EP 4172412 A1 20230503 - WATER-RESISTANT FIBROUS MATERIAL AND METHOD FOR MANUFACTURING IT
Title (en)
WATER-RESISTANT FIBROUS MATERIAL AND METHOD FOR MANUFACTURING IT
Title (de)
WASSERBESTÄNDIGES FASERMATERIAL UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
MATÉRIAU FIBREUX RÉSISTANT À L'EAU ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- SE 2050753 A 20200624
- IB 2021055590 W 20210624
Abstract (en)
[origin: WO2021260606A1] The present invention relates to a water-resistant fibrous material, such as flexible sheet, paper or paperboard, comprising a foam-formed fibrous ply, wherein said foam-formed fibrous ply has been subjected to grafting with a fatty acid halide to render the foam-formed fibrous ply water-resistant. The present invention further relates to a method for manufacturing the water-resistant fibrous material.
IPC 8 full level
D21H 11/20 (2006.01); D21F 11/00 (2006.01); D21H 17/14 (2006.01); D21H 21/16 (2006.01)
CPC (source: EP KR SE US)
D21F 11/00 (2013.01 - EP KR); D21F 11/002 (2013.01 - KR SE US); D21H 11/20 (2013.01 - EP KR SE); D21H 17/11 (2013.01 - EP); D21H 17/14 (2013.01 - EP SE); D21H 17/18 (2013.01 - US); D21H 21/16 (2013.01 - EP KR SE US); D21H 21/56 (2013.01 - EP KR); D21H 27/10 (2013.01 - EP KR US); D21H 27/38 (2013.01 - US)
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 2021260606 A1 20211230; CA 3186605 A1 20211230; CN 115917083 A 20230404; EP 4172412 A1 20230503; EP 4172412 A4 20240626; KR 20230026353 A 20230224; SE 2050753 A1 20211225; SE 544175 C2 20220222; US 2023243105 A1 20230803
DOCDB simple family (application)
IB 2021055590 W 20210624; CA 3186605 A 20210624; CN 202180045495 A 20210624; EP 21830264 A 20210624; KR 20227045202 A 20210624; SE 2050753 A 20200624; US 202118003188 A 20210624