EP 4146850 A1 20230315 - BICOMPONENT FIBERS INCLUDING ETHYLENE/ALPHA-OLEFIN INTERPOLYMERS
Title (en)
BICOMPONENT FIBERS INCLUDING ETHYLENE/ALPHA-OLEFIN INTERPOLYMERS
Title (de)
BIKOMPONENTENFASERN MIT ETHYLEN/ALPHA-OLEFIN-INTERPOLYMEREN
Title (fr)
FIBRES BICOMPOSÉES COMPRENANT DES INTER-POLYMÈRES D'ÉTHYLÈNE/ALPHA-OLÉFINE
Publication
Application
Priority
- US 202063021790 P 20200508
- US 2021031010 W 20210506
Abstract (en)
[origin: WO2021226300A1] Provided are bicomponent fibers. The bicomponent fiber comprises a first region and a second region. The first region comprises a first ethylene/alpha-olefin interpolymer, and the second region comprises a second ethylene/alpha-olefin interpolymer. The first ethylene/alpha-olefin interpolymer has a highest peak melting temperature (Tm) less than 130˚C and at least 3.5˚C greater than a highest peak melting temperature of the second ethylene/alpha-olefin interpolymer. The bicomponent fibers can be used for forming nonwovens that in aspect have improved tensile strength, elongation at break, and/or abrasion resistance.
IPC 8 full level
D01D 5/34 (2006.01); C08L 23/08 (2006.01); D01F 8/06 (2006.01); D04H 3/007 (2012.01)
CPC (source: EP KR US)
D01D 5/34 (2013.01 - EP KR US); D01F 8/06 (2013.01 - EP KR US); D04H 1/4291 (2013.01 - US); D04H 1/43828 (2020.05 - US); D04H 1/44 (2013.01 - US); D04H 3/007 (2013.01 - EP KR); D04H 3/147 (2013.01 - EP KR); D10B 2321/02 (2013.01 - US)
Citation (search report)
See references of WO 2021226300A1
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 2021226300 A1 20211111; AR 122466 A1 20220914; BR 112022022450 A2 20221220; CN 115516142 A 20221223; EP 4146850 A1 20230315; JP 2023524203 A 20230609; KR 20230009910 A 20230117; US 2023257919 A1 20230817
DOCDB simple family (application)
US 2021031010 W 20210506; AR P210101205 A 20210504; BR 112022022450 A 20210506; CN 202180033440 A 20210506; EP 21728382 A 20210506; JP 2022564106 A 20210506; KR 20227042284 A 20210506; US 202117996970 A 20210506