US4258097A
Expired / Lapsed
US
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Non-woven low modulus fiber fabrics
Assignee: Brunswick Corp
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Filing: 1979-04-26
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Granted: 1981-03-24
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Expires: 1999-04-26
Abstract
Abstract Non-woven fabrics suitable for use as carpeting and the like are produced by needlepunching staple length monofilament fibers having an elastic modulus of from 5,000 to 60,000 psi. The fibers are also characterized by an area moment of inertia of from 400×10 14 to 7,000×10 14 in 4 and a stiffness parameter of from 1×10 -5 to 1×10 -8 lb-in 2 .
Inventors
- 👤 Joseph C. Benedyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:48
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/46; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2913; Y10T428/2915; Y10T428/2927; Y10T442/00; Y10T442/60; Y10T442/682; Y10T442/684; Y10T442/688
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
53 words
A non-woven, needle punched fabric comprising staple length, polymeric monofilament fibers, said fibers having an elastic modulus in the range of 5,000 to 60,000 psi, an area moment of inertia of from 400×10 -14 to 7,000×10 -14 in 4 and a stiffness parameter of from 1×10 -5 to 1×10 -8 lb-in 2 .
Claim 2
Dependent Claim
53 words
A non-woven, needle punched fabric comprising staple length, polymeric monofilament fibers, said fibers having an elastic modulus in the range of 5,000 to 60,000 psi, an area moment of inertia of from 400×10 -14 to 7,000×10 -14 in 4 and a stiffness parameter of from 1×10 -5 to 1×10 -8 lb-in 2 .
Claim 3
Dependent Claim
46 words
The fabric of claim 1 wherein the polymer from which the fiber is produced is selected from the group consisting of ethylene-vinyl acetate copolymers, plasticized polyvinyl chloride, low density polyethylene, ethylene-ethyl acrylate copolymer, ethylene-butylene copolymer, polybutylene, ethylene-propylene copolymers, chlorinated polypropylene, chlorinated polybutylene and compatible mixtures thereof.
Claim 4
Dependent Claim
15 words
The fabric of claim 2 wherein the molecules of the polymeric fibers are partially cross-linked.
Claim 5
Dependent Claim
15 words
The fabric of claim 3 wherein cross-linking is accomplished by subjecting the fibers to radiation.
Claim 6
Dependent Claim
17 words
The fabric of claim 4 wherein the polymeric fibers contain additives which enhance the radiation cross-linking thereof.
Claim 7
Dependent Claim
24 words
The fabric of claim 5 wherein said additives are selected from the group consisting of finely divided silicon dioxide, titanium dioxide and mixtures thereof.
Claim 8
Dependent Claim
30 words
The fabric of claim 2 wherein the polymeric fibers have dispersed therein one or more additives of the group consisting of colorants, fillers, flame retardants, antistatic agents and antisoiling agents.
Claim 9
Dependent Claim
25 words
The fabric of claim 7 where the weight percentage of additives in the fiber based on total fiber weight ranges from 0.5 to 20 percent.
Claim 10
Dependent Claim
13 words
The fabric of claim 8 wherein one of said additives is hydrated magnesia.
Claim 11
Dependent Claim
20 words
The fabric of claim 2 wherein the fabric weight is in the range of 15 to 50 oz/yd 2 .
Claim 12
Dependent Claim
17 words
The fabric of claim 10 wherein the fiber denier is in the range of 80 to 150.
Claim 13
Dependent Claim
9 words
The fabric of claim 10 including a scrim backing.
Claim 14
Dependent Claim
12 words
The fabric of claim 1 wherein the polymric fibers comprise ethylene-vinyl acetate.
Claim 15
Dependent Claim
18 words
The fabric of claim 13 wherein the vinyl acetate content ranges from 1 to 20 percent by weight.
Claim 16
Dependent Claim
13 words
The fabric of claim 14 wherein the ethylene-vinyl acetate molecules are partially cross-linked.
Claim 17
Dependent Claim
15 words
The fabric of claim 15 wherein cross-linking is accomplished by subjecting the fibers to radiation.
Claim 18
Dependent Claim
18 words
The fabric of claim 16 wherein the ethylene-vinyl acetate fibers contain additives which enhance the radiation cross-linking thereof.
Claim 19
Dependent Claim
24 words
The fabric of claim 17 wherein said additives are selected from the group consisting of finely divided silicon dioxide, titanium dioxide and mixtures thereof.
Claim 20
Dependent Claim
32 words
The fabric of claim 14 wherein the ethylene-vinyl acetate fibers have dispersed therein one or more additives selected from the group consisting of colorants, fillers, flame retardants, antistatic agents and antisoiling agents.
Claim 21
Dependent Claim
25 words
The fabric of claim 19 wherein the weight percentage of additives in the fiber based on total fiber weight ranges from 0.5 to 20 percent.
Claim 22
Dependent Claim
13 words
The fabric of claim 20 wherein one of said additives is hydrated magnesia.
Claim 23
Dependent Claim
20 words
The fabric of claim 14 wherein the fabric weight is in the range of 15 to 50 oz/yd 2 .
Claim 24
Dependent Claim
17 words
The fabric of claim 22 wherein the fiber denier is in the range of 80 to 150.
Claim 25
Dependent Claim
9 words
The fabric of claim 22 including a scrim backing.
Claim 26
Independent Claim
81 words
A method for making a non-woven fabric which comprises: depositing a uniform layer of thermoplastic staple fibers upon a work surface, said fibers having an elastic modulus in the range of 5,000 to 60,000 psi, an area moment of inertia of from 400×10 -14 to 7,000×10 -14 in 4 and a stiffness parameter of from 1×10 -5 to 1×10 -8 lb-in 2 , and forming a fabric by needling the fibers throughout said layer to intimately intermix and intertwine the fibers.
Claim 27
Independent Claim
81 words
A method for making a non-woven fabric which comprises: depositing a uniform layer of thermoplastic staple fibers upon a work surface, said fibers having an elastic modulus in the range of 5,000 to 60,000 psi, an area moment of inertia of from 400×10 -14 to 7,000×10 -14 in 4 and a stiffness parameter of from 1×10 -5 to 1×10 -8 lb-in 2 , and forming a fabric by needling the fibers throughout said layer to intimately intermix and intertwine the fibers.
Claim 28
Dependent Claim
24 words
The method of claim 25 wherein said fibers comprise ethylene-vinyl acetate copolymer having a vinyl acetate content ranging from 1 to 20% by weight.
Claim 29
Dependent Claim
12 words
The method of claim 26 wherein said ethylene-vinyl acetate is partially cross-linked.
Claim 30
Dependent Claim
16 words
The method of claim 27 wherein said cross-linking is accomplished by subjecting the fibers to radiation.
Claim 31
Dependent Claim
33 words
The method of claim 28 wherein the fibers contain additives which enhance the radiation cross-linking thereof, said additives selected from the group consisting of finely divided silicon dioxide, titanium dioxide and mixtures thereof.
Claim 32
Dependent Claim
30 words
The method of claim 26 wherein the fibers have dispersed therein one of more additives selected from the group consisting of colorants, fillers, flame retardants, antistatic agents and antisoiling agents.
Claim 33
Dependent Claim
13 words
The method of claim 30 wherein one of said additives is hydrated magnesia.
Claim 34
Dependent Claim
20 words
The method of claim 26 wherein the fabric weight is in the range of 15 to 50 oz/yd 2 .
Claim 35
Dependent Claim
17 words
The method of claim 32 wherein the fiber denier is in the range of 80 to 150.
Claim 36
Dependent Claim
12 words
The method of claim 26 wherein said work surface comprises a scrim.
References Cited (Backward Citations)
US2910763A
Cited
US3081485A
Cited
US3086275A
Cited
US3206351A
Cited
US3591674A
Cited
US3994759A
Cited
US3801428A
Cited
US3803453A
Cited
US3935046A
Cited
US3976631A
Cited
US4078128A
Cited
US4181762A
Cited
US4082658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |