Patent USRE25203E successfully refreshed from Google Patents.
Patent US4304812A successfully refreshed from Google Patents.
US4304812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backcoating of open weave fabric
Assignee: Celanese Corp
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Filing: 1980-09-22
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Granted: 1981-12-08
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Expires: 2000-09-22
Abstract
Abstract This invention provides a process for backcoating an open weave textile fabric without penetration by the backcoat medium to the face of the fabric. The process involves applying a temporary protective coating to the face of the fabric, backcoating the fabric with a permanent polymeric layer, and then removing the protective coating with a solvent medium.
Inventors
- 👤 J. W. Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:24
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0047; D06N7/0049; B32B2255/00; B32B2255/02; B32B2255/26; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/15
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
64 words
A process for backcoating an open weave textile fabric which comprises (1) applying a protective coating to the front of the fabric in the form of a resilient continuous film; (2) applying a flexible polymer coating layer to the back of the fabric; and (3) contacting the coated fabric with a solvent medium which removes the protective coating from the face of the fabric.
Claim 2
Dependent Claim
64 words
A process for backcoating an open weave textile fabric which comprises (1) applying a protective coating to the front of the fabric in the form of a resilient continuous film; (2) applying a flexible polymer coating layer to the back of the fabric; and (3) contacting the coated fabric with a solvent medium which removes the protective coating from the face of the fabric.
Claim 3
Dependent Claim
80 words
A process for producing a laminated open weave textile fabric having good hand and drape properties which comprises (1) applying a temporary protective coating to the front surface of the fabric in the form of a resilient continuous film of a water-soluble resin; (2) coating the back surface of the fabric with a flexible layer of polymeric foam, and (3) contacting the coated fabric with an aqeuous medium to remove the water-soluble resin film from the face of the fabric.
Claim 4
Dependent Claim
80 words
A process for producing a laminated open weave textile fabric having good hand and drape properties which comprises (1) applying a temporary protective coating to the front surface of the fabric in the form of a resilient continuous film of a water-soluble resin; (2) coating the back surface of the fabric with a flexible layer of polymeric foam, and (3) contacting the coated fabric with an aqeuous medium to remove the water-soluble resin film from the face of the fabric.
Claim 5
Dependent Claim
23 words
A process in accordance with claim 2 wherein the temporary protective coating in step (1) is a gelled foam of a hydrocolloid gum.
Claim 6
Dependent Claim
23 words
A process in accordance with claim 2 wherein the temporary protective coating in step (1) is a gelled foam of a polygalactomannan gum.
Claim 7
Dependent Claim
22 words
A process in accordance with claim 2 wherein the temporary protective coating in step (1) is a gelled foam of guar gum.
Claim 8
Dependent Claim
22 words
A process in accordance with claim 2 wherein the temporary protective coating in step (1) is gelled foam of locust bean gum.
Claim 9
Dependent Claim
22 words
A process in accordance with claim 2 wherein the polymeric foam layer in step (2) is densified by the application of pressure.
Claim 10
Dependent Claim
19 words
A process in accordance with claim 2 wherein the polymeric foam layer in step (2) is a polyacrylic foam.
Claim 11
Dependent Claim
18 words
A process in accordance with claim 2 wherein the polymer foam layer in step (2) is subsequently cured.
Claim 12
Dependent Claim
13 words
A laminated open weave textile fabric produced by the process of claim 2.
Claim 13
Dependent Claim
20 words
A laminated open weave textile fabric produced by the process of claim 2, wherein the fabric is durable crease treated.
Claim 14
Dependent Claim
19 words
A laminated open weave textile fabric produced by the process of claim 2, wherein the fabric is compressively shrunk.
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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) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |