US4801491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-resistant and high-strength laminate
Assignee: Toyobo Co Ltd
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Filing: 1988-04-20
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Granted: 1989-01-31
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Expires: 2008-04-20
Abstract
Abstract A water-resistant and high-strength laminate which comprises a base cloth of woven or knitted cloth obtained by weaving or knitting warps and wefts wherein at least a portion of warps and/or wefts is ultra-high-strength-polyethylene filaments and a majority of the rest is polyester fibers, at least one surface of said base cloth being laminated with a biaxially oriented polyester film through an adhesive layer.
Inventors
- 👤 Toshikiyo Tanaka
- 👤 Ichiro Yoshida
- 👤 Hiroshi Yasuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:27
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B27/36; B32B5/00; B32B5/02; B32B5/024; B32B5/026; B32B5/08; B32B7/00; B32B7/04; B32B7/12; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/067; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2262/0276; B32B2262/14; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/518; B32B2307/70; B32B2307/726; B32B2307/7265; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/27; Y10T442/00; Y10T442/30; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/326; Y10T442/3285; Y10T442/3854; Y10T442/3862; Y10T442/40; Y10T442/45
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
A water-resistant and high-strength laminate which comprises a base cloth of woven or knitted cloth obtained by weaving or knitting warps and wefts wherein at least a portion of warps and/or wefts is ultra-high-strength-polyethylene filaments and a majority of the rest is polyester fibers, at least one surface of said base cloth being laminated with a biaxially oriented polyester film through an adhesive layer.
Claim 2
Dependent Claim
64 words
A water-resistant and high-strength laminate which comprises a base cloth of woven or knitted cloth obtained by weaving or knitting warps and wefts wherein at least a portion of warps and/or wefts is ultra-high-strength-polyethylene filaments and a majority of the rest is polyester fibers, at least one surface of said base cloth being laminated with a biaxially oriented polyester film through an adhesive layer.
Claim 3
Dependent Claim
17 words
The water-resistant and high-strength laminate according to claim 1, wherein said warps and/or wefts are not twisted.
Claim 4
Dependent Claim
22 words
The water-resistant and high-strength laminate according to claim 1, wherein monofilament denier of said warps and/or wefts is 0.5 to 20 denier.
Claim 5
Dependent Claim
22 words
The water-resistant and high-strength laminate according to claim 1, wherein total denier of said warps and/or wefts is 50 to 800 denier.
Claim 6
Dependent Claim
25 words
The water-resistant and high-strength laminate according claim 1, wherein tensile strength of said warps and/or wefts containing ultra-high-strength-polyethylene filaments is not less than 15 g/denier.
Claim 7
Dependent Claim
24 words
The water-resistant and high-strength laminate according to claim 1, wherein weight of said woven or knitted cloth is 20 to 250 g/m 2 .
Claim 8
Dependent Claim
22 words
The water-resistant and high-strength laminate according to claim 1, wherein thickness of said biaxially oriented polyester film is 12 to 125 μm.
References Cited (Backward Citations)
US4590121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |