E.i. Dupont De Nemours and Company

Invista North America S.a.r.l.

Rakesh H Mehta

Mark Andrew Harmer

Garret D Figuly

Steven Raymond Lustig

Marc Bruce Goldfinger

Roger Harquail French

Gregory Paul Weeks

Anand Jagota

Timothy Dee Gierke

H Vaughn Samuelson

Anthony J Soroka

Bibiana Onoa

Paula Beyer Hietpas

This invention relates to the field of nanotechnology. Specifically the invention describes a method for cutting a multiplicity of nano-structures to uniform dimensions of length, length and width, or area, or to a specific distribution of lengths or area using various cutting techniques.

Method for providing nano-structures of uniform length

A hetero-composite yarn useful in making garments comprises a combined biconstituent yarn and a companion yarn, wherein the biconstituent yarn comprises an axial core comprising a thermoplastic elastomeric polymer, and a plurality of wings attached to the core and comprising a thermoplastic, non-elastomeric polymer.

Hetero-composite yarn, fabrics thereof and methods of making

A stretchable synthetic polymer fiber comprising an axial core formed from an elastomeric polymer, and two or more wings attached to the core and formed from a non-elastomeric polymer, wherein preferably at least one of the wings is mechanically locked with the axial core. The fibers can be used to form garments, such as hosiery. A spinneret pack for producing such fibers is also provided.

Stretchable fibers of polymers, spinnerets useful to form the fibers, and articles produced therefrom

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Hockessin, DE, United States of America

Rakesh H Mehta