US4010306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for impregnating and coating triaxial weave fabrics
Assignee: EIDP Inc
•
Filing: 1975-06-02
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Granted: 1977-03-01
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Expires: 1995-06-02
Abstract
Abstract An improvement in processes for impregnating and coating triaxial weave fabrics is provided. The improvement is laminating a lightweight sheet structure based on continuous filament synthetic organic fiber to the triaxial weave fabric and then impregnating and coating the laminate with a polymeric film using known techniques.
Inventors
- 👤 Joseph P. Fagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:00
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0086; D06M; D06M17/00; Y; Y10; Y10S; Y10S139/00; Y10S139/01; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/27; Y10T442/00; Y10T442/30; Y10T442/3179; Y10T442/3187
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
In a process for impregnating and coating a triaxial weave fabric with a polymeric composition, the improvement comprising: laminating a lightweight nonwoven sheet structure based on continuous filament synthetic organic fiber to the triaxial weave fabric and then impregnating and coating the resulting laminate with the polymeric composition; wherein the triaxial weave fabric is of a yarn of the groups of glass, polyester, polyamide, or aromatic aramide and weighs no more than about two ounces per square yard; the sheet structure is of a yarn selected from the group of polyester or polypropylene and weighs no more than about 0.5 ounces per square yard and has a thickness of no more than about 3 mils; and the polymeric composition is from the group of polychloroprene, chlorosulfonated polyethylene, polyurethane, or polyvinylchloride.
Claim 2
Dependent Claim
130 words
In a process for impregnating and coating a triaxial weave fabric with a polymeric composition, the improvement comprising: laminating a lightweight nonwoven sheet structure based on continuous filament synthetic organic fiber to the triaxial weave fabric and then impregnating and coating the resulting laminate with the polymeric composition; wherein the triaxial weave fabric is of a yarn of the groups of glass, polyester, polyamide, or aromatic aramide and weighs no more than about two ounces per square yard; the sheet structure is of a yarn selected from the group of polyester or polypropylene and weighs no more than about 0.5 ounces per square yard and has a thickness of no more than about 3 mils; and the polymeric composition is from the group of polychloroprene, chlorosulfonated polyethylene, polyurethane, or polyvinylchloride.
Claim 3
Dependent Claim
110 words
A laminate consisting of: lightweight nonwoven sheet structure based on continuous filament synthetic organic fiber, laminated to a triaxial weave fabric; being impregnated and coated with a polymeric composition, wherein the triaxial weave fabric is selected from the group of glass, polyester, plyamide, or aromatic aramide; and weighs no more than about two ounces per square yard; the sheet structure is of a yarn selected from the group of polyester or polypropylene, and weighs no more than about 0.5 ounces per square yard and has a thickness of no more than about 3 mil; and the polymeric composition is selected from the group of polychloroprene, chlorosulfonated polyethylene, polyurethane, or polyvinylchloride.
Claim 4
Dependent Claim
110 words
A laminate consisting of: lightweight nonwoven sheet structure based on continuous filament synthetic organic fiber, laminated to a triaxial weave fabric; being impregnated and coated with a polymeric composition, wherein the triaxial weave fabric is selected from the group of glass, polyester, plyamide, or aromatic aramide; and weighs no more than about two ounces per square yard; the sheet structure is of a yarn selected from the group of polyester or polypropylene, and weighs no more than about 0.5 ounces per square yard and has a thickness of no more than about 3 mil; and the polymeric composition is selected from the group of polychloroprene, chlorosulfonated polyethylene, polyurethane, or polyvinylchloride.
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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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |