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US 2022/0187046 A1Published application
Ballistic materials incorporating hydroentangled nonwovens
AssigneeDupont Safety & Construction, Inc.
InventorsAllen L. Price, David Brahms, Scott Janco, Courtney Musciano, Robert Gravel, Eric A. Barter, Matt Langley, James Stahl, Vincent Gallacher
Life of this patent
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Abstract
A ballistic material is made from spunlace nonwoven fibers mechanically entangled into a woven ballistic fabric. The spunlace nonwoven may comprise low denier fibers providing for a highly dense ballistic product.
Claims17
A ballistic material, comprising:
- a first woven ballistic fabric having a fiber denier in a range of 50 d to 5000 d;
- and
- a spunlace nonwoven fiber component having a fiber denier in a range of about 0.5 d to about 2.5 d and a density of about 10 g/m2 to about 200 g/m2;
- wherein
- the spunlace nonwoven fiber component is needlepunched with the first woven ballistic fabric to form the ballistic material;
- wherein the first woven ballistic fabric consists essentially of ballistic grade polyamide fibers, para-aramid fibers, ultra-high molecular weight polyethylene fibers, multi-component fibers, or co-polymer fibers;
- and
- wherein the spunlace nonwoven fiber component consists essentially of ballistic grade polyamide fibers, para-aramid fibers, ultra-high molecular weight polyethylene fibers, polypropylene fibers, polyester fibers, multi-component fibers, or co-polymer fibers.
5 more elements
A ballistic material, comprising:
- a first woven ballistic fabric having a fiber denier in a range of 50 d to 5000 d;
- and
- a hydroentangled nonwoven fiber component having a fiber denier in a range of about 0.5 d to about 2.5 d and a density of about 10 g/m2 to about 200 g/m2;
- wherein the first woven ballistic fabric consists essentially of ballistic grade polyamide fibers, para-aramid fibers, ultra-high molecular weight polyethylene fibers, multi-component fibers, or co-polymer fibers;
- wherein the hydroentangled nonwoven fiber component is needlepunched with the first woven ballistic fabric to form the ballistic material,
- wherein the hydroentangled nonwoven fiber component constitutes about 0.1% to about 10% by weight of the ballistic material, and
- wherein the ballistic material has an areal weight in a range of 0.1 to about 2.0 pounds per square foot and a V50 in a range of about 750 to about 3000 feet per second.
4 more elements
Dependencies are inferred from the claim text.