EP 4150143 A1 20230322 - SULFONATED POLYSTYRENE NONWOVEN
Title (en)
SULFONATED POLYSTYRENE NONWOVEN
Title (de)
SULFONIERTER POLYSTYROLVLIESSTOFF
Title (fr)
NON-TISSÉ DE POLYSTYRÈNE SULFONÉ
Publication
Application
Priority
- US 202063022718 P 20200511
- US 2021030406 W 20210503
Abstract (en)
[origin: WO2021231114A1] Sulfonated polystyrene fibers having an average diameter from 450 nm to 2000 nm and a capacity from 0.05 meq/g to 2.0 meq/g.
IPC 8 full level
D04H 1/728 (2012.01); B01D 39/16 (2006.01); C02F 1/62 (2006.01); D04H 1/4282 (2012.01); D04H 1/4382 (2012.01); D04H 1/58 (2006.01)
CPC (source: EP)
B01D 39/1623 (2013.01); C02F 1/44 (2013.01); D04H 1/4282 (2013.01); D04H 1/4382 (2013.01); D04H 1/58 (2013.01); D04H 1/728 (2013.01); B01D 2239/025 (2013.01); B01D 2239/0631 (2013.01); B01D 2239/1233 (2013.01); C02F 1/42 (2013.01); C02F 2101/20 (2013.01)
Citation (search report)
See references of WO 2021231114A1
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 2021231114 A1 20211118; CN 115702268 A 20230214; EP 4150143 A1 20230322; JP 2023526197 A 20230621; KR 20230041959 A 20230327
DOCDB simple family (application)
US 2021030406 W 20210503; CN 202180038094 A 20210503; EP 21726819 A 20210503; JP 2022568370 A 20210503; KR 20227042286 A 20210503