US4830907A
Expired / Lapsed
US
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Fine denier fibers of olefin polymers
Assignee: DIAMOND TECHNOLOGY PARTNERSHIP Co
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Filing: 1984-11-16
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Granted: 1989-05-16
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Expires: 2004-11-16
Abstract
Abstract Fine denier fibers and/or multi-filaments prepared from linear low density polyethylene copolymers (LLDPE) are found to offer advantages over other forms of polyolefins.
Inventors
- 👤 Lawrence H. Sawyer
- 👤 George W. Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/28; D01F6/30; C; C08; C08L; C08L2203/00; C08L2203/12; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/269; Y10T428/29; Y10T428/2904; Y10T428/2913; Y10T428/298; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/3976; Y10T442/40; Y10T442/425; Y10T442/50; Y10T442/60; Y10T442/608; Y10T442/696; Y10T442/697; Y10T442/698
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
47 words
A fine denier multi-filament composition, being of less than about 15 denier, comprised of linear low density copolymers of ethylene with at least one alpha-olefin of C 3 to C 12 , said copolymer having a density in the range of about 0.86 to about 0.95 gms/cc.
Claim 2
Dependent Claim
47 words
A fine denier multi-filament composition, being of less than about 15 denier, comprised of linear low density copolymers of ethylene with at least one alpha-olefin of C 3 to C 12 , said copolymer having a density in the range of about 0.86 to about 0.95 gms/cc.
Claim 3
Dependent Claim
19 words
The composition of claim 1 wherein the alpha-olefin is at least one of C 4 to C 8 .
Claim 4
Dependent Claim
21 words
The composition of claim 1 wherein the copolymer has a density in the range of about 0.90 to about 0.94 gms/cc.
Claim 5
Dependent Claim
24 words
The composition of claim 1 wherein the copolymer has a melt flow value in the range of about 0.01 to about 400 gms/10 min.
Claim 6
Dependent Claim
24 words
The composition of claim 1 wherein the copolymer has a melt flow value in the range of about 6 to about 300 gms/10 min.
Claim 7
Dependent Claim
26 words
The composition of claim 1 wherein the alpha-olefin of C 3 to C 12 comprises about 1% to about 30% of the weight of the copolymer.
Claim 8
Dependent Claim
18 words
The composition of claim 1 wherein the alpha-olefin comprises at least one of C 4 -C 12 .
Claim 9
Dependent Claim
10 words
The composition of claim 1 wherein the alpha-olefin comprises 1-octene.
Claim 10
Dependent Claim
12 words
The composition of claim 1 wherein the alpha-olefin comprises 1-octene and 1-butene.
Claim 11
Dependent Claim
20 words
The composition of claim 1 wherein the alpha-olefin comprises 2 or more of the C 3 to C 12 olefins.
Claim 12
Dependent Claim
14 words
The composition of claim 1 wherein the fine denier multi-filaments comprise a non-woven web.
Claim 13
Dependent Claim
14 words
The composition of claim 1 wherein the fine denier multi-filaments comprise a filament bundle.
Claim 14
Dependent Claim
19 words
The composition of claim 1 wherein the fine denier multi-filaments are in blended form with other forms of fibers.
Claim 15
Dependent Claim
25 words
The composition of claim 1 wherein the size of the fine denier multi-filament is in the range of about 1 denier to about 14 denier.
Claim 16
Dependent Claim
14 words
The composition of claim 1 wherein the fine denier multi-filaments comprise a woven fabric.
Claim 17
Dependent Claim
14 words
The composition of claim 1 wherein the finer denier multi-filaments comprise a knitted fabric.
Claim 18
Dependent Claim
10 words
The composition of claim 1 wherein the multi-filaments are sub-denier.
Claim 19
Dependent Claim
11 words
The fine denier multi-filaments of claim 1, blended with cotton fibers.
Claim 20
Dependent Claim
11 words
The fine denier multi-filaments of claim 1, blended with polyester fibers.
Claim 21
Dependent Claim
76 words
A fine sub-denier fiber composition comprised of linear low density copolymers of ethylene with at least one alpha-olefin of C 3 to C 12 , wherein said copolymer has a density in the range of about 0.86 to about 0.95 gms/cc and a melt flow value in the range of about 0.01 to about 400 gms./10 min, said fiber composition comprising a filament bundle, a non-woven web, a woven fabric, a knitted fabric, or staple fibers.
Claim 22
Dependent Claim
76 words
A fine sub-denier fiber composition comprised of linear low density copolymers of ethylene with at least one alpha-olefin of C 3 to C 12 , wherein said copolymer has a density in the range of about 0.86 to about 0.95 gms/cc and a melt flow value in the range of about 0.01 to about 400 gms./10 min, said fiber composition comprising a filament bundle, a non-woven web, a woven fabric, a knitted fabric, or staple fibers.
Claim 23
Dependent Claim
19 words
The composition of claim 20 wherein the fine sub-denier fibers are in blended form with other forms of fibers.
Claim 24
Dependent Claim
10 words
The sub-denier fibers of claim 20, blended with cotton fibers.
Claim 25
Dependent Claim
10 words
The sub-denier fibers of claim 20, blended with polyester fibers.
Claim 26
Dependent Claim
76 words
A fine denier multi-filament composition comprised of linear low density copolymers of ethylene with at least one alpha-olefin of C 3 to C 12 , wherein said copolymer has a density in the range of about 0.86 to about 0.95 gms/cc and a melt flow value in the range of about 0.01 to about 400 gms/10 min, said multi-filament composition comprising a filament bundle, a non-woven web, a woven fabric, a knitted fabric, or staple fibers.
Claim 27
Dependent Claim
76 words
A fine denier multi-filament composition comprised of linear low density copolymers of ethylene with at least one alpha-olefin of C 3 to C 12 , wherein said copolymer has a density in the range of about 0.86 to about 0.95 gms/cc and a melt flow value in the range of about 0.01 to about 400 gms/10 min, said multi-filament composition comprising a filament bundle, a non-woven web, a woven fabric, a knitted fabric, or staple fibers.
Claim 28
Dependent Claim
17 words
The composition of claim 24 wherein the multi-filaments are in blended form with other forms of 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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |