EP 4146369 A1 20230315 - FILTER MEDIA WITH IRREGULAR STRUCTURE AND/OR REVERSIBLY STRETCHABLE LAYERS
Title (en)
FILTER MEDIA WITH IRREGULAR STRUCTURE AND/OR REVERSIBLY STRETCHABLE LAYERS
Title (de)
FILTERMEDIEN MIT UNREGELMÄSSIGER STRUKTUR UND/ODER REVERSIBEL DEHNBAREN SCHICHTEN
Title (fr)
MILIEU FILTRANT PRÉSENTANT UNE STRUCTURE IRRÉGULIÈRE ET/OU DES COUCHES ÉTIRABLES DE MANIÈRE RÉVERSIBLE
Publication
Application
Priority
- US 202016866201 A 20200504
- US 2021030609 W 20210504
Abstract (en)
[origin: WO2021226049A1] Articles and methods relating to filter media are generally provided. In some embodiments, a filter media has an irregular surface structure. For instance, the filter media may comprise a plurality of peaks that are irregular in one or more ways. A ratio of a peak height standard deviation to an average peak height may be greater than or equal to 0.05, and/or a ratio of a peak spacing standard deviation to an average peak spacing may be greater than or equal to 0.08. In some embodiments, a filter media comprises a non- woven fiber web having a layer thickness of greater than 0.3 mm and/or a stiffness of less than or equal to 100 mg.
IPC 8 full level
B01D 39/08 (2006.01); B01D 39/16 (2006.01); B01D 46/52 (2006.01); B32B 1/00 (2006.01); B32B 5/02 (2006.01); B32B 7/035 (2019.01); B32B 38/00 (2006.01)
CPC (source: EP)
B01D 39/083 (2013.01); B01D 39/1623 (2013.01); B01D 39/1692 (2013.01); B01D 46/0001 (2013.01); B32B 3/28 (2013.01); B32B 5/022 (2013.01); B32B 5/267 (2021.05); B32B 5/268 (2021.05); B32B 5/269 (2021.05); B32B 5/271 (2021.05); B32B 7/12 (2013.01); B01D 2239/0233 (2013.01); B01D 2239/025 (2013.01); B01D 2239/0435 (2013.01); B01D 2239/0464 (2013.01); B01D 2239/0492 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/0627 (2013.01); B01D 2239/0631 (2013.01); B01D 2239/0654 (2013.01); B01D 2239/0668 (2013.01); B01D 2239/0672 (2013.01); B01D 2239/0681 (2013.01); B01D 2239/069 (2013.01); B01D 2239/083 (2013.01); B01D 2239/1225 (2013.01); B01D 2239/1233 (2013.01); B01D 2239/1258 (2013.01); B01D 2239/1291 (2013.01); B32B 2250/20 (2013.01); B32B 2255/02 (2013.01); B32B 2255/26 (2013.01); B32B 2260/021 (2013.01); B32B 2262/0215 (2013.01); B32B 2262/0246 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/0284 (2013.01); B32B 2262/0292 (2013.01); B32B 2262/124 (2021.05); B32B 2307/51 (2013.01); B32B 2307/718 (2013.01); B32B 2307/724 (2013.01); B32B 2307/732 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021226049 A1 20211111; WO 2021226049 A8 20211216; CN 115397539 A 20221125; EP 4146369 A1 20230315
DOCDB simple family (application)
US 2021030609 W 20210504; CN 202180028800 A 20210504; EP 21799567 A 20210504