Patent US3576828A successfully refreshed from Google Patents.
US4882222A
Expired / Lapsed
US
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Carpet fiber blends
Assignee: Solutia Inc
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Filing: 1988-03-31
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Granted: 1989-11-21
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Expires: 2008-03-31
Abstract
Abstract A blend of conventional carpet fibers (e.g. nylon fibers) and high shrinkage fibers (e.g. acrylic fibers) is described. Saxony carpet made from the blend has better appearance retention characteristics than corresponding saxony carpet made from the conventional carpet fibers.
Inventors
- 👤 Arthur Talley, Jr.
- 👤 Arnold E. Wilkie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:18
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/445; D04; D04G; D04G3/00; D10; D10B; D10B2503/00; D10B2503/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23993; Y10T428/24; Y10T428/24942; Y10T428/29; Y10T428/2904; Y10T428/2905; Y10T428/2909; Y10T428/2913; Y10T428/2922
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
128 words
A blend of fibers comprising carpet fibers and high shrinkage fibers, the carpet fibers being crimped fibers having deniers of at least 10 (dpf) and shrinkages of less than 12%, the high shrinkage fibers being fibers having shrinkages of at least 12%, the quantities and shrinkages of said carpet fibers and said high shrinkage fibers being such that when a saxony test carpet having a pile made from heatset yarn which prior to being heatset consists of said blend of fibers is subject to 40,000 traffics, the appearance thereof is better with respect to tuft endpoint definition and lack of matting, as determined by Test A, than corresponding test carpet having a pile made from heatset yarn which prior to being heatset consists entirely of said carpet fibers.
Claim 2
Dependent Claim
128 words
A blend of fibers comprising carpet fibers and high shrinkage fibers, the carpet fibers being crimped fibers having deniers of at least 10 (dpf) and shrinkages of less than 12%, the high shrinkage fibers being fibers having shrinkages of at least 12%, the quantities and shrinkages of said carpet fibers and said high shrinkage fibers being such that when a saxony test carpet having a pile made from heatset yarn which prior to being heatset consists of said blend of fibers is subject to 40,000 traffics, the appearance thereof is better with respect to tuft endpoint definition and lack of matting, as determined by Test A, than corresponding test carpet having a pile made from heatset yarn which prior to being heatset consists entirely of said carpet fibers.
Claim 3
Dependent Claim
14 words
The blend of claim 1 wherein the fibers of said blend are staple fibers.
Claim 4
Dependent Claim
18 words
The blend of claim 2 wherein said carpet fibers are nylon fibers or polyester fibers or blends thereof.
Claim 5
Dependent Claim
16 words
The blend of claim 3 wherein said high shrinkage fibers are acrylic fibers or polyester fibers.
Claim 6
Dependent Claim
20 words
The blend of claim 2 wherein said carpet fibers are nylon fibers and said high shrinkage fibers are acrylic fibers.
Claim 7
Dependent Claim
24 words
The blend of claim 1 wherein said carpet fibers and said high shrinkage fibers are continuous filaments in the form of a singles yarn.
Claim 8
Dependent Claim
14 words
The blend of claim 6 wherein the carpet filaments consist essentially of nylon filaments.
Claim 9
Dependent Claim
19 words
The blend of claim 7 wherein the high shrinkage filaments consist essentially of polyester filaments or nylon copolymeric filaments.
Claim 10
Dependent Claim
25 words
The blend of claim 1 wherein the difference in shrinkages between said carpet fibers and said high shrinkage fibers is at least 10 shrinkage units.
Claim 11
Dependent Claim
28 words
The blend of claim 1 further characterized in that the difference in appearance between said test carpets is at least 1 ASTM Grade, as determined by Test B.
Claim 12
Dependent Claim
28 words
The blend of claim 1 further characterized in that the difference in appearance between said test carpets is at least 2 ASTM Grades, as determined by Test B.
Claim 13
Dependent Claim
131 words
A blend of staple fibers having an average length in the range of 6 to 9 inches (15 to 23 centimeters) and consisting essentially of crimped carpet staple fibers and high shrinkage staple fibers in a weight ratio ranging from 60:40 to 95:5, carpet staple fibers to high shrinkage staple fibers, said carpet staple fibers being selected from the group consisting of nylon staple fibers, polyester staple fibers and mixtures thereof and having shrinkages less than 8%, deniers of at least 12 and a crimp frequency in the range of 5 to 17 crimps per inch (2 to 6 crimps per cm), said high shrinkage staple fibers being staple fibers having shrinkages of at least 12% and at least 10 shrinkage units higher than the shrinkages of said carpet staple fibers.
Claim 14
Dependent Claim
131 words
A blend of staple fibers having an average length in the range of 6 to 9 inches (15 to 23 centimeters) and consisting essentially of crimped carpet staple fibers and high shrinkage staple fibers in a weight ratio ranging from 60:40 to 95:5, carpet staple fibers to high shrinkage staple fibers, said carpet staple fibers being selected from the group consisting of nylon staple fibers, polyester staple fibers and mixtures thereof and having shrinkages less than 8%, deniers of at least 12 and a crimp frequency in the range of 5 to 17 crimps per inch (2 to 6 crimps per cm), said high shrinkage staple fibers being staple fibers having shrinkages of at least 12% and at least 10 shrinkage units higher than the shrinkages of said carpet staple fibers.
Claim 15
Dependent Claim
90 words
The blend of claim 12 further characterized in that the quantities and shrinkages of said carpet fibers and said high shrinkage fibers are such that when a saxony test carpet having a pile made from heatset yarn which prior to being heatset consists of said blend of fibers, the appearance thereof is better with respect to tuft endpoint definition of lack of matting, as determined by Test A, than corresponding test carpet having a pile made from heatset yarn which prior to being heatset consists entirely of said carpet fiber.
Claim 16
Dependent Claim
28 words
The blend of claim 13 further characterized in that the difference in appearance between said test carpets is at least 1 ASTM Grade, as determined by Test B.
Claim 17
Dependent Claim
28 words
The blend of claim 13 further characterized in that the difference in appearance between said test carpets is at least 2 ASTM Grades, as determined by Test B.
Claim 18
Dependent Claim
17 words
The staple blend of claim 12 wherein said high shrinkage fibers consist essentially of acrylic staple fibers.
Claim 19
Dependent Claim
13 words
The blend of claim 16 wherein said carpet fibers are nylon 66 fibers.
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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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |