GB1432285A - Polyimide filament and process for its manufacture - Google Patents

Polyimide filament and process for its manufacture

Info

Publication number
GB1432285A
GB1432285A GB3804974A GB3804974A GB1432285A GB 1432285 A GB1432285 A GB 1432285A GB 3804974 A GB3804974 A GB 3804974A GB 3804974 A GB3804974 A GB 3804974A GB 1432285 A GB1432285 A GB 1432285A
Authority
GB
United Kingdom
Prior art keywords
filament
copolyimide
filaments
passing
draw ratio
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.)
Expired
Application number
GB3804974A
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.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn Co
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 Upjohn Co filed Critical Upjohn Co
Publication of GB1432285A publication Critical patent/GB1432285A/en
Expired legal-status Critical Current

Links

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
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • 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
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • D01F6/74—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

1432285 Copolyimide filaments UPJOHN CO 30 Aug 1974 [12 Oct 1973] 38049/74 Addition to 1354926 Heading B5B [Also in Division C3] A filament comprises a copolyimide having the recurring unit where in 10 to 30% of the units R is and in the remainder R is The preparation of such polymers is described in Specification 1,354,926 and solutions thereof in polar solvents in Specification 1,354,927. The filaments may be prepared by spinning a solution of the polymer into a coagulant bath, passing the filament through at least one aqueous bath, and removing most of the volatile materials by passing it over at least one heated roller while drawing it, e.g. at 100‹ to 220‹ C., with a draw ratio of 1 x to 3 x . The filament may then be oriented, e.g. by drawing it over a surface heated at 325‹ to 400‹ C. to a draw ratio up to 5 x and subsequently tempered. Numerous suitable solvents, coagulants and surfactants are specified and the spinning procedure is exemplified in detail. The effect of choice of coagulant or cross-section is described, the use of glycerine or a glycol giving a "pseudo hollow" structure, Fig. 3, leading to advantageous high bulk properties.
GB3804974A 1973-10-12 1974-08-30 Polyimide filament and process for its manufacture Expired GB1432285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40577773A 1973-10-12 1973-10-12

Publications (1)

Publication Number Publication Date
GB1432285A true GB1432285A (en) 1976-04-14

Family

ID=23605190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3804974A Expired GB1432285A (en) 1973-10-12 1974-08-30 Polyimide filament and process for its manufacture

Country Status (6)

Country Link
JP (1) JPS5217133B2 (en)
CA (1) CA1035496A (en)
FR (1) FR2247556B1 (en)
GB (1) GB1432285A (en)
IT (1) IT1021745B (en)
NL (1) NL7413337A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040042A2 (en) * 1980-05-09 1981-11-18 Ube Industries, Ltd. Process for producing aromatic polyimide filaments
US5681656A (en) * 1994-05-13 1997-10-28 Toyo Boseki Kabushiki Kaisha Polyamide-imide fibers for a bag filter
GB2364667A (en) * 2000-07-10 2002-02-06 Du Pont Polymer filaments having open hollow cross-section
US6855425B2 (en) 2000-07-10 2005-02-15 Invista North America S.A.R.L. Polymer filaments having profiled cross-section
CN116103779A (en) * 2023-02-14 2023-05-12 江苏奥神新材料股份有限公司 Polyimide fiber with high heat resistance and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335028A (en) * 1976-09-13 1978-04-01 Asahi Chem Ind Co Ltd Special filament
AT377016B (en) * 1983-03-09 1985-01-25 Chemiefaser Lenzing Ag METHOD FOR THE PRODUCTION OF FIRE-RESISTANT, HIGH-TEMPERATURE-RESISTANT POLYIMIDE FIBERS
JPS6290314A (en) * 1985-10-17 1987-04-24 Toray Ind Inc Copolymide fiber

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040042A2 (en) * 1980-05-09 1981-11-18 Ube Industries, Ltd. Process for producing aromatic polyimide filaments
EP0040042A3 (en) * 1980-05-09 1982-08-04 Ube Industries, Ltd. Process for producing aromatic polyimide filaments
US5681656A (en) * 1994-05-13 1997-10-28 Toyo Boseki Kabushiki Kaisha Polyamide-imide fibers for a bag filter
GB2364667A (en) * 2000-07-10 2002-02-06 Du Pont Polymer filaments having open hollow cross-section
US6855425B2 (en) 2000-07-10 2005-02-15 Invista North America S.A.R.L. Polymer filaments having profiled cross-section
CN116103779A (en) * 2023-02-14 2023-05-12 江苏奥神新材料股份有限公司 Polyimide fiber with high heat resistance and preparation method thereof
CN116103779B (en) * 2023-02-14 2024-04-12 江苏奥神新材料股份有限公司 Polyimide fiber with high heat resistance and preparation method thereof

Also Published As

Publication number Publication date
DE2442203B2 (en) 1976-06-24
NL7413337A (en) 1975-04-15
JPS5217133B2 (en) 1977-05-13
DE2442203A1 (en) 1975-04-17
JPS5064522A (en) 1975-05-31
CA1035496A (en) 1978-07-25
FR2247556A1 (en) 1975-05-09
IT1021745B (en) 1978-02-20
FR2247556B1 (en) 1978-07-07

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)