IP Library › Granted Patent US 8,999,866
Granted Patent B2
US 8,999,866 · App. 14/012,413 · Granted Apr 7, 2015

Ballistic-resistant assemblies with monolayers of high-performance polyethylene multifilament yarns

Inventors: Joseph Arnold Paul Maria Simmelink (Sittard, NL); Jacobus Johannes Mencke (Maastricht, NL); Martinus Johannes Nicolaas Jacobs (Heerlen, NL); Roeloef Marissen (Born, NL)
Assignee: DSM IP Assets B.V.
D01D5/18A61L17/04A61L27/16D01D4/02D01F6/04D02G3/02F41H5/0485F41H5/0471C08L23/06C08L53/02C08L2203/12D10B2321/0211
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Quick Facts
Patent No.
US 8,999,866
App. No.
14/012,413
Granted
Apr 7, 2015
Kind
B2
Abstract

Ballistic-resistant assemblies include monolayers formed of high-performance polyethylene multi-filament yarns. The assemblies have an areal density of at least 1.5 kg/m 2 and a specific energy absorption of at least 300 J·m 2 /kg as measured against a 9*19 mm FMJ Parabellum bullet according to a test procedure based on Stanag 2920.

Claims (3)

1. A ballistic-resistant assembly comprising a plurality of mono-layers consisting essentially of high-performance polyethylene multifilament yarn, the assembly having an areal density of at least 1.5 kg/m 2 and a specific energy absorption of at least 300 J·m 2 /kg as measured against a 9*19 mm FMJ Parabellum bullet according to a test procedure based on Stanag 2920.

2. The ballistic-resistant assembly according to claim 1 , wherein the mono-layers contain uni-directionally oriented filaments, with the fibre direction in each mono-layer being rotated with respect to the fibre direction in an adjacent mono-layer.

3. The ballistic-resistant assembly according to claim 1 , wherein the specific energy absorption of the panel is at least 325 J·m 2 /kg.

Assignments (2)
CHANGE OF NAME Recorded Mar 17, 2023
From: DSM PROTECTIVE MATERIALS B.V.
To: AVIENT PROTECTIVE MATERIALS B.V.
Reel/Frame 063115/0134 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2022
From: DSM IP ASSETS B.V.
To: DSM PROTECTIVE MATERIALS B.V.
Reel/Frame 061897/0987 →
Priority Claims (1)
WO PCT/NL04/00029 · Jan 1, 2004 · international
Continuity (3)
Division 12576239 · Oct 8, 2009
Division 10584285
Related Publication 20140060307A1 · Mar 6, 2014