EP 4279644 A1 20231122 - SEA-ISLAND TYPE COMPOSITE MULTIFILAMENT, ULTRAFINE MULTIFILAMENT, AND ULTRAFINE FIBER STRUCTURE
Title (en)
SEA-ISLAND TYPE COMPOSITE MULTIFILAMENT, ULTRAFINE MULTIFILAMENT, AND ULTRAFINE FIBER STRUCTURE
Title (de)
VERBUNDMULTIFILAMENT VOM MEERESINSELTYP, ULTRAFEINES MULTIFILAMENT UND ULTRAFEINE FASERSTRUKTUR
Title (fr)
MULTIFILAMENT COMPOSITE DE TYPE ÎLE ET MER, MULTIFILAMENT ULTRAFIN ET STRUCTURE DE FIBRE ULTRAFINE
Publication
Application
Priority
- JP 2021004876 A 20210115
- JP 2022000846 W 20220113
Abstract (en)
Provided are a sea-island type composite multifilament which includes a thermoplastic elastomer resin as an island component, and an ultrafine multifilament prepared from such a sea-island type composite multifilament. The sea-island type composite multifilament includes an island component and a sea component. The island component includes a thermoplastic elastomer resin (A) having at least one of a Shore A hardness of 90 or less, a Shore D hardness of 60 or less, or a Rockwell hardness (R scale) of 70 or less. The sea component includes a water-soluble or easily alkali-soluble thermoplastic resin (B). The sea-island type composite multifilament has an average single island diameter of 8000 nm or less.
IPC 8 full level
D01F 8/12 (2006.01); D01F 6/00 (2006.01); D01F 8/10 (2006.01); D01F 8/14 (2006.01); D03D 15/33 (2021.01); D03D 15/56 (2021.01); D04B 1/18 (2006.01); D04B 21/00 (2006.01)
CPC (source: EP US)
D01D 5/088 (2013.01 - US); D01D 5/30 (2013.01 - US); D01D 5/36 (2013.01 - EP); D01F 6/82 (2013.01 - EP); D01F 6/86 (2013.01 - EP); D01F 8/10 (2013.01 - US); D01F 8/12 (2013.01 - US); D01F 8/14 (2013.01 - US); D04B 1/16 (2013.01 - US); D04B 1/18 (2013.01 - EP); D01F 8/10 (2013.01 - EP); D01F 8/12 (2013.01 - EP); D01F 8/14 (2013.01 - EP); D10B 2321/06 (2013.01 - US); D10B 2331/02 (2013.01 - US); D10B 2331/04 (2013.01 - US); D10B 2401/06 (2013.01 - US); D10B 2401/20 (2013.01 - US)
Citation (search report)
See references of WO 2022154035A1
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 4279644 A1 20231122; CN 116829774 A 20230929; JP WO2022154035 A1 20220721; US 2023366132 A1 20231116; WO 2022154035 A1 20220721
DOCDB simple family (application)
EP 22739440 A 20220113; CN 202280010106 A 20220113; JP 2022000846 W 20220113; JP 2022575622 A 20220113; US 202318220641 A 20230711