WO2021205757A1 - 液晶ポリエステル繊維およびその製造方法 - Google Patents

液晶ポリエステル繊維およびその製造方法 Download PDF

Info

Publication number
WO2021205757A1
WO2021205757A1 PCT/JP2021/006143 JP2021006143W WO2021205757A1 WO 2021205757 A1 WO2021205757 A1 WO 2021205757A1 JP 2021006143 W JP2021006143 W JP 2021006143W WO 2021205757 A1 WO2021205757 A1 WO 2021205757A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal polyester
polyester fiber
phase polymerization
yarn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/006143
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
桂一 池端
幸広 寺本
潤也 井出
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to KR1020227033370A priority Critical patent/KR102765332B1/ko
Priority to EP21784840.7A priority patent/EP4134473B1/en
Priority to CN202180027748.9A priority patent/CN115398048B/zh
Priority to JP2022514326A priority patent/JP7408783B2/ja
Priority to DK21784840.7T priority patent/DK4134473T3/da
Publication of WO2021205757A1 publication Critical patent/WO2021205757A1/ja
Priority to US17/954,502 priority patent/US20230055144A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
    • C08G63/605—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds the hydroxy and carboxylic groups being bound to aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/80—Solid-state polycondensation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/18—Separating or spreading
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/063—Load-responsive characteristics high strength
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs

Definitions

  • the melting point of the liquid crystal polyester preferably used in the present invention (hereinafter, may be referred to as Mp 0 ) is preferably in the range of 250 to 380 ° C., more preferably 255 to 370 ° C., still more preferably 260 to 360 ° C. , Even more preferably 260-330 ° C.
  • the melting point referred to here is the main absorption peak temperature measured and observed by a differential scanning calorimeter (DSC; "TA3000" manufactured by METTLER TEPCO) in accordance with the JIS K 7121 test method.
  • the tension applied in the solid phase polymerization step can be adjusted according to the total fineness of the liquid crystal polyester fibers used in the solid phase polymerization step, but from the viewpoint of stabilizing the yarn path and suppressing yarn breakage.
  • it may be 0.001 to 0.06 cN / dtex, preferably 0.003 to 0.05 cN / dtex, and more preferably 0.005 to 0.04 cN / dtex.
  • the preheating step may be performed in the same manner.
  • solid-phase polymerization is performed by heat-treating the spun yarn adjusted to a specific water content at 230 ° C. or higher, and the strength of the spun yarn can be improved without increasing the total CEG amount.
  • the temperature of the solid phase polymerization may be preferably 240 ° C. or higher, more preferably 250 ° C. or higher, from the viewpoint of improving the strength. Further, the temperature of the solid phase polymerization may be lower than the melting point (Mp) of the liquid crystal polyester fiber (spun yarn) to be subjected to the solid phase polymerization step in order to prevent melting.
  • Mp- It may be 80 ° C.
  • Example 9 Same as in Example 1 except that the rotation speed of the second roller 4 is set so that the elongation ratio (rotation speed of the second roller 4 / rotation speed of the first roller 2) becomes 1.100 times in the continuous heat treatment.
  • Table 5 shows the analysis results of the obtained liquid crystal polyester fiber (heat-treated yarn) and the analysis results during the process such as the strength before preheating and the water content of the process.
  • Example 10 In the continuous heat treatment, the same as in Example 1 except that the rotation speed of the second roller 4 is set so that the elongation ratio (rotation speed of the second roller 4 / rotation speed of the first roller 2) becomes 1.000 times.
  • Table 5 shows the analysis results of the obtained liquid crystal polyester fiber (heat-treated yarn) and the analysis results during the process such as the strength before preheating and the water content of the process.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Polyesters Or Polycarbonates (AREA)
PCT/JP2021/006143 2020-04-10 2021-02-18 液晶ポリエステル繊維およびその製造方法 Ceased WO2021205757A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020227033370A KR102765332B1 (ko) 2020-04-10 2021-02-18 액정 폴리에스테르 섬유 및 그 제조 방법
EP21784840.7A EP4134473B1 (en) 2020-04-10 2021-02-18 Liquid crystal polyester fibers and method for producing same
CN202180027748.9A CN115398048B (zh) 2020-04-10 2021-02-18 液晶聚酯纤维及其制造方法
JP2022514326A JP7408783B2 (ja) 2020-04-10 2021-02-18 液晶ポリエステル繊維およびその製造方法
DK21784840.7T DK4134473T3 (da) 2020-04-10 2021-02-18 Flydende krystal-polyesterfibre og fremstillingsfremgangsmåde herfor
US17/954,502 US20230055144A1 (en) 2020-04-10 2022-09-28 Liquid crystal polyester fibers and method for producing same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-070885 2020-04-10
JP2020070885 2020-04-10

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/954,502 Continuation US20230055144A1 (en) 2020-04-10 2022-09-28 Liquid crystal polyester fibers and method for producing same

Publications (1)

Publication Number Publication Date
WO2021205757A1 true WO2021205757A1 (ja) 2021-10-14

Family

ID=78022558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/006143 Ceased WO2021205757A1 (ja) 2020-04-10 2021-02-18 液晶ポリエステル繊維およびその製造方法

Country Status (8)

Country Link
US (1) US20230055144A1 (https=)
EP (1) EP4134473B1 (https=)
JP (1) JP7408783B2 (https=)
KR (1) KR102765332B1 (https=)
CN (1) CN115398048B (https=)
DK (1) DK4134473T3 (https=)
TW (1) TWI872220B (https=)
WO (1) WO2021205757A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024128109A1 (ja) * 2022-12-14 2024-06-20 株式会社クラレ 液晶ポリエステル繊維およびその製造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118441390B (zh) * 2024-05-31 2025-10-17 武汉纺织大学 一种增强液晶态聚芳酯纳米纤维的方法
CN121250610B (zh) * 2025-12-02 2026-03-20 浙江海利得科技有限公司 一种改善液晶聚芳酯纤维的固相聚合后热处理方法及装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118567B2 (https=) * 1975-08-01 1986-05-13 Teijin Ltd
JPS61287922A (ja) * 1985-06-14 1986-12-18 Toyobo Co Ltd 弾性ポリエステルの製造法
JPH03260114A (ja) * 1990-03-07 1991-11-20 Kuraray Co Ltd 溶融異方性ポリマーからなる高弾性率繊維の製造方法
JP2016125051A (ja) 2014-12-26 2016-07-11 株式会社クラレ シート状物、このシート状物を用いた振動減衰部材およびその製造方法
JP2016176161A (ja) * 2015-03-20 2016-10-06 東レ株式会社 液晶ポリエステルマルチフィラメント
JP2018188742A (ja) * 2017-04-28 2018-11-29 東レ株式会社 液晶ポリエステルマルチフィラメント
WO2020175216A1 (ja) * 2019-02-26 2020-09-03 株式会社クラレ 液晶ポリエステルマルチフィラメント及びその製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1760104B1 (en) * 2004-06-22 2019-01-02 Toray Industries, Inc. Liquid-crystalline resin, process for producing the same, composition of liquid-crystalline resin, and molded article
CN101622384B (zh) * 2007-02-28 2013-06-19 东丽株式会社 液晶聚酯纤维及其制造方法
US9011743B2 (en) * 2009-03-11 2015-04-21 Toray Industries, Inc. Liquid crystal polyester fibers and method for producing the same
US9758903B2 (en) * 2009-04-14 2017-09-12 Kolon Industries, Inc. Polyester fiber for airbag and preparation method thereof
KR101647414B1 (ko) * 2011-03-29 2016-08-10 도레이 카부시키가이샤 액정 폴리에스테르 섬유 및 그 제조 방법
CN106414820A (zh) * 2014-01-31 2017-02-15 东丽株式会社 液晶聚酯纤维及其制造方法
CN105542136A (zh) * 2015-12-30 2016-05-04 金发科技股份有限公司 一种液晶聚酯和由其组成的液晶聚酯组合物
CN105504247A (zh) * 2015-12-30 2016-04-20 金发科技股份有限公司 一种液晶聚酯和由其组成的液晶聚酯组合物
JP6834270B2 (ja) * 2016-09-07 2021-02-24 東レ株式会社 液晶ポリエステルマルチフィラメント
EP3926081A4 (en) * 2019-02-12 2023-07-05 Toray Industries, Inc. Liquid-crystal polyester multifilament, and high-level processed product comprising same
WO2022113802A1 (ja) * 2020-11-25 2022-06-02 株式会社クラレ 液晶ポリエステル繊維およびその製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118567B2 (https=) * 1975-08-01 1986-05-13 Teijin Ltd
JPS61287922A (ja) * 1985-06-14 1986-12-18 Toyobo Co Ltd 弾性ポリエステルの製造法
JPH03260114A (ja) * 1990-03-07 1991-11-20 Kuraray Co Ltd 溶融異方性ポリマーからなる高弾性率繊維の製造方法
JP2016125051A (ja) 2014-12-26 2016-07-11 株式会社クラレ シート状物、このシート状物を用いた振動減衰部材およびその製造方法
JP2016176161A (ja) * 2015-03-20 2016-10-06 東レ株式会社 液晶ポリエステルマルチフィラメント
JP2018188742A (ja) * 2017-04-28 2018-11-29 東レ株式会社 液晶ポリエステルマルチフィラメント
WO2020175216A1 (ja) * 2019-02-26 2020-09-03 株式会社クラレ 液晶ポリエステルマルチフィラメント及びその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4134473A4

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024128109A1 (ja) * 2022-12-14 2024-06-20 株式会社クラレ 液晶ポリエステル繊維およびその製造方法
JPWO2024128109A1 (https=) * 2022-12-14 2024-06-20
JP7742952B2 (ja) 2022-12-14 2025-09-22 株式会社クラレ 液晶ポリエステル繊維およびその製造方法

Also Published As

Publication number Publication date
DK4134473T3 (da) 2026-04-13
KR102765332B1 (ko) 2025-02-07
EP4134473A4 (en) 2024-09-25
EP4134473A1 (en) 2023-02-15
JP7408783B2 (ja) 2024-01-05
TWI872220B (zh) 2025-02-11
EP4134473B1 (en) 2026-04-01
CN115398048B (zh) 2024-12-10
US20230055144A1 (en) 2023-02-23
CN115398048A (zh) 2022-11-25
JPWO2021205757A1 (https=) 2021-10-14
TW202144636A (zh) 2021-12-01
KR20220140861A (ko) 2022-10-18

Similar Documents

Publication Publication Date Title
US10584429B2 (en) Method of producing liquid crystal polyester fibers
EP2123807B1 (en) Liquid crystalline polyester fiber and process for production of the same
EP2407583B1 (en) Liquid crystal polyester fibers and method for producing the same
JP7408783B2 (ja) 液晶ポリエステル繊維およびその製造方法
JP5286827B2 (ja) 液晶ポリエステル繊維
JP7147752B2 (ja) 液晶ポリエステルマルチフィラメント製撚糸コード、その製造方法およびそれを用いてなる製品
CN104024495A (zh) 液晶聚酯复丝
JP7214827B2 (ja) 液晶ポリエステルマルチフィラメント及びその製造方法
JP5428271B2 (ja) 液晶ポリエステル繊維の製造方法
JP6753110B2 (ja) 液晶ポリエステルマルチフィラメント、その製造方法および高次加工製品
JP7472787B2 (ja) 液晶ポリエステルマルチフィラメントおよびそれからなる高次加工製品
JP5098692B2 (ja) 液晶ポリエステル繊維の製造方法
JP5187224B2 (ja) 溶融液晶性ポリエステル繊維の製造方法
JP2017031525A (ja) 液晶ポリエステルマルチフィラメントの製造方法
JP5115471B2 (ja) 液晶性ポリエステル繊維及びその製造方法
JP7573373B2 (ja) 液晶ポリエステル繊維およびその製造方法
JP7742952B2 (ja) 液晶ポリエステル繊維およびその製造方法
JP7745782B2 (ja) 溶融異方性芳香族ポリエステル繊維およびその製造方法
JP6953776B2 (ja) 液晶ポリエステルマルチフィラメント
WO2025142832A1 (ja) 液晶ポリエステル繊維およびその製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21784840

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20227033370

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2022514326

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2021784840

Country of ref document: EP

Effective date: 20221110

NENP Non-entry into the national phase

Ref country code: DE

WWG Wipo information: grant in national office

Ref document number: 2021784840

Country of ref document: EP