RU97119924A - METHOD FOR PRODUCING FIBERS FROM POLY (PARA-Phenyleneterephthalamide) - Google Patents

METHOD FOR PRODUCING FIBERS FROM POLY (PARA-Phenyleneterephthalamide)

Info

Publication number
RU97119924A
RU97119924A RU97119924/12A RU97119924A RU97119924A RU 97119924 A RU97119924 A RU 97119924A RU 97119924/12 A RU97119924/12 A RU 97119924/12A RU 97119924 A RU97119924 A RU 97119924A RU 97119924 A RU97119924 A RU 97119924A
Authority
RU
Russia
Prior art keywords
melting zone
polyamide
polymer solution
solid mixture
zone
Prior art date
Application number
RU97119924/12A
Other languages
Russian (ru)
Other versions
RU2161557C2 (en
Inventor
Марие Роелофс Вилхелмус
Хендрикус Мариа Спиекер Антониус
Геррит Варинга Йоханнес
Original Assignee
Акцо Нобель Н.В.
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
Priority claimed from NL1000276A external-priority patent/NL1000276C2/en
Application filed by Акцо Нобель Н.В. filed Critical Акцо Нобель Н.В.
Publication of RU97119924A publication Critical patent/RU97119924A/en
Application granted granted Critical
Publication of RU2161557C2 publication Critical patent/RU2161557C2/en

Links

Claims (6)

1. Способ получения волокон из полиамида, состоящего целиком или большей частью из поли (пара-фенилентерефталамида), по которому прядильную массу получают охлаждением концентрированной по меньшей мере 98 вес.% серной кислоты до ниже ее температуры коагуляции, с последующим соединением таким образом охлажденной серной кислоты с полиамидом и перемешиванием их с образованием твердой смеси, содержащей в расчете на вес смеси по меньшей мере 15% полиамида с характеристической вязкостью по меньшей мере 2,5 и затем нагревом полученной твердой смеси и подачей ее к фильерам формования под давлением и формованием с воздушной прослойкой, отличающийся тем, что нагрев и обработку повышенным давлением твердой смеси проводят в устройстве, в котором полимерный раствор проходит через по меньшей мере две отдельные зоны, зону плавления и зону повышенного давления последовательно, причем полимерный раствор пластифицируют и перемешивают в по меньшей мере зоне плавления.1. A method of producing fibers from polyamide, consisting entirely or mostly of poly (para-phenylene terephthalamide), in which the spinning mass is obtained by cooling concentrated at least 98 wt.% Sulfuric acid to below its coagulation temperature, followed by combining thus cooled sulfuric acids with polyamide and mixing them to form a solid mixture containing, based on the weight of the mixture, at least 15% polyamide with an intrinsic viscosity of at least 2.5 and then heating the resulting solid mixture and applying it to the injection molding dies and molding with an air gap, characterized in that the heating and pressure treatment of the solid mixture is carried out in a device in which the polymer solution passes through at least two separate zones, the melting zone and the increased pressure zone in series, moreover, the polymer solution is plasticized and mixed in at least the melting zone. 2. Способ по п. 1, отличающийся тем, что полимерный раствор дегазирует в зоне плавления при помощи вакуума. 2. The method according to p. 1, characterized in that the polymer solution is degassed in the melting zone using vacuum. 3. Способ по п. 1 или 2, отличающийся тем, что зона плавления содержит пластификатор смешения, имеющий вращающийся вал, снабженный рядом пластифицирующих лопаток или ножей, причем вал установлен в цилиндрическом коробе. 3. The method according to p. 1 or 2, characterized in that the melting zone comprises a mixing plasticizer having a rotating shaft provided with a number of plasticizing blades or knives, the shaft being installed in a cylindrical box. 4. Способ по п. 3, отличающийся тем, что вращающийся вал снабжен на конце выпускным червяком. 4. The method according to p. 3, characterized in that the rotating shaft is provided at the end with an exhaust worm. 5. Способ по п. 4, отличающийся тем, что по меньшей мере одна перегородка установлена вверх по течению от выпускного червяка. 5. The method according to p. 4, characterized in that at least one septum is installed upstream of the outlet worm. 6. Способ по любому из предшествующих пунктов, отличающийся тем, что прядильный раствор в зоне повышенного давления подают к фильерам с помощью бустерного насоса. 6. The method according to any one of the preceding paragraphs, characterized in that the dope in the high pressure zone is supplied to the dies using a booster pump.
RU97119924/12A 1995-05-02 1996-04-25 Method of manufacturing fibers from poly(p-phenyleneterephthalamide) RU2161557C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1000276 1995-05-02
NL1000276A NL1000276C2 (en) 1995-05-02 1995-05-02 Process for the production of fibers from poly (p-phenylene terephthalamide).

Publications (2)

Publication Number Publication Date
RU97119924A true RU97119924A (en) 1999-11-10
RU2161557C2 RU2161557C2 (en) 2001-01-10

Family

ID=19760966

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97119924/12A RU2161557C2 (en) 1995-05-02 1996-04-25 Method of manufacturing fibers from poly(p-phenyleneterephthalamide)

Country Status (11)

Country Link
US (1) US5882563A (en)
EP (1) EP0823872B1 (en)
JP (1) JP3927999B2 (en)
KR (1) KR100517721B1 (en)
CN (1) CN1067937C (en)
AT (1) ATE197690T1 (en)
DE (1) DE69611036T2 (en)
ES (1) ES2153576T3 (en)
NL (1) NL1000276C2 (en)
RU (1) RU2161557C2 (en)
WO (1) WO1996034732A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1002882C2 (en) * 1996-04-17 1997-10-21 Akzo Nobel Nv Sulfur-containing p-aramid yarn.
DE69701071T2 (en) * 1996-08-09 2000-07-06 Akzo Nobel Nv Para-aromatic polyamide yarn with low linear density and process for its production
EP1650251A1 (en) * 2004-10-22 2006-04-26 Teijin Twaron B.V. Method for dissolving PPTA in sulfuric acid using a twin screw extruder
CN100395381C (en) * 2005-05-10 2008-06-18 东华大学 Method of continuously preparing poly terephthaloyl-p-phenylene diamine fibre
CN100427650C (en) * 2005-11-02 2008-10-22 东华大学 High shearing rate method for spinning poly-terephthaloyl p-phenylenediamine fibre
CN101600756B (en) 2007-02-03 2013-10-16 帝人芳纶有限公司 Method for dissolving aramid polymer in sulfuric acid using a double shaft kneader
CH700932B1 (en) * 2007-05-14 2010-11-15 List Holding Ag Method and installation for producing a dope for the manufacture of a polymer fiber.
CN101555631B (en) * 2008-04-10 2011-04-06 中国神马集团有限责任公司 Industrial method for preparing PPTA spinning slurry with solid sulphuric acid
CN103469314A (en) * 2013-09-13 2013-12-25 东华大学 Method for quickly preparing PPTA (poly-paraphenylene terephthalamide) resin liquid crystal spinning solution with ultrahigh molecular weight
CN104975357A (en) * 2014-04-02 2015-10-14 东华大学 Preparation method of poly (p-phenylene terephthamide) spinning solution
CN103952775B (en) * 2014-04-25 2016-08-24 中国石化仪征化纤有限责任公司 A kind of horizontal-type biaxial dissolves defoaming device
RU2702246C2 (en) * 2015-04-22 2019-10-07 Тейджин Арамид Б.В. Cord comprising multi-fiber para-aramid yarn including non-circular fibers
CN105780158A (en) * 2016-04-05 2016-07-20 江苏恒通印染集团有限公司 Method for preparing high-modulus para-aramid fibers
CN105839211A (en) * 2016-05-16 2016-08-10 江苏恒通印染集团有限公司 Method for cleaning para-position aramid fiber strand

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414645A (en) * 1964-06-19 1968-12-03 Monsanto Co Process for spinning wholly aromatic polyamide fibers
NL6810515A (en) * 1968-07-25 1968-10-25
US3907963A (en) * 1971-08-02 1975-09-23 Monsanto Co Melt extrusion
US3873072A (en) * 1971-08-02 1975-03-25 Monsanto Co Melt extrusion
US4016236A (en) * 1974-05-15 1977-04-05 Asahi Kasei Kogyo Kabushiki Kaisha Process for manufacturing aromatic polymer fibers
NL172680C (en) * 1979-06-08 1983-10-03 Akzo Nv PROCESS FOR MANUFACTURING FIBERS FROM POLY-P-PHENYLENE DEPTHALAMIDE AND THE PRODUCTS PRODUCED SO.
AT392972B (en) * 1988-08-16 1991-07-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING SOLUTIONS OF CELLULOSE AND DEVICE FOR IMPLEMENTING THE METHOD
US5094690A (en) * 1988-08-16 1992-03-10 Lenzing Aktiengesellschaft Process and arrangement for preparing a solution of cellulose
US5246776A (en) * 1989-06-28 1993-09-21 Michelin Recherche Et Technique Aramid monofilament and method of obtaining same
CH679290A5 (en) * 1989-10-04 1992-01-31 List Ag
CH686406A5 (en) * 1990-04-11 1996-03-29 List Ag Continuously operating mixing kneader.
KR930702560A (en) * 1990-10-15 1993-09-09 미리암 디. 메코너헤이 Method of mixing additive solution in para-aramid dope stream
GB9219693D0 (en) * 1992-09-17 1992-10-28 Courtaulds Plc Forming solutions

Similar Documents

Publication Publication Date Title
RU97119924A (en) METHOD FOR PRODUCING FIBERS FROM POLY (PARA-Phenyleneterephthalamide)
CN1097607C (en) Method and device for recovery of linear polyester
US4370290A (en) Process for producing aromatic polyimide filaments
EP0377963A2 (en) Process for the production of biaxially oriented rigid rod heterocyclic liquid crystalline polymer films
CN108660524B (en) Sea-island fiber composite melt spinning method using water-soluble modified PVA as sea
US4971744A (en) Two-stage process for preparing aromatic polyamide film
DE1905677A1 (en) Process for crystallizing polyesters
GB1181249A (en) A method for the production of Crimped Fibres from Thermoplastic Macromolecular Materials
ATE173770T1 (en) METHOD FOR PRODUCING CELLULOSE MOLDED BODY
EP0821708A1 (en) Process for producing a polyamide based on a dicarboxylic acid and a diamine
EP0881054A1 (en) Degasification of polymers susceptible to hydrolysis
RU2161557C2 (en) Method of manufacturing fibers from poly(p-phenyleneterephthalamide)
JPS6248688B2 (en)
US5584919A (en) Pelletized pre-dope granules of cellulose and tertiary amine oxide, spinning solution, of cellulose and process for making them
CN113166977A (en) Method and apparatus for melt spinning filaments
JPH026826A (en) Production of porous molded product
US3518337A (en) Process for dispersing partially miscible polymers in melt spinnable fiber-forming polymers
CN1093761A (en) The quenching of long filament and solidifying in ultrasonic wave
US3989677A (en) Process for the production of polyamides
JPH08510488A (en) Polyester resin composition for producing high modulus fiber and film
CN110129912B (en) Para-aramid fibrid and continuous production method thereof
EP0592911A1 (en) Method for manufacturing injection moulded foamed polylactide objects of high strength and stiffness
CN108532027B (en) PA/PVA sea-island fiber with water-soluble sea phase and production process thereof
JP2652599B2 (en) Microporous polymer and method for producing the same
US4301105A (en) Process for spinning poly(polymethylene terephthalamide) fiber