EP 2307595 B1 20130410 - BICOMPONENT FIBERS WITH AN EXTERIOR COMPONENT COMPRISING POLYPROPYLENE
Title (en)
BICOMPONENT FIBERS WITH AN EXTERIOR COMPONENT COMPRISING POLYPROPYLENE
Title (de)
ZWEI-KOMPONENTEN-FASERN MIT EINER POLYPROPYLENHALTIGEN AUSSENKOMPONENTE
Title (fr)
FIBRES BICOMPOSANTS DOTÉES D UN COMPOSANT EXTÉRIEUR COMPRENANT DU POLYPROPYLÈNE
Publication
Application
Priority
- EP 2009059805 W 20090729
- EP 08161327 A 20080729
- EP 09802519 A 20090729
Abstract (en)
[origin: EP2154275A1] The present invention relates to bicomponent fibers with improved bonding properties. In particular, the present invention relates to bicomponent fibers comprising an exterior component, which in turn comprises a polypropylene that has been degraded from a first melt flow index MFI 1 (measured according to ISO 1133, condition L, 230°C, 2.16 kg) to a second melt flow index MFI 2 (measured according to ISO 1133, condition L, 230°C, 2.16 kg), such that the degradation ratio MFI 1 /MFI 2 is within a well-defined range and such that the second melt flow index MFI 2 is in the range from 50 dg/min to 300 dg/min. Further, the present invention relates to nonwovens, composites and laminates comprising said bicomponent fibers. The present invention also relates to a process for making such bicomponent fibers, nonwovens, composites and laminates.
IPC 8 full level
D01D 5/30 (2006.01); D01F 8/06 (2006.01); D04H 1/54 (2012.01); D04H 1/541 (2012.01); D04H 1/544 (2012.01); D04H 3/007 (2012.01); D04H 3/16 (2006.01); D04H 13/00 (2006.01)
CPC (source: EP US)
D01D 5/30 (2013.01 - EP US); D01F 8/06 (2013.01 - EP US); D04H 1/54 (2013.01 - EP US); D04H 1/5412 (2020.05 - EP US); D04H 1/544 (2013.01 - EP US); D04H 3/007 (2013.01 - EP US); D04H 3/16 (2013.01 - EP US); D04H 13/00 (2013.01 - EP US); Y10T 428/2929 (2015.01 - EP US); Y10T 442/641 (2015.04 - EP US)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2154275 A1 20100217; EP 2307595 A1 20110413; EP 2307595 B1 20130410; US 2011189916 A1 20110804; WO 2010012769 A1 20100204
DOCDB simple family (application)
EP 08161327 A 20080729; EP 09802519 A 20090729; EP 2009059805 W 20090729; US 200913055013 A 20090729