E.i. Dupont De Nemours and Company

Glen Edward Simmonds

Joseph Anthony Perrotto

William Charles Walker

Peter Popper

Albert S Tam

Joseph Leonda Jones

David Carlton Visser

Peter Artzt

T Joseph Dennes

Pankaj Arora

Stephen Mazur

Eric P Holowka

Stephane Francois Bazzana

Lakshmi Krishnamurthy

Heinz Mueller

William Robert Corcoran

Kurt Hans Wyss

Anil Kohli

Benjamin Fuchs

Karsten Keller

Antoine Schelling

John D Bomberger

Gregory James Scott

Richard Davis Bryson

Bill Corcoran

Bill Walker

Joseph T Dennes

This invention provides a multi-layer article comprising a first electrode material, a second electrode material, and a porous separator disposed between and in contact with the first and the second electrode materials, wherein the porous separator comprises a nanoweb consisting essentially of a plurality of nanofibers of a fully aromatic polyimide. Also provided is a method for preparing the multi-layer article, and an electrochemical cell employing the same. A multi-layer article comprising a polyimide nanoweb with enhanced properties is also provided.

Multi-layer article comprising polyimide nanoweb

A bag filter having a support structure clothed in a filter bag. The cloth of the filter bag is a composite of at least one substrate layer and at least one nanoweb bonded thereto in a face-to-face relationship. The nanoweb is positioned at the surface of the filter bag first exposed to the hot particle laden gas stream and can have a basis weight of greater than about 2 gsm.

Bag house filters and media

The present invention relates to fabrics that can be used in the manufacture of paper. The fabrics preferably have at least three regions of fabric with specified distributions of pore sizes. The fabrics disclosed herein are an effective alternative to conventional dewatering fabrics for removing water from the incipient paper, which can provide energy cost savings in subsequent elevated temperature drying steps.

Dewatering fabrics

The present invention relates to a novel spun yarn, and a method and apparatus for the manufacture thereof.

Spun yarn, and method and apparatus for the manufacture thereof

A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Stretch break method and product

A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine, and an apparatus for performing such method, that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Stretch break method, apparatus and product

A method for starting or stopping each of at least two separately controllable roll-sets () used for processing a yarn (Y) in a stretch-break process, each roll-set comrpising at least two rolls, the method is characterized by the step of each roll-set, changing the speed of each roll from an initial condition to a steady state condition in accordance with a predetermined sequence and in coordination with a change in speed of at least one of the other rolls, such that simultaneous complete breakage of a yarn (Y) being processed in a stretch-break process is minimized.

Method for control of yarn processing equipment

A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process. The yarn includes discontinuous and, optionally, continuous filaments.

Growing community of inventors

Avondale, PA, United States of America

Glen Edward Simmonds