Meltblown ionomer microfibers and non-woven webs made...

Details Meltblown ionomer microfibers and non-woven webs made... Meltblown ionomer microfibers and non-woven webs made...

D - Textiles, Paper

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D01F 6/30 (2006.01) B01D 39/08 (2006.01) B01D 39/16 (2006.01) D01D 5/098 (2006.01) D04H 1/42 (2006.01) D04H 1/56 (2006.01) D04H 3/16 (2006.01)

Patent

CA 2264948

Ethylene/carboxylic acid ionomers may be made, using a meltspun, and particularly meltblown process, into microfibers and thence to filter webs which are efficient gas filters for removing particles having a diameter of from 0.5 to 20 microns from a gas. The webs are effective without a deliberate specific post-charging operation during production. A deliberate post-charging operation can also be carried out to result in further efficiency.

L'invention concerne des ionomères d'éthylène/acide carboxylique, qui sont soumis à un processus de filage par fusion, et en particulier de fusion-soufflage, pour former des microfibres puis des voiles de filtrage. Ces voiles de filtrage constituent des filtres de gaz aptes à extraire d'un gaz des particules ayant un diamètre de 0,5 à 20 microns. Les voiles sont efficaces sans qu'une opération de post-chargement spécifique soit effectuée au cours de la fabrication. Une opération de post-chargement peut néanmoins être effectuée pour accroître l'efficacité desdits voiles.

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