EP 4363645 A1 20240508 - A BI-COMPONENT FIBER FOR CUSHION MEMBERS
Title (en)
A BI-COMPONENT FIBER FOR CUSHION MEMBERS
Title (de)
ZWEIKOMPONENTENFASER FÜR POLSTERELEMENTE
Title (fr)
FIBRE À DEUX COMPOSANTS POUR DES ÉLÉMENTS D'AMORTISSEMENT
Publication
Application
Priority
- SE 2150856 A 20210701
- EP 2022067939 W 20220629
Abstract (en)
[origin: WO2023275165A1] A multi-component binder fiber for heat bonded nonwoven used in cushion members. A first component of the multi-component fiber comprises a first thermoplastic polymer, and a second component of the multi-component fiber comprises a second thermoplastic polymer. The second thermoplastic polymer is a block-copolymer. The block-copolymer is a co-polyester polyether comprising first blocks of a polyester and second blocks of an aliphatic polyether. The polyester in the first blocks comprises residues of a first alkylenediol, residues of terephthalic acid (benzene-1,4-dicarboxylic acid), and residues of isophthalic acid (benzene-1,3-dicarboxylic acid). The aliphatic polyether in second blocks comprises residues of a second alkylenediol. The melting point of the first thermoplastic polymer is at least 200°C. Further, the molar ratio of residues of terephthalic acid to residues of isophthalic acid in the first blocks of the polyester is 2:1 to 4:1 and the molar ratio of residues of the first alkylenediol of the polyester to the residues of the second alkylenediol of the aliphatic polyether is at least 1:1.
IPC 8 full level
D04H 1/541 (2012.01); D01F 8/14 (2006.01); D04H 1/74 (2006.01)
CPC (source: EP)
D01F 8/14 (2013.01); D04H 1/5412 (2020.05); D04H 1/74 (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 2023275165 A1 20230105; CN 117716081 A 20240315; EP 4363645 A1 20240508
DOCDB simple family (application)
EP 2022067939 W 20220629; CN 202280046347 A 20220629; EP 22740842 A 20220629