EP 1392898 A1 20040303 - A POLYURETHANE TYPE ELASTIC FIBER, AND A PROCESS OF PREPARING FOR THE SAME
Title (en)
A POLYURETHANE TYPE ELASTIC FIBER, AND A PROCESS OF PREPARING FOR THE SAME
Title (de)
ELASTISCHE FASER DES TYPS POLYURETHAN UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
FIBRE ELASTIQUE DE TYPE POLYURETHANE, ET PROCEDE DE PREPARATION DE LA FIBRE
Publication
Application
Priority
- KR 0200714 W 20020419
- KR 20010020975 A 20010419
- KR 20010020976 A 20010419
Abstract (en)
[origin: WO02086208A1] Disclosed a polyurethane elastic fiber and a method of producing the polyurethane elastic fiber. The method of producing the polyurethane elastic fiber is characterized in that polyol with high molecular weight and diisocyanate with excessive amount are mixed in a condition of a designated shear rate and prepolymerized to produce a prepolymer, the prepolymer is reacted with the chain extender and the chain terminator to produce a polymer, and an additive is added to the polymer and the final polymer is spun. The method of producing the polyurethane elastic fiber according to the present invention improves the stability of the polymer, has an excellent spinnability even in high-speed spinning, and remarkably reduces the generation of wave yarns. The polyurethane elastic fiber of the present invention is excellent in heat resistance, thermosetting efficiency and coherence strength between the monofilaments.
IPC 1-7
IPC 8 full level
C08G 18/32 (2006.01); D01F 6/70 (2006.01); C08G 18/08 (2006.01); C08G 18/10 (2006.01); C08G 18/48 (2006.01)
CPC (source: EP US)
C08G 18/0895 (2013.01 - EP US); C08G 18/10 (2013.01 - EP US); C08G 18/4854 (2013.01 - EP US); D01F 6/70 (2013.01 - EP US); Y10T 428/2913 (2015.01 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
DE IT
DOCDB simple family (publication)
WO 02086208 A1 20021031; CN 1270006 C 20060816; CN 1509352 A 20040630; EP 1392898 A1 20040303; EP 1392898 A4 20070829; JP 2004526069 A 20040826; US 2004121149 A1 20040624
DOCDB simple family (application)
KR 0200714 W 20020419; CN 02808480 A 20020419; EP 02718687 A 20020419; JP 2002583718 A 20020419; US 47501103 A 20031216