EP0199019A2
Expired / Lapsed
EP
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Ballistic-resistant fabric article
Assignee: Honeywell International Inc
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Filing: 1986-02-25
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Granted: —
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Expires: 2006-02-25
Abstract
Abstract The present invention provides an improved fabric which comprises at least one network of fibers selected from the group consisting of extended chain polyethylene (ECPE) Mended chain polypropylene (ECPP) fibers, extended chain polyvinyl alcohol fibers and extended chain polyacrylonitrile fibers. 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 fibers of the network. Preferably, the fibers have a tensile modulus of at least about 500 grams/denier and an energy-to-break of at least about 22 Joules/aram.
Inventors
- 👤 Gary Allan Harpell
- 👤 Igor Palley
- 👤 Sheldon Kavesh
- 👤 Dusan Ciril Prevorsek
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 13:03
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0471; F41H5/0485; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T442/00; Y10T442/20; Y10T442/2615; Y10T442/2623
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
60 words
An article of manufacture, comprising: a) at least one network comprising fibers selected from the group of extended chain polyolefin fibers, extended chain polyvinyl alcohol fibers and extended chain poly acrylonitrile fibers; and b) a low modulus elastomeric material which substantially coats said fibers and has a tensile modulus (measured at 23°C) of less than about 6,000 psi (41,300 kPa).
Claim 2
Dependent Claim
60 words
An article of manufacture, comprising: a) at least one network comprising fibers selected from the group of extended chain polyolefin fibers, extended chain polyvinyl alcohol fibers and extended chain poly acrylonitrile fibers; and b) a low modulus elastomeric material which substantially coats said fibers and has a tensile modulus (measured at 23°C) of less than about 6,000 psi (41,300 kPa).
Claim 3
Dependent Claim
28 words
An article as recited in claim 1, wherein said fibers have a tensile modulus of at least about 1000 g/denier and an energy-to-break of at least 50 J/g.
Claim 4
Dependent Claim
24 words
An article as recited in claim 1, wherein said elastomeric material comprises an elastomer having a glass transition temperature of less than about 0°C.
Claim 5
Dependent Claim
21 words
An article as recited in claim 1, wherein said elastomeric material has a tensile modulus of less than about 1,000 psi.
Claim 6
Dependent Claim
33 words
An article as recited in claim 1, wherein said fibers are ECPE fibers having a weight average molecular weight of at least about 500,000 and a tenacity of at least about 15 g/denier.
Claim 7
Dependent Claim
34 words
An article as recited in claim 5, wherein said layers have an arrangement in which the fiber alignment directions in selected layers are rotated with respect to the fiber alignment direction of another layer.
Claim 8
Dependent Claim
25 words
An article as recited in claim 1, wherein said low modulus elastomeric material comprises less than about 10 vol % of each coated fiber network.
Claim 9
Dependent Claim
22 words
An article as recited in claim 1, wherein said network of fibers is comprised of high molecular weight, extended chain polyethylene strips.
Claim 10
Dependent Claim
26 words
An article as recited in claim 1 wherein the coating comprises between about 0.1 and about 30% (by weight of fibers) of the coated fiber network.
Claim 11
Dependent Claim
19 words
An article as recited in claim 1 wherein the aspect ratio of the fiber is at least about 5:1.
Claim 12
Dependent Claim
22 words
An article as recited in claim 1 wherein the fiber comprises at least about 70% by volume of the coated fiber network.
Claim 13
Dependent Claim
53 words
A fiber comprising a polymer having a weight average molecular weight of at least about 500,000, a modulus of at least about 200 g/denier and a tenacity of at least about 10 g/denier and coated with an elastomeric material having a tensile modulus (measured at about 25°C) not greater than about 6000 psi.
Claim 14
Dependent Claim
53 words
A fiber comprising a polymer having a weight average molecular weight of at least about 500,000, a modulus of at least about 200 g/denier and a tenacity of at least about 10 g/denier and coated with an elastomeric material having a tensile modulus (measured at about 25°C) not greater than about 6000 psi.
Claim 15
Dependent Claim
20 words
The fiber of claim 12 wherein the coating is between about 0.1 and about 60% by weight of the fiber.
Claim 16
Dependent Claim
17 words
The fiber of claim 12 wherein the fiber has an aspect ratio of at least about 5:1.
Claim 17
Dependent Claim
22 words
The fiber of claim 12 wherein said polymer is selected from the group of polyolefin fiber, polyacrylonitrile fiber and polyvinyl alcohol fiber.
Claim 18
Dependent Claim
14 words
The fiber of claim 15 wherein the elastomeric material consists essentially of an elastomer.
References Cited (Backward Citations)
No citation records indexed.
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