Title:
COPOLYAMIDE RESIN, FIBER, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/273306
Kind Code:
A1
Abstract:
Provided in the present invention are a copolyamide resin, a fiber, a preparation method therefor and an application thereof. The copolyamide resin comprises the following segments: segment A): -NH(CH2)5NH CO(CH2)4CO-, and segment B): -NH(CH2)6NH CO(CH2)4CO-; a mole fraction ratio of the segment A) to the segment B) is (95:5)-(5:95), and a terminal amino group content of the copolyamide resin is 30-80 mmol/kg. The copolyamide resin of the present invention has advantages such as moderate viscosity, moisture content and terminal amino group content, low oligomer content, high molecular weight and narrow molecular weight distribution, and can meet requirements for use in the spinning field. Fibers obtained by spinning have excellent overall properties.
Inventors:
SUN CHAOXU (CN)
QIN BINGBING (CN)
LIU XIUCAI (CN)
QIN BINGBING (CN)
LIU XIUCAI (CN)
Application Number:
PCT/CN2022/071920
Publication Date:
January 05, 2023
Filing Date:
January 14, 2022
Export Citation:
Assignee:
CATHAY BIOTECH INC (CN)
CIBT AMERICA INC (US)
CIBT AMERICA INC (US)
International Classes:
C08G69/26; D01D5/08; D01D5/088; D01D5/096; D01D5/12; D01D7/00; D01D10/02; D01F6/80
Domestic Patent References:
| WO2015076233A1 | 2015-05-28 | |||
| WO1993000385A1 | 1993-01-07 |
Foreign References:
| CN111171312A | 2020-05-19 | |||
| CN107915846A | 2018-04-17 | |||
| CN104136541A | 2014-11-05 | |||
| JP2007138047A | 2007-06-07 | |||
| JP2007084936A | 2007-04-05 | |||
| CN1954014A | 2007-04-25 | |||
| CN106868623A | 2017-06-20 | |||
| CN106637471A | 2017-05-10 | |||
| CN112680826A | 2021-04-20 | |||
| CN106884215A | 2017-06-23 | |||
| CN110054891A | 2019-07-26 |
Attorney, Agent or Firm:
NTD UNIVATION INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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