IP Library › Granted Patent US 7,348,053
Granted Patent B1
US 7,348,053 · App. 11/217,277 · Granted Mar 25, 2008

Ultra high molecular weight polyethylene ballistic structures

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Quick Facts
Patent No.
US 7,348,053
App. No.
11/217,277
Granted
Mar 25, 2008
Kind
B1
Abstract

Ballistic panels formed by the lamination of highly oriented ultra high molecular weight poly(ethylene) slit films and sheets useful in the fabrication of ballistic containers are described.

Claims (6)

1. A ballistic panel comprising a laminated structure of a plurality of highly oriented ultra high molecular weight polyethylene slit film fibers having a generally rectangular cross-section and smooth cut edges and a heat of fusion above about 243 joules/gram.

2. The ballistic panel of claim 1 wherein said ultra high molecular weight polyethylene slit film fibers have a thickness below about 3 mils.

3. The ballistic panel of claim 1 having a thickness above about ¼ inch.

4. The ballistic panel of claim 3 having a thickness above about ½ inch.

5. The ballistic panel of claim 3 comprising a plurality of individual layers of a highly oriented ultra high molecular weight polyethylene slit film fiber laminated directly to each other without an adhesive mechanism.

6. The ballistic panel of claim 3 comprising individual layers of a highly oriented ultra high molecular weight polyethylene slit film fiber laminated directly to each other with an adhesive mechanism.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2012
From: BAE SYSTEMS TENSYLON HIGH PERFORMANCE MATERIALS INC.
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 029084/0043 →
CHANGE OF NAME Recorded Aug 29, 2011
From: INTEGRATED TEXTILE SYSTEMS, INC.
To: TENSYLON HIGH PERFORMANCE MATERIALS, INC.
Reel/Frame 026821/0298 →
CHANGE OF NAME Recorded Aug 29, 2011
From: TENSYLON HIGH PERFORMANCE MATERIALS, INC.
To: BAE SYSTEMS TENSYLON HIGH PERFORMANCE MATERIALS, INC.
Reel/Frame 026821/0903 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2011
From: WEEDON, GENE C.; WEBER, C. PAUL; HARDING, KENNETH C.
To: INTEGRATED TEXTILE SYSTEMS, INC.
Reel/Frame 026816/0100 →
CONFIRMATION OF ASSIGNMENT Recorded Jun 28, 2006
From: WEEDON, GENE C.; WEBER, C. PAUL; HARDING, KENNETH C.
To: INTEGRATED TEXTILE SYSTEMS, INC.
Reel/Frame 017873/0847 →