Stab and ballistic resistant articles

Patent metadata

Field	Value
Publication number	US-9243354-B2
Application number	US-201313835008-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Mar 15, 2013
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

Abstract

Dimensionally stable open woven fabrics formed from a plurality of high tenacity warp elongate bodies interwoven and bonded with a plurality of transversely disposed, high tenacity weft elongate bodies, composite articles formed therefrom, and to a continuous process for forming the composite articles.

First claim

What is claimed is:

1. A woven fabric comprising a plurality of warp elongate bodies interwoven and bonded with a plurality of transversely disposed weft elongate bodies, said warp elongate bodies and weft elongate bodies each comprising thermoplastic high tenacity elongate bodies having a tenacity of at least about 14 g/denier and a tensile modulus of at least about 300 g/denier, wherein immediately adjacent warp elongate bodies are spaced apart from each other by a distance equivalent to at least about 10% of the width of the warp elongate bodies and immediately adjacent weft elongate bodies are spaced apart from each other by a distance equivalent to at least about 10% of the width of the weft elongate bodies, wherein gaps are between the immediately adjacent warp elongate bodies and between the immediately adjacent weft elongate bodies.

2. The woven fabric of claim 1 wherein gaps are between the immediately adjacent warp elongate bodies and between the immediately adjacent weft elongate bodies, wherein the immediately adjacent high tenacity warp elongate bodies are spaced apart from each other at their nearest longitudinal edges by more than 1 mm, and the immediately adjacent high tenacity weft elongate bodies are spaced apart from each other at their nearest longitudinal edges by more than 1 mm.

3. The woven fabric of claim 1 wherein gaps are between the immediately adjacent warp elongate bodies and between the immediately adjacent weft elongate bodies, and wherein said high tenacity warp elongate bodies comprise untwisted fibrous elongate bodies and said high tenacity weft elongate bodies comprise untwisted fibrous elongate bodies are thermally bonded to each other without an adhesive coating.

4. The woven fabric of claim 1 wherein gaps are between the immediately adjacent warp elongate bodies and between the immediately adjacent weft elongate bodies, wherein said high tenacity warp elongate bodies and said high tenacity weft elongate bodies intersect and are thermally bonded to each other at their points of intersection without an adhesive coating, and wherein each comprises multifilament, ultra-high molecular weight polyethylene polymeric tapes having a cross-sectional aspect ratio of at least about 3:1 and having a width of at least about 2.5 mm, or from at least about 2.5 mm to about 50 mm.

5. The woven fabric of claim 4 wherein gaps are between the immediately adjacent warp elongate bodies and between the immediately adjacent weft elongate bodies, and wherein said high tenacity warp elongate bodies and said high tenacity weft elongate bodies each have a denier of at least about 1300 and are resin-free.

6. The woven fabric of claim 1 wherein gaps are between the immediately adjacent warp elongate bodies and between the immediately adjacent weft elongate bodies, and wherein binding warp elongate bodies are interwoven in the warp direction, said binding warp elongate bodies being positioned in the gaps between immediately adjacent high tenacity warp elongate bodies and/or wherein binding weft elongate bodies are interwoven in the weft direction, said binding weft elongate bodies being positioned in the gaps between immediately adjacent high tenacity weft elongate bodies, wherein said binding warp elongate bodies and said binding weft elongate bodies each at least partially comprise a thermoplastic polymer having a melting temperature that is below a melting temperature of the high tenacity elongate bodies.

Assignees

• Honeywell Int Inc

Inventors

• Tam Thomas
• Boone Mark Benjamin
• Bhatnagar Ashok

Classifications

• B32B27/12 Primary

  next to a fibrous or filamentary layer · CPC title

• D03D1/0052 Primary

  Antiballistic fabrics · CPC title

• B32B2571/02

  defensive, e.g. armour plates or anti-ballistic clothing · CPC title

• Y10T442/30

  Woven fabric [i.e., woven strand or strip material] · CPC title

• D10B2401/063

  high strength · CPC title