EP 4283038 A1 20231129 - WET-LAID NONWOVEN FABRIC SHEET
Title (en)
WET-LAID NONWOVEN FABRIC SHEET
Title (de)
NASSGELEGTE VLIESSTOFFFOLIE
Title (fr)
FEUILLE DE TISSU NON-TISSÉ DÉPOSÉE PAR VOIE HUMIDE
Publication
Application
Priority
- JP 2021008595 A 20210122
- JP 2022002066 W 20220120
Abstract (en)
The present invention relates to a wet-laid nonwoven fabric sheet configured to contain at least three types of thermoplastic fibers having different fiber diameters, wherein the fiber diameter ratio (R/r) of the fiber diameter R of the fiber having the largest fiber diameter to the fiber diameter r of the fiber having the smallest fiber diameter is 30 ≤ R/r ≤ 150, the average pore size is 0.10-15 µm, and the maximum frequency in the pore size distribution is 70% or more.
IPC 8 full level
D21H 15/02 (2006.01); D04H 1/732 (2012.01); D21H 13/24 (2006.01)
CPC (source: EP KR US)
D04H 1/43828 (2020.05 - EP); D04H 1/4383 (2020.05 - EP US); D04H 1/43835 (2020.05 - EP KR US); D04H 1/4391 (2013.01 - EP); D04H 1/55 (2013.01 - EP); D04H 1/70 (2013.01 - KR); D04H 1/732 (2013.01 - EP US); D21H 13/24 (2013.01 - EP); D21H 15/02 (2013.01 - EP)
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)
EP 4283038 A1 20231129; CN 116761914 A 20230915; JP 7452621 B2 20240319; JP WO2022158544 A1 20220728; KR 20230132789 A 20230918; TW 202237923 A 20221001; US 2024102216 A1 20240328; WO 2022158544 A1 20220728
DOCDB simple family (application)
EP 22742663 A 20220120; CN 202280010951 A 20220120; JP 2022002066 W 20220120; JP 2022504253 A 20220120; KR 20237024869 A 20220120; TW 111102578 A 20220121; US 202218273562 A 20220120