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US5364686A
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US
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Manufacture of a three-dimensionally shaped textile material and use thereof
Assignee: Invista North America LLC
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Filing: 1992-04-30
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Granted: 1994-11-15
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Expires: 2012-04-30
Abstract
Abstract There is described a process for manufacturing a dimensionally stable, three-dimensionally shaped, sheetlike textile material by bringing one or more layers of a deep-drawable textile material made of yarns, preferably a knitted material, and containing reinforcing fibers and a thermoplastic matrix material in fiber form which melts at a lower temperature than the reinforcing fibers, into the shape desired for the core material by an area-enlarging shaping process, for example by deep-drawing, at a temperature at which the fibrous thermoplastic matrix material melts, then reducing the temperature to back down to below the melting point of the thermoplastic matrix material and keeping the shaped material in the mold until the thermoplastic matrix material has sufficiently hardened, and then demolding the resulting shaped textile material.
Inventors
- 👤 Dieter Disselbeck
- 👤 Elke Gebauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:01
CPC Classifications
B; B29; B29D; B29D24/00; B29D24/002; B29B; B29B11/00; B29B11/14; B29B11/16; B29C; B29C51/00; B29C51/002; B29C51/004; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B29C70/222; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B29C70/465; B29K; B29K2067/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/20; B29K2105/206; B29K2267/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562; Y10T428/24628; Y10T428/24636; Y10T428/24661; Y10T428/24942; Y10T442/00; Y10T442/30; Y10T442/3146; Y10T442/3154; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/326; Y10T442/3285; Y10T442/3472; Y10T442/3528; Y10T442/40; Y10T442/444; Y10T442/488
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
121 words
A process for manufacturing a dimensionally stable, three-dimensionally shaped, textile material, which comprises stacking on top of one another one or more layers of a deep-drawable textile material made of yarns and containing reinforcing fibers and a thermoplastic matrix material in fiber form which melts at a lower temperature than the reinforcing fibers, bringing the stack into the shape desired for the core material by an area-enlarging shaping process, at a temperature at which the fibrous thermoplastic matrix material melts, then reducing the temperature to back down to below the melting point of the thermoplastic matrix material and keeping the shaped material in the mold until the thermoplastic matrix material has sufficiently hardened, and then demolding the resulting shaped textile material.
Claim 2
Dependent Claim
121 words
A process for manufacturing a dimensionally stable, three-dimensionally shaped, textile material, which comprises stacking on top of one another one or more layers of a deep-drawable textile material made of yarns and containing reinforcing fibers and a thermoplastic matrix material in fiber form which melts at a lower temperature than the reinforcing fibers, bringing the stack into the shape desired for the core material by an area-enlarging shaping process, at a temperature at which the fibrous thermoplastic matrix material melts, then reducing the temperature to back down to below the melting point of the thermoplastic matrix material and keeping the shaped material in the mold until the thermoplastic matrix material has sufficiently hardened, and then demolding the resulting shaped textile material.
Claim 3
Dependent Claim
15 words
The process of claim 1, wherein the deep-drawable textile material possesses a high elastic extensibility.
Claim 4
Dependent Claim
14 words
The process of claim 1, wherein the deep-drawable textile material is a knitted material.
Claim 5
Dependent Claim
23 words
The process of claim 1, wherein the deep-drawable textile material has been produced from a commingled yarn composed of matrix and reinforcing fibers.
Claim 6
Dependent Claim
36 words
The process of claim 1, wherein the deep-drawable textile material comprises bicomponent fibers composed of a high-melting and a low-melting polymer material, the polymer components being in a side-by-side arrangement or in a concentric core-sheath arrangement.
Claim 7
Dependent Claim
31 words
The process of claim 1, wherein the deep-drawable textile material comprises yarns composed of thermoplastic fibers and yarns composed of non-melting or high-melting reinforcing fibers which have been cowoven or coknitted.
Claim 8
Dependent Claim
23 words
The process of claim 1, wherein the melting point difference between the reinforcing fibers and the matrix fibers is at least 10° C.
Claim 9
Dependent Claim
19 words
The process of claim 1, wherein the reinforcing fibers and the matrix fibers comprise polyesters having different melting points.
Claim 10
Dependent Claim
14 words
The dimensionally stable, three-dimensionally shaped, textile material manufactured by the process of claim 1.
Claim 11
Dependent Claim
23 words
The process of claim 7, wherein the melting point difference between the reinforcing fibers and the matrix fibers is at least 30° C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |