PHOSPHORUS-BASED FLAME RETARDANT POLYESTER-BASED ARTIFICIAL HAIR FIBER AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2015/108267

A1

A flame retardant polyester-based artificial hair fiber of the present invention comprises: (A) 100 parts by weight of a thermoplastic polyester resin; (B) 10 to 30 parts by weight of a polymeric phosphorus-based flame retardant; (C) 0.1 to 3 parts by weight of a chain extender; and (D) 0.5 to 3 parts by weight of sodium antimonate. A flame retardant having a repeating unit of chemical formula 1 and a mean molecular weight ranging from 80,000 to 150,000 can be used preferably for the polymeric phosphorus-based flame retardant (B). The flame retardant polyester-based artificial hair fiber can be prepared by: extruding a composition in which the polyester resin, the polymeric phosphorus-based flame retardant, the chain extender and sodium antimonate are mixed, so as to prepare the composition in a pellet form; drying the pellet so as to have a moisture content of 500 ppm or less; melt spinning the dried pellet; drawing the spun undrawn fiber at a draw ratio of 2-5 times thereof; and heat treating the drawn fiber in a heat treatment device heated to the temperature of 150-280°C.

KIM JONG CHUN (KR)
OH SUNG MIN (KR)
KIM CHAN YOUNG (KR)

PCT/KR2014/010283

July 23, 2015

October 30, 2014

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UNO & COMPANY LTD (KR)

D01F1/07; D01F8/14

WO2013172387A1

2013-11-21

US20140000751A1	2014-01-02
KR100849517B1	2008-07-31
US20120121843A1	2012-05-17
JP2005273033A	2005-10-06

CHOI, DUK KYU (KR)
최덕규 (KR)

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