Patent US4847142A successfully refreshed from Google Patents.
US4847142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture permeable film for lamination to a textile material
Assignee: Honeywell International Inc
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Filing: 1988-11-21
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Granted: 1989-07-11
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Expires: 2008-11-21
Abstract
Abstract This invention is a water-resistant film for lamination to a textile material, and the flexible, laminated product produced therewith. The film has a permeability of at least 0.0008 metric perm-cm. at 20° C. and 65 percent relative humidity and of at least 0.0006 metric perm-cm. at 30° C. and 50 percent relative humidity. The film is formed from a block copolymer having a number average molecular weight of from about 15,000 to about 35,000. The block copolymer contains polymer segments prepared by the amination of a polyether formed by treating a polyethylene glycol with an alkylene oxide of three or more carbon atoms. The product is a laminant of a layer of the described film and a layer of a textile material, and is useful in the formation of water-resistant, moisture permeable articles such as garments, tarpaulins, tents, and the like.
Inventors
- 👤 Ian C. Twilley
- 👤 Robert A. Lofquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:28
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; B; B32; B32B; B32B27/00; B32B27/12; C08G; C08G69/00; C08G69/40; D; D06; D06N; D06N3/00; D06N3/12; D06N3/125; C08J2371/00; C08J2371/02; C08J2377/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/24998; Y10T428/249982; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/3894
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A flexible, laminated product comprising: A. a water-resistant film layer having a permeability of at least 0.0008 metric perm-cm. when tested at 20° C. and 65 percent relative humidity and of at least 0.0006 metric perm-cm. when tested at 30° C. and 50 percent relative humidity, said film layer being formed from a block copolyether amide having a number average molecular weight of from about 15,000 to about 35,000 and containing polymer segments, said segments being prepared by the amination of a polyether formed by treating a polyethylene glycol with an alkylene oxide having at least three carbon atoms; and B. a textile material layer.
Claim 2
Dependent Claim
105 words
A flexible, laminated product comprising: A. a water-resistant film layer having a permeability of at least 0.0008 metric perm-cm. when tested at 20° C. and 65 percent relative humidity and of at least 0.0006 metric perm-cm. when tested at 30° C. and 50 percent relative humidity, said film layer being formed from a block copolyether amide having a number average molecular weight of from about 15,000 to about 35,000 and containing polymer segments, said segments being prepared by the amination of a polyether formed by treating a polyethylene glycol with an alkylene oxide having at least three carbon atoms; and B. a textile material layer.
Claim 3
Dependent Claim
12 words
The product of claim 1 wherein said textile material comprises a polyamide.
Claim 4
Dependent Claim
20 words
The product of claim 2 wherein said polyamide is selected from the group consisting of nylon 6 and nylon 6,6.
Claim 5
Dependent Claim
10 words
The product of claim 3 wherein said polyamide is hydrophilic.
Claim 6
Dependent Claim
11 words
The product of claim 4 wherein said polyamide is nylon 6.
Claim 7
Dependent Claim
13 words
The product of claim 5 wherein said hydrophilic nylon 6 material is woven.
Claim 8
Dependent Claim
19 words
The product of claim 1 further comprising an adhesive layer between said film layer and said textile material layer.
Claim 9
Dependent Claim
29 words
The product of claim 1 further comprising a hydrophobic textile material layer adjacent said textile material layer, said textile material layer being hydrophilic and also adjacent said film layer.
Claim 10
Dependent Claim
24 words
The product of claim 8 wherein said textile material layer comprises a hydrophilic polyamide material, and said hydrophobic textile material layer comprises a polyester.
Claim 11
Dependent Claim
19 words
The product of claim 9 further comprising an adhesive layer between said film layer and said textile material layer.
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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) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |