E.i. Dupont De Nemours and Company

Invista North America S.a.r.l.

Harry Vaughn Samuelson

Vishal Bansal

Gurdial Singh

Hyunkook Shin

Hyun Sung Lim

Michael Robert Samuels

Edgar N Rudisill

Joseph Anthony Perrotto

Gregory Paul Weeks

Perry H Lin

Thomas M Ford

Vivek Kapur

Michael C Davis

Debora Flanagan Massouda

John Gerard Lavin

Dean H Smiley

The invention relates to nonwoven fabrics containing polymeric multiple component fibers which include a core component and a plurality of wing components attached to the core. The polymeric core component has an elasticity that is greater than the elasticity of at least one of the wing polymeric components. The fibers assume a spiral twist configuration in which the plurality of wings substantially spiral about the core. In a preferred embodiment, the nonwoven fabrics have elastic stretch and recovery properties with a textile-like hand.

Stretchable nonwoven web and method therefor

Processes for making fiber-on-end materials are provided. The materials can be used to make a variety of finished articles.

Processes for making fiber-on-end materials

A flame retardant fabric comprising bicomponent fibers having a sheath and a core wherein the sheath comprises a fully aromatic thermoplastic polymer with a Limited Oxygen Index of at least 26 and the core comprises a thermoplastic polymer.

Flame retardant fabric

This invention relates to single-wall carbon nanotube/polymer composites, a process for the production of such, and their use as fibers, films and articles.

Single-wall carbon nanotube-polymer composites

A spinneret plate for producing triangular; thermoplastic polymer filaments having 3 or 3 pair axially extending voids located along the convex sides of the filament.

Spinneret for producing a filament having a triangular cross-section and

Triangular thermoplastic polymer filaments having 3 or 3 pair axially extending voids located along the convex sides of the filament and spinneret plates for producing such filaments.

Filament having a triangular cross-section and 3 or 6 axially extending

Multilobal core conductive bicomponent sheath-core filaments are provided and methods for making the same.

Sheath-core spinning of multilobal conductive core filaments

A hollow fiber with a plurality of members projecting from its outer surface in an arc turned back on itself is formed from a spinneret having a segmented orifice wherein each segment comprises a first portion in the form of an arc curved about the center of the orifice, a second portion extending from the first and connected to a third portion which is in the form of a reverse curve with respect to the first.

Hollow fibers having curved members projecting therefor

A hollow fiber which contains within the hollow a co-spun hollow or solid filament. The solid filament is formed of polymer that can distribute energy within the hollow fiber while a co-spun hollow inner filament can also act as a vessel for transportation or separation of fluids. Spinnerets for co-spinning such filaments are of one piece construction.

Co-spun filament within a hollow filament and spinneret for production

Spinneret for hollow fibers having curved spacing members projecting

Spinneret for a co-spun filament within a hollow filament

A spinneret plate the outlet orifice of which is made up of slots, at least two of the slots being arc shaped, useful to produce textile filaments that are readily fracturable in a fluid jet to produce a yarn having free ends.

Spinneret plate

An antistatic filament having a polymeric sheath and a conductive polymeric core of a defined nature, the core constituting less than 10% of the cross-sectional area of the filament.

Antistatic filament having a polymeric sheath and a conductive polymeric

An antistatic synthetic polymer having a T.sub.g (NMR) of less than 25.degree. C., a log R.sub.s of less than 10 and containing phosphonium sulfonate groups can be used to improve the conductivity of synthetic fiber-forming polymers.

Growing community of inventors

Chadds Ford, PA, United States of America

Harry Vaughn Samuelson