US4107369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric having an elastomer coat on face and method of producing same
Assignee: Avon Technologies PLC
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Filing: 1976-09-22
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Granted: 1978-08-15
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Expires: 1996-09-22
Abstract
Abstract A fabric having an elastomer coat on each face of a woven layer and having resistance to water attack along the woven layer is formed by heating and stretching the yarn, the thread or the fabric of the woven layer, for example to achieve 20 to 30% elongation, so as to reduce or eliminate interfilamentary spaces and subsequently coating the woven layer. The fabric is of particular value for gas-cushion vehicles intended for travel over water. FIELD OF THE INVENTION
Inventors
- 👤 Eric Richard Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:02
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/36; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B32B25/00; B32B25/10; B32B27/02; B32B27/34; B32B5/00; B32B5/02; B32B7/00; B32B7/04; B32B7/12; D; D06; D06M; D06M15/00; D06M15/693; B32B2305/00; B32B2305/10; B32B2305/18; B32B2319/00; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/3089; Y10T442/3854
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
131 words
The method of treating thermoplastic yarn having a plurality of thermoplastic filaments to at least reduce the capillary attraction of the interfilament spaces comprising distorting the filaments by: heating the yarn to a temperature sufficient to soften the thermoplastic material of the filaments, tensioning the yarn while the thermoplastic material is softened by said heating, maintaining such heating and tensioning for a time sufficient to insure distortion of the filaments and at least reduction of the interfilamentary space; cooling the yarn to set the filaments in their distorted state to permanently reduce the interfilament spaces whereby the capillary attraction of said yarn is reduced or eliminated; making up said yarn into thread; weaving said thread into a fabric; and finally securing an elastomer to at least one face of the fabric.
Claim 2
Independent Claim
131 words
The method of treating thermoplastic yarn having a plurality of thermoplastic filaments to at least reduce the capillary attraction of the interfilament spaces comprising distorting the filaments by: heating the yarn to a temperature sufficient to soften the thermoplastic material of the filaments, tensioning the yarn while the thermoplastic material is softened by said heating, maintaining such heating and tensioning for a time sufficient to insure distortion of the filaments and at least reduction of the interfilamentary space; cooling the yarn to set the filaments in their distorted state to permanently reduce the interfilament spaces whereby the capillary attraction of said yarn is reduced or eliminated; making up said yarn into thread; weaving said thread into a fabric; and finally securing an elastomer to at least one face of the fabric.
Claim 3
Dependent Claim
14 words
A method according to claim 1 wherein the yarn is stretched at least 5%.
Claim 4
Dependent Claim
15 words
A method according to claim 1 wherein the yarn is stretched by at least 20%.
Claim 5
Dependent Claim
22 words
A method according to claim 2 which is carried out on a thread having a twist greater than 250 turns/meter, before weaving.
Claim 6
Dependent Claim
20 words
The method of claim 1 wherein the making up of said yarn into thread is performed after the cooling step.
Claim 7
Dependent Claim
32 words
The method of claim 1 wherein the making up of said yarn into thread is performed before the heating and tensioning steps whereby a thread of yarn is tensioned while heat softened.
Claim 8
Dependent Claim
40 words
The method of claim 1 wherein the making up of said yarn into thread and weaving said thread into a fabric is performed before the heating and tensioning steps whereby an entire fabric of yarn is tensioned while heat softened.
Claim 9
Dependent Claim
15 words
The method of claim 1 including securing said elastomer to said face with an adhesive.
Claim 10
Dependent Claim
15 words
The method of claim 1 including securing an elastomer to both faces of said fabric.
Claim 11
Dependent Claim
16 words
The method of claim 9 including securing said elastomer to said both faces with an adhesive.
Claim 12
Dependent Claim
25 words
The method of claim 6 wherein the weaving of said thread into a fabric is performed after the cooling step and before the securing step.
Claim 13
Dependent Claim
35 words
The method of claim 1 in which the thermoplastic material of the filaments is non-heat-shrinkable and in which the tension is produced by application of a force to stretch the yarn to a greater length.
Claim 14
Dependent Claim
38 words
The method of claim 1 in which the thermoplastic material of the filaments is heat-shrinkable and in which the tension is produced by applying a force to the yarn at least sufficient to prevent shrinkage of the yarn.
Claim 15
Dependent Claim
18 words
The method of claim 9 in which said cooling is carried out while the yarn is under tension.
Claim 16
Dependent Claim
18 words
The method of claim 10 in which said cooling is carried out while the yarn is under tension.
Claim 17
Dependent Claim
19 words
The method of claim 13 in which the force applied to the yarn is sufficient to increase its length.
Claim 18
Dependent Claim
55 words
A coated fabric comprising a woven fabric layer, an elastomeric layer on at least one face of said fabric layer, said fabric including a plurality of juxtaposed filaments, said filaments being thermoplastic, said filaments also being misshapen and the interfilament space being at least reduced evidencing that said filaments have undergone tensioning while heat softened.
Claim 19
Dependent Claim
55 words
A coated fabric comprising a woven fabric layer, an elastomeric layer on at least one face of said fabric layer, said fabric including a plurality of juxtaposed filaments, said filaments being thermoplastic, said filaments also being misshapen and the interfilament space being at least reduced evidencing that said filaments have undergone tensioning while heat softened.
Claim 20
Dependent Claim
21 words
The article of claim 17 in which said elastomeric layer is adhered by an adhesive to said at least one face.
Claim 21
Dependent Claim
18 words
The article of claim 17 in which said fabric layer has an elastomeric layer on both faces thereof.
Claim 22
Dependent Claim
18 words
The article of claim 19 in which said elastomeric layers are adhered by an adhesive to said faces.
References Cited (Backward Citations)
US2485725A
Cited
US2533976A
Cited
US3028279A
Cited
US3086274A
Cited
US3395744A
Cited
US3440133A
Cited
US3514365A
Cited
US3814658A
Cited
US3576703A
Cited
US4060999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |