EP 1453995 B1 20071121 - METHOD FOR MAKING PROPYLENE MONOFILAMENTS, PROPYLENE MONOFILAMENTS AND THEIR USE
Title (en)
METHOD FOR MAKING PROPYLENE MONOFILAMENTS, PROPYLENE MONOFILAMENTS AND THEIR USE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON MONOFILAMENTEN AUS POLYPROPYLEN, MONOFILAMENTE AUS POLYPROPYLEN SOWIE DEREN VERWENDUNG
Title (fr)
PROCEDE DE FABRICATION DE MONOFILAMENTS DE POLYPROPYLENE, MONOFILAMENTS DE POLYPROPYLENE ET LEUR UTILISATION
Publication
Application
Priority
- CH 22162001 A 20011205
- EP 0213649 W 20021203
Abstract (en)
[origin: WO03048434A1] The invention concerns a method for making propylene monofilaments having a 230 DEG C/2.16 kg melt flow index (MFI) from 2 to 16 g/10 min, having a diameter larger than 0.050 mm and improved abrasion resistance, which consists in adding to the polypropylene 20 to 0.1 wt. % of an additive upstream of the extruder, spinning the molten material in a water bath, drawing it and winding it. The invention also concerns a polypropylene monofilament having a 230 DEG C/2.6 kg melt flow index (MFI) from 2 to 16 g/10 min, having a diameter greater than 0.050 mm and improved abrasion resistance, exhibiting a strength of at least 50 cN/tex, for an elongation corresponding to the maximum tensile stress (elongation at rupture) of at least 30 %. Furthermore, it has an abrasion of less than 0.05 % and a relative tensile energy absorption > 100 % after being treated for 24 hours at 120 DEG C.
IPC 8 full level
D01F 1/10 (2006.01); D01F 6/06 (2006.01); D01F 6/46 (2006.01)
CPC (source: EP KR US)
D01D 5/098 (2013.01 - KR); D01F 1/10 (2013.01 - EP KR US); D01F 6/06 (2013.01 - EP KR US); D01F 6/46 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03048434 A1 20030612; AU 2002352212 A1 20030617; AU 2002352212 B2 20060928; BR 0215107 A 20041103; CA 2468876 A1 20030612; CA 2468876 C 20090428; CN 1311110 C 20070418; CN 1599810 A 20050323; DE 60223714 D1 20080103; DE 60223714 T2 20081030; EP 1453995 A1 20040908; EP 1453995 B1 20071121; ES 2301695 T3 20080701; JP 2005511906 A 20050428; KR 100583668 B1 20060526; KR 20040071169 A 20040811; PL 373741 A1 20050905; PT 1453995 E 20080130; TW 200304510 A 20031001; TW I227756 B 20050211; US 2005067733 A1 20050331; ZA 200403799 B 20061025
DOCDB simple family (application)
EP 0213649 W 20021203; AU 2002352212 A 20021203; BR 0215107 A 20021203; CA 2468876 A 20021203; CN 02824345 A 20021203; DE 60223714 T 20021203; EP 02787899 A 20021203; ES 02787899 T 20021203; JP 2003549608 A 20021203; KR 20047008552 A 20021203; PL 37374102 A 20021203; PT 02787899 T 20021203; TW 91135148 A 20021204; US 49740804 A 20040602; ZA 200403799 A 20040518