Honeywell International Inc.

Charles Arnett

Qiang Zhou

John Armstrong Young

Thomas Yiu-Tai Tam

Chok Bin Tan

Thomas Y-t Tam

Conor J Twomey

Ashok Bhatnagar

Lori L Wagner

David A Hurst

Sheldon Kavesh

Henry Gerard Ardiff

John Hermes

Gary Kratzer

John D Brodie

Brian Duane Arvidson

Thomas Y Tam

Steven Thomas Correale

Thomas Y T Tam

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

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

Highly uniform woven fibrous structures formed from fibrous tapes, wherein the tapes constitute the warp and weft tapes of a woven fabric. The individual fibrous tapes may be woven or non-woven, and may be formed as narrow tapes or may be cut from a wider fabric web.

High performance laminated tapes and related products for ballistic applications

An improved process for solution spinning of ultra-high molecular weight polyethylene (UHMW PE) filaments, wherein the 10 wt % solution of the UHMW PE in mineral oil at 250&#xb0; C. has a Cogswell extensional viscosity and a shear viscosity within select ranges.

Process and product of high strength UHMW PE fibers

A robust process for the continuous preparation of solutions of high molecular weight UHMW PO that is capable of producing strong materials at high production capacity, is conservative of capital and energy requirements, and the articles made therefrom.

High molecular weight poly(alpha-olefin) solutions and articles made therefrom

A process for preparing ultra-high molecular weight poly(alpha-olefin) (UHMWPO) multi-filament yarns having improved tensile properties at higher productivity. The process includes drawing a solution yarn, then drawing a gel yarn and then drawing a dry yarn continuously in sequence to form a partially oriented yarn, winding up the partially oriented yarn, unrolling the yarn, drawing the partially oriented yarn to form a highly oriented yarn, cooling the highly oriented yarn under tension and winding up the highly oriented yarn.

Process for the preparation of UHMW multi-filament poly(alpha-olefin) yarns

Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.

Process for drawing gel-spun polyethylene yarns

A process for preparing ultra-high molecular weight polyethylene (UHMWPE) multi-filament yarns having improved tensile properties and the yarns and articles thereby produced.

High tenacity polyethylene yarn

A process for drawing essentially diluent-free gel-spun polyethylene multi-filament yarns in a forced convection air oven and the drawn yarns produced thereby, The process conditions of draw ratio, stretch rate, residence time, oven length and feed speed are selected in specific relation to one another so as to achieve enhanced efficiency and productivity. The drawn yarns are useful in armor, composites, fishing line, ropes, sutures, fabrics and other applications.

Growing community of inventors

Richmond, VA, United States of America

Charles Arnett