US4737401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballistic-resistant fine weave fabric article
Assignee: Honeywell International Inc
•
Filing: 1985-12-09
•
Granted: 1988-04-12
•
Expires: 2005-12-09
Abstract
Abstract The present invention provides an improved article of manufacture which comprises at least one network of high strength, extended chain fiber or yarn selected from the group consisting of extended chain polyethylene (ECPE) extended chain polypropylene (ECPP) fibers, extended chain polyvinyl alcohol (PVA) fiber and extended chain polyacrylonitrile (PAN) fiber. The fibers and yarn have a denier of not more than about 500 and a tensile modulus of at least about 200 g/denier. The fibers and yarn preferably have a tensile modulus of at least about 500 grams/denier and an energy-to-break of at least about 22 Joules/gram. Optionally, a low modulus elastomeric material, which has a tensile modulus of less than about 6,000 psi, measured at about 23° C., substantially coats the fiber and yarn of the network.
Inventors
- 👤 Gary A. Harpell
- 👤 Igor Palley
- 👤 Sheldon Kavesh
- 👤 Dusan C. Prevorsek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:31
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/022; B32B5/024; B32B5/026; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0471; F41H5/0485; B32B2262/00; B32B2262/02; B32B2262/0223; B32B2262/0246; B32B2262/0253; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T442/00; Y10T442/30; Y10T442/3049; Y10T442/3472; Y10T442/3528
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
60 words
An article of manufacture comprising: at least one network comprising fiber or yarn selected from the group of extended chain polyethylene and extended chain polypropylene fibers, extended chain polyvinyl alcohol fiber and extended chain polyacrylonitrile fiber wherein said fiber or yarn have a denier of not more than about 500 and a tensile modulus of at least about 200 g/denier.
Claim 2
Dependent Claim
60 words
An article of manufacture comprising: at least one network comprising fiber or yarn selected from the group of extended chain polyethylene and extended chain polypropylene fibers, extended chain polyvinyl alcohol fiber and extended chain polyacrylonitrile fiber wherein said fiber or yarn have a denier of not more than about 500 and a tensile modulus of at least about 200 g/denier.
Claim 3
Dependent Claim
27 words
An article as recited in claim 1, wherein said fiber or yarn are polypropylene fiber or yarn having a tensile modulus of at least about 200 g/den.
Claim 4
Dependent Claim
28 words
An article as recited in claim 1, wherein said polyolefin fiber or yarn are polyethylene fiber and yarn having a tensile modulus of at least about 500 g/den.
Claim 5
Dependent Claim
31 words
An article as recited in claim 1, wherein said fiber or yarn have a tensile modulus of at least about 500 g/denier and an energy-to-break of at least about 22 J/g.
Claim 6
Dependent Claim
30 words
An article as recited in claim 1, wherein said fiber or yarn have a tensile modulus of at least about 1000 g/denier and an energy-to-break of at least 50 J/g.
Claim 7
Dependent Claim
31 words
An article as recited in claim 1 wherein said fiber or yarn have a tensile modulus of at least about 1300 g/denier and an energy-to-break of at least about 55 J/g.
Claim 8
Dependent Claim
21 words
An article as recited in claim 1, wherein said fiber or yarn have a denier of not more than about 300.
Claim 9
Dependent Claim
21 words
An article as recited in claim 1, wherein said fiber or yarn have a denier of not more than about 250.
Claim 10
Dependent Claim
22 words
An article as recited in claim 1, wherein said fiber or yarn has a tensile modulus of at least about 1300 g/den.
Claim 11
Dependent Claim
22 words
An article as recited in claim 1, wherein said network comprises yarn having a tensile modulus of at least about 1800 g/den.
Claim 12
Dependent Claim
15 words
An article as recited in claim 1, wherein said network has a plain weave pattern.
Claim 13
Dependent Claim
36 words
An article as recited in claim 1 further comprising: a low modulus elastomeric material, which coats the fiber or yarn of said network and has a tensile modulus of less than about 6,000 psi (41,300 kPa).
Claim 14
Dependent Claim
20 words
An article as recited in claim 12, wherein said elastomeric material has tensile modulus of less than about 5,000 psi.
Claim 15
Dependent Claim
21 words
An article as recited in claim 12, wherein said elastomeric material has a tensile modulus of less than about 1,000 psi.
Claim 16
Dependent Claim
21 words
An article as recited in claim 12, wherein said elastomeric material has a tensile modulus of less than about 500 psi.
Claim 17
Dependent Claim
34 words
An article as recited in claim 12 comprising a plurality of network arranged as multiple layers, the fiber or yarn of each of said layers being individually coated with said low modulus elastomeric material.
Claim 18
Dependent Claim
33 words
An article as recited in claim 16, wherein said layers have an arrangement in which the fiber alignment directions in selected layers are rotated with respect to the alignment direction of another layer.
Claim 19
Dependent Claim
15 words
An article as recited in claim 12 wherein said network has a plain weave pattern.
Claim 20
Dependent Claim
23 words
An article as recited in claim 12, wherein said low modulus elastomeric material comprises less than about 10 vol % of said layer.
Claim 21
Dependent Claim
18 words
An article as recited in claim 12, wherein said elastomeric material consists essentially of a polystyrene-polyisoprene-polystyrene, tri-block copolymer.
Claim 22
Dependent Claim
18 words
An article as recited in claim 12, wherein said elastomeric material consists essentially of a polystyrene-polyethylene/butylene-polystyrene tri-block copolymer.
Claim 23
Dependent Claim
59 words
An article as recited in claim 12, wherein the network comprises yarn having a denier of less than about 250, the fiber of said yarn having a modulus of at least about 1200 g/den, the areal density of said yarn of the network is less than about 0.18 kg/m 2 , and the network has a plain weave pattern.
Claim 24
Dependent Claim
23 words
An article as recited in claim 22, wherein the yarn of the network has about 5 wt % coating of said elastomeric material.
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) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |