Title:
POLYURETHANE ELASTIC FIBER WITH FLAME RETARDANT FUNCTION AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/215501
Kind Code:
A1
Abstract:
The present invention discloses a polyurethane elastic fiber with flame retardant function and preparation method thereof, the polyurethane elastic fiber uses polyether diol or polyester diol containing phosphorus as the raw material, reacts with 4,4'-diphenylmethyl alkane diisocyanate to prepare the prepolymer, carries out chain extending on the prepolymer using organic amine to obtain the polyurethane solution, and carries out dry spinning by the polymer solution to obtain the polyurethane fiber, the limiting oxygen index of the prepared polyurethane fiber is between 25-32％.
Inventors:
CHEN YONGJUN (CN)
MA QIANLI (CN)
MA QIANLI (CN)
Application Number:
PCT/CN2019/096374
Publication Date:
October 29, 2020
Filing Date:
July 17, 2019
Export Citation:
Assignee:
YANTAI TAYHO ADVANCED MAT CO LTD (CN)
International Classes:
D01F6/94; D01F1/07; C08G18/32; C08G18/46; C08G18/50
Foreign References:
| CN103590138A | 2014-02-19 | |||
| CN103102490A | 2013-05-15 | |||
| CN105420844A | 2016-03-23 | |||
| CN103628173A | 2014-03-12 | |||
| CN107602804A | 2018-01-19 | |||
| JP2019026962A | 2019-02-21 |
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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