Polyethylene protective yarn

Details Polyethylene protective yarn Polyethylene protective yarn

2005-12-27

2005-12-27

Edwards, N. (Department: 1774)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coating or impregnation specified as a size

C442S170000, C428S364000, C428S911000, C089S036020

Reexamination Certificate

active

06979660

ABSTRACT:
High strength polyethylene yarns useful in ballistic-resistant, cut-resistant and other applications, fabrics produced from these yarns and the methods by which the yarns and fabrics are made. An untwisted yarn of the invention comprises a plurality of filaments in essentially parallel array and from about 0.5 to 5 weight percent of a water-dispersible binder material covering less than half the surfaces of the filaments. The yarn has a tenacity greater than about 17 g/d, a tensile modulus greater than about 300 g/d, fewer than 20 entanglements/meter in a scoured state and a width less than given by the formulain-line-formulae description="In-line Formulae" end="lead"?W≦0.055√{square root over (d)}in-line-formulae description="In-line Formulae" end="tail"?where W is the yarn width in millimeters under a tensile load of 0.01 g/d measured on a flat surface and d is the yarn denier.

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