Filter with eptfe and method of forming

Details Filter with eptfe and method of forming Filter with eptfe and method of forming

B - Operations, Transporting

01

D

B01D 39/16 (2006.01)

Patent

CA 2682984

A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim on both an upstream and downstream surface where both or neither support scrim is multilayered. The filter media may have an efficiency greater than, equal to, or less than HEPA.

L'invention concerne un produit de milieu filtrant et son procédé de préparation, ledit milieu filtrant pouvant être plissé et possédant au moins un renfort tissé constitué d'un matériau non tissé thermofusible ou un matériau non tissé lié par fusion à une couche de polytétrafluoroéthylène expansé. Le milieu filtrant peut posséder un renfort tissé unique doté d'une ou plusieurs couches et peut éventuellement posséder un renfort tissé sur une surface en amont et sur une surface en aval où les deux renforts tissés ou aucun des deux ne sont disposés en couches multiples. Le milieu filtrant peut avoir une efficacité plus grande, égale à ou inférieure à un filtre HEPA.

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