claim 9 with the base ply thereof facing outwardly.
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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |