Thermally stabilized bag house filters and media
AssigneeE. I. Du Pont de Nemours and Company
InventorsAnil Kohli, Antoine Schelling, Kurt Hans Wyss, B. Lynne Wiseman, Hageun Suh
Life of this patent
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Abstract
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.
Claims15
A bag filter comprising a support structure clothed in a filter bag, the cloth of said filter bag comprising a composite of at least one substrate layer and a first nanoweb layer having a basis weight of greater than about 0.1 gsm bonded thereto in a face-to-face relationship, wherein the nanoweb comprises polyamide nanofibers incorporating an effective amount of an antioxidant.
A bag filter comprising a support structure clothed in a filter bag, the cloth of said filter bag comprising a composite of a first substrate layer bonded in a face to face relationship to a nanoweb layer having a basis weight of greater than about 0.1 gsm and a second substrate layer bonded to the nanoweb layer and wherein the nanoweb is positioned on the upstream side of the filter bag, wherein the nanoweb comprises polyamide nanofibers incorporating an effective amount of an antioxidant.
Dependencies are inferred from the claim text.