Patent US5298319A successfully refreshed from Google Patents.
US5298319A
Expired / Lapsed
US
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Moldable automotive trunk liner
Assignee: Propex Fabrics Inc
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Filing: 1992-03-13
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Granted: 1994-03-29
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Expires: 2012-03-13
Abstract
Abstract A moldable fibrous composite comprising a first layer comprising a non-woven fabric, a second intermediate layer comprising a thermoformable material, and a third layer comprising a non-woven fabric is provided. This moldable fibrous composite can be utilized to form a one-piece trunk liner for an automobile trunk compartment. Additionally, the thermoformable material can be comprised of the same polymeric material as that of the staple fiber of the non-woven fabric of the first and third layer, thereby allowing recyclability of the moldable fibrous composite. A method is provided for the production of the moldable fibrous composite, and, additionally, a method is provided for the production of a moldable automotive trunk liner.
Inventors
- 👤 John M. Donahue
- 👤 Christopher H. Gardner
- 👤 John Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:57
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B29; B29C; B29C51/00; B29C51/14; B32B27/18; B32B27/20; B32B27/32; B32B37/00; B32B37/14; B32B37/15; B32B37/153; B29C2791/00; B29C2791/004; B29C2791/006; B29C2793/00; B29C2793/0081; B29C51/08; B29C51/082; B29K; B29K2023/00; B29K2023/10; B29K2023/12; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2223/00; B29K2223/10; B29K2223/12; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2323/00; B32B2323/10; B32B2605/00; B32B2605/08; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/666; Y10T442/667; Y10T442/671
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
116 words
A moldable fibrous composite comprising: a first layer having a first face and a second face wherein said first layer comprises a non-woven fabric consisting essentially of polypropylene staple fiber; a second layer having a first face and a second face wherein said first face of said second layer is adjacent to said second face of said first layer and wherein said second layer comprises an extruded thermoformable material comprising polypropylene; and a third layer having a first face and a second face wherein said first face of said third layer is adjacent to said second face of said second layer and wherein said third layer comprises a non-woven fabric consisting essentially of polypropylene staple fiber.
Claim 2
Dependent Claim
116 words
A moldable fibrous composite comprising: a first layer having a first face and a second face wherein said first layer comprises a non-woven fabric consisting essentially of polypropylene staple fiber; a second layer having a first face and a second face wherein said first face of said second layer is adjacent to said second face of said first layer and wherein said second layer comprises an extruded thermoformable material comprising polypropylene; and a third layer having a first face and a second face wherein said first face of said third layer is adjacent to said second face of said second layer and wherein said third layer comprises a non-woven fabric consisting essentially of polypropylene staple fiber.
Claim 3
Dependent Claim
24 words
A moldable fibrous composite in accordance with claim 1, wherein said extruded thermoformable material of said second layer comprises at least about 50% polypropylene.
Claim 4
Dependent Claim
30 words
A moldable fibrous composite in accordance with claim 2, wherein said extruded thermoformable material of said second layer comprises in terms of weight less than about 10% ultra-low density polyethylene.
Claim 5
Dependent Claim
29 words
A moldable fibrous composite in accordance with claim 2, wherein said extruded thermoformable material of said second layer comprises in terms of weight less than about 8% foaming agent.
Claim 6
Dependent Claim
25 words
A moldable fibrous composite in accordance with claim 2, wherein said extruded thermoformable material of said second layer comprises less than about 20% particulate filler.
Claim 7
Dependent Claim
29 words
A moldable fibrous composite in accordance with claim 2, wherein said extruded thermoformable material of said second layer comprises in terms of weight less than about 10% carbon black.
Claim 8
Dependent Claim
62 words
A moldable fibrous composite in accordance with claim 1 wherein said first non-woven fabric bas a weight in the range of from about 5 ounces per square yard to about 7 ounces per square yard, and wherein said second non-woven fabric has a weight in the range of from about 2 ounces per square yard to about 4 ounces per square yard.
Claim 9
Dependent Claim
38 words
A moldable fibrous composite in accordance with claim 7, wherein said first non-woven fabric and said second non-woven fabric have been needle-punched with a needle penetration in the range of from about 5 millimeters to about 10 millimeters.
Claim 10
Dependent Claim
69 words
A moldable fibrous composite in accordance with claim 7, wherein said first non-woven fabric bas been drafted in the longitudinal direction in the range of from about 7% to about 15% after said first non-woven fabric bas been needle-punched and said second non-woven fabric has been drafted in the longitudinal direction in the range of from about 20% to about 35% after said second non-woven fabric bas been needle-punched.
Claim 11
Dependent Claim
134 words
A one-piece trunk liner for an automobile trunk compartment, said trunk liner comprising an integral molded relatively stiff fibrous body comprising a first layer having a first face and a second face wherein said first layer comprises a first non-woven fabric consisting essentially of polypropylene staple fiber; a second layer having a first face and a second face wherein said first face of said second layer is adjacent to said second face of said first layer and wherein said second layer comprises an extruded thermoformable material comprising polypropylene; and a third layer having a first face and a second face wherein said first face of said third layer is adjacent to said second face of said second layer and wherein said third layer comprises a second non-woven fabric consisting essentially of polypropylene staple fiber.
Claim 12
Dependent Claim
134 words
A one-piece trunk liner for an automobile trunk compartment, said trunk liner comprising an integral molded relatively stiff fibrous body comprising a first layer having a first face and a second face wherein said first layer comprises a first non-woven fabric consisting essentially of polypropylene staple fiber; a second layer having a first face and a second face wherein said first face of said second layer is adjacent to said second face of said first layer and wherein said second layer comprises an extruded thermoformable material comprising polypropylene; and a third layer having a first face and a second face wherein said first face of said third layer is adjacent to said second face of said second layer and wherein said third layer comprises a second non-woven fabric consisting essentially of polypropylene staple fiber.
Claim 13
Dependent Claim
24 words
A one-piece trunk liner in accordance with claim 10, wherein said extruded thermoformable material of said second layer comprises at least about 50% polypropylene.
Claim 14
Dependent Claim
30 words
A one-piece trunk liner in accordance with claim 11, wherein said extruded thermoformable material of said second layer comprises in terms of weight less than about 10% ultra-low density polyethylene.
Claim 15
Dependent Claim
29 words
A one-piece trunk liner in accordance with claim 11, wherein said extruded thermoformable material of said second layer comprises in terms of weight less than about 8% foaming agent.
Claim 16
Dependent Claim
25 words
A one-piece trunk liner in accordance with claim 11, wherein said extruded thermoformable material of said second layer comprises less than about 20% particulate filler.
Claim 17
Dependent Claim
29 words
A one-piece trunk liner in accordance with claim 11, wherein said extruded thermoformable material of said second layer comprises in terms of weight less than about 10% carbon black.
Claim 18
Dependent Claim
62 words
A one-piece trunk liner in accordance with claim 10, wherein said first non-woven fabric has a weight in the range of from about 5 ounces per square yard to about 7 ounces per square yard, and wherein said second non-woven fabric has a weight in the range of from about 2 ounces per square yard to about 4 ounces per square yard.
Claim 19
Dependent Claim
38 words
A one-piece trunk liner in accordance with claim 16, wherein said first non-woven fabric and said second non-woven fabric have been needle-punched with a needle penetration in the range of from about 5 millimeters to about 10 millimeters.
Claim 20
Dependent Claim
68 words
A one-piece trunk liner in accordance with claim 16, wherein first non-woven fabric has been drafted in the longitudinal direction i-n the range of from about 7% to about 15% after said first non-woven fabric has been needle-punched and said second non-woven fabric has been drafted in the longitudinal direction in the range of from about 20% to about 35% after said second non-woven fabric has been needle-punched.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-03-28 | 1997-09-27 | 1998-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-28 | 2001-09-27 | 2002-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-28 | 2005-09-27 | 2006-03-29 | $7700.00 | Window Closed / Lapsed |