Title:
FLAME RETARDANT POLYESTER FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/113956
Kind Code:
A1
Abstract:
The present invention relates to flame retardant polyester fiber and a preparation method therefor. The flame retardant polyester fiber is obtained by spinning flame retardant polyester followed by ultraviolet irradiation. The limiting oxygen index value of the flame retardant polyester fiber is greater than 30, and in addition to the flame retardancy, the fiber possesses a desirable anti-dripping property. A flame retardant, 2-carboxyethyl (phenyl)phosphinic acid, is used for improving the flame retardancy of the polyester, and unsaturated double bonds contained in the polyester are opened to form crosslinking points under ultraviolet irradiation to form mesh structures, so that the thermal resistance of the polyester fiber is increased, and the anti-dripping property of the polyester fiber is improved. By introducing unsaturated double bonds into polyester and effectively and safely controlling crosslinking of the polyester after the preparation of polyester fiber is completed, the content of gel in the fiber obtained after crosslinking is greatly increased, and therefore, the mechanical property, thermal resistance, chemical resistance, and flame retardancy of polyester fiber are greatly improved.
Inventors:
WANG LILI (CN)
YIN LIXIN (CN)
LIU QIANHAN (CN)
LI FENG (CN)
YIN LIXIN (CN)
LIU QIANHAN (CN)
LI FENG (CN)
Application Number:
PCT/CN2016/103177
Publication Date:
July 06, 2017
Filing Date:
October 25, 2016
Export Citation:
Assignee:
JIANGSU HENGLI CHEMICAL FIBRE CO LTD (CN)
International Classes:
D01F6/84; C08G63/692; C08G63/83; C08G63/85; C25B3/13; D01D5/08; D01F1/07
Foreign References:
| CN105463610A | 2016-04-06 | |||
| CN102277653A | 2011-12-14 | |||
| CN101759947A | 2010-06-30 | |||
| CN101307139A | 2008-11-19 | |||
| CN102181958A | 2011-09-14 | |||
| CN101333287A | 2008-12-31 | |||
| JP2005105203A | 2005-04-21 |
Other References:
None
See also references of EP 3348682A4
See also references of EP 3348682A4
Attorney, Agent or Firm:
TONGSHE INTELLECTUAL PROPERTY AGENCY (CN)
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