E.i. Dupont De Nemours and Company

Other

Cummins Filtration Ip, Inc.

Hageun Suh

B Lynne Wiseman

Hyun Sung Lim

Young H Kim

Pankaj Arora

Robert Anthony Marin

Kurt Hans Wyss

Anil Kohli

Simon Frisk

Henricus Jacobus Cornelis Gommeren

Guanghui Chen

Antoine Schelling

David Keith Graham, Jr

W Douglas Bates, Iii

Douglas W Iii Bates

A nonwoven web of fibers that have a number average diameter of less than 1 micron. The web can have a Poisson Ratio of less than about 0.8, a solidity of at least about 20%, a basis weight of at least about 1 gsm, and a thickness of at least 1 micrometer.

Nanowebs

Filtration media including at least one layer of nanofibers having average diameters less than 1000 nanometers with optional scrim layer(s) are disclosed for filtering particulate matter in liquid. The media achieve flow rates of at least 0.055 L/min/cmat relatively high levels of solidity. The media have also advantageously been found to have non-diminishing flow rates as differential pressures increase between 2 psi (14 kPa) and 15 psi (100 kPa).

Filtration media for liquid filtration

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 0.1 gsm.

Thermally stabilized bag house filters and media

A composite fabric formed by depositing a web of nanofibers electroblown from a first polymer onto a first support web comprising fibers of larger average diameter than the nanofibers spun from a compatible material, in the absence of an adhesive between the webs, and solvent-bonding the webs together.

Filtration media for filtering particulate material from gas streams

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Chadds Ford, PA, United States of America

Hageun Suh