Honeywell International Inc.

Jhrg, LLC

Ashok Bhatnagar

Lori L Wagner

Brian Duane Arvidson

David A Hurst

Henry Gerard Ardiff

Thomas Y Tam

Mark Benjamin Boone

Bradley L Grunden

Steven Thomas Correale

Gary Kratzer

Ralf Klein

David Andrew Steenkamer

Henry G Ardiff

Huy Xuan Nguyen

Charles Arnett

Brian H Waring

Gregory A Davis

Duane R Prior

Harold Lindley Murray, Jr

Danelle Powers

Tyler Bartelt

Chok Bin C Tan

Elizabeth Stroud Parrish

Terry S Chern

Robert C Ramsdell

Barbara M Costain

Bradley Grunden

Thomas Yiu-Tai Tam

David S Cordova

John E Holland

Chok Bin Tan

Carolyn S Westmark

James Robert Thagard

Tamara L Ehle

Madhusudhan Rammoorthy

Timothy Swinger

Shari E Litow

James Thagard

Danelle F Powers

Elizabeth S Parrish

Bin C Tan Chok

Lin Murray

Horold Lindley Murray

Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.

High buoyancy composite materials

A method for improving the translation efficiency of fiber strength into composite strength is provided. A single unidirectional tape, single unidirectional fiber web or a stack of unidirectional web/unidirectional tape plies formed from partially oriented fibers/tapes is primed under mild conditions followed by subjecting the primed plies to an axial extension stress in the axial fiber direction of each fiber ply by passage through a compression apparatus. The axial extension stress extends the fibers, strengthening them, while also compacting the plies together and thereby forming a composite having improved strength. Production yield is improved by avoiding maximal fiber stretching and thereby avoiding typical manufacturing loss, and low weight composite armor having increased strength is achieved.

Ballistic translation efficiency of high performance fibers

This technology relates materials that are stab, spike and ballistic resistant and to stab, spike and ballistic resistant composite articles incorporating uniaxially oriented, non-woven fabrics. A fabric layer having a non-uniform areal density is formed having thick areas and thin areas, the thick areas having a greater filament/tape concentration compared to the thin areas. In said thick areas, agglomerated tapes/filaments will protrude from the fabric layer surface. Additional layers are then adjoined with the non-uniform layer to form a panel that has stab, spike and ballistic resistance, with protrusions at least partially spacing the additional layers from full, direct contact with the surface of the non-uniform fabric layer to thereby enhance flexibility and stab, spike and ballistic resistance of the whole.

Variable areal density cross-plied fiber-reinforced composite ballistic material

Multi-ply, hybrid composite materials useful in the formation of thin walled, hollow, tubular articles having improved resistance to hoop stress. Two different, single-ply pre-pregs are impregnated with binders and laminated together with the fibers of the layers oriented at a bias relative to each other. The hybrid composite is rolled into a tubular article having excellent strength uniformity along the full length of the tubular article.

Hybrid fiber multi-axial prepreg

Low porosity fibrous materials, articles formed therefrom and processes for their formation. Multiple plies of high tenacity, multifilament elongate bodies are optionally stitched together and pressed as a set without being laminated, adhered or thermally fused to each other. Pressing spreads the component filaments of the elongate bodies, forcing the filaments to occupy spaces between adjacent fibers and thereby reducing porosity of the complete multi-ply material.

Low porosity high strength UHMW PE fabrics

Woven fabrics are formed from high tenacity fibers or tapes that are loosely interwoven with adhesive coated filaments, to composite articles formed therefrom, and to a continuous process for forming the composite articles.

Ballistic resistant thermoplastic sheet, process of making and its applications

Viscoelastic, lightweight composite armor that is resistant to backface deformation, and to a method for evaluating the effectiveness of composite armor in resisting backface deformation. The index of retraction of a composite is determined by evaluating the degree of composite retraction at the site of impact of projectile after movement of the projectile is stopped. The degree of retraction indicates the ability of the composite to resist backface deformation.

High kinetic energy absorption with low back face deformation ballistic composites

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.

Stab and ballistic resistant articles and the process of making

Lightweight, breathable, non-woven fibrous materials and composite articles incorporating the same are provided. Composite articles are formed by merging an open, non-woven grid formed from high tenacity elongate bodies with at least one substrate, forming an article having excellent tensile strength, excellent breathability and a unique aesthetic appearance.

Breathable light weight unidirectional laminates

Low porosity high strength UHMWPE fabrics

Ballistic resistant materials and articles formed from fiber/tape plies that incorporate multiple different fiber or tape types within a single ply. The different fiber or tape types are physically dissimilar but may be chemically different or substantially chemically similar.

Hybrid fiber unidirectional tape and composite laminates

Hybrid, multi-panel ballistic resistant articles useful for the fabrication of body armor. The articles include at least three different fabric sections that are arranged into a gradient wherein the outermost, strike-face section of the article is formed from fibers having the highest tenacity of the article.

Materials gradient within armor for balancing the ballistic performance

Growing community of inventors

Richmond, VA, United States of America

Ashok Bhatnagar