EP0372622A3 - Acrylic precursor for carbon fibres and method for its preparation - Google Patents

Acrylic precursor for carbon fibres and method for its preparation Download PDF

Info

Publication number
EP0372622A3
EP0372622A3 EP19890203017 EP89203017A EP0372622A3 EP 0372622 A3 EP0372622 A3 EP 0372622A3 EP 19890203017 EP19890203017 EP 19890203017 EP 89203017 A EP89203017 A EP 89203017A EP 0372622 A3 EP0372622 A3 EP 0372622A3
Authority
EP
European Patent Office
Prior art keywords
acrylic
carbon fibres
yarn
followed
controlled
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.)
Granted
Application number
EP19890203017
Other languages
German (de)
French (fr)
Other versions
EP0372622A2 (en
EP0372622B1 (en
Inventor
Franco Tasselli
Franco Cognigni
Renato Di Bonito
Armando Mariano
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.)
ENICHEM FIBRE SpA
Original Assignee
ENICHEM FIBRE SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11201004&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0372622(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ENICHEM FIBRE SpA filed Critical ENICHEM FIBRE SpA
Publication of EP0372622A2 publication Critical patent/EP0372622A2/en
Publication of EP0372622A3 publication Critical patent/EP0372622A3/en
Application granted granted Critical
Publication of EP0372622B1 publication Critical patent/EP0372622B1/en
Anticipated expiration legal-status Critical
Revoked 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
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • 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
    • D01D5/06—Wet spinning methods
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • 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
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent

Abstract

A method for preparing acrylic precursors with improved characteristics suitable for transformation into carbon fibres of superior mechanical characteristics comprises wet-spinning an acrylic polymer dissolved in dimethylacetamide followed by coagulation in a solvent-non solvent binary mixture bath of rigorously controlled composition and temperature, and a series of controlled-condition stretching operations with interposed washing stages, followed by yarn drying before its final collection.
The method is characterised essentially by its coagulation stage, which is conducted under such rigorously controlled bath temperature and composition conditions as to obtain at the end of the process an acrylic yarn which has a perfectly compact structure practically free of flaws (voids), a perfectly circular cross-section and mechanical characteristics which are distinctly better than those of acrylic yarns of identical composition obtained by spinning processes of the known art.
The specific destination of the acrylic yarn is the production of high-performance carbon fibres.
EP89203017A 1988-12-02 1989-11-28 Acrylic precursor for carbon fibres and method for its preparation Revoked EP0372622B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2283688 1988-12-02
IT8822836A IT1227677B (en) 1988-12-02 1988-12-02 ACRYLIC PRECURSOR FOR CARBON FIBERS AND PROCEDURE TO OBTAIN IT

Publications (3)

Publication Number Publication Date
EP0372622A2 EP0372622A2 (en) 1990-06-13
EP0372622A3 true EP0372622A3 (en) 1991-04-10
EP0372622B1 EP0372622B1 (en) 1995-04-12

Family

ID=11201004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89203017A Revoked EP0372622B1 (en) 1988-12-02 1989-11-28 Acrylic precursor for carbon fibres and method for its preparation

Country Status (7)

Country Link
EP (1) EP0372622B1 (en)
KR (1) KR920007111B1 (en)
AT (1) ATE121146T1 (en)
DE (1) DE68922190T2 (en)
ES (1) ES2070897T3 (en)
IL (1) IL92521A (en)
IT (1) IT1227677B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2265679C2 (en) * 2003-11-27 2005-12-10 МГУ им. М.В. Ломоносова, Химический факультет Method of production of fibers
KR101148428B1 (en) * 2009-12-31 2012-05-23 주식회사 효성 Method of preparing precursors for polyacrylonitrile-based carbon fibers
KR101239424B1 (en) * 2010-12-30 2013-03-06 주식회사 효성 Preparation method for carbon fiber precursor
IT202100029576A1 (en) 2021-11-23 2023-05-23 Montefibre Mae Tech S R L High speed acrylic fiber production process and related apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044534A2 (en) * 1980-07-23 1982-01-27 Hoechst Aktiengesellschaft High-modulus polyacryl nitrile filaments and fibres, and process for manufacturing them
EP0223199A2 (en) * 1985-11-18 1987-05-27 Toray Industries, Inc. Process for producing high-strenght, high-modulus carbon fibers
EP0255109A2 (en) * 1986-07-28 1988-02-03 Mitsubishi Rayon Co., Ltd. Process for producing an acrylic fiber having high fiber characteristics

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239455B2 (en) * 1973-07-23 1977-10-05
JPS5848643B2 (en) * 1977-04-05 1983-10-29 東レ株式会社 High purity acrylic carbon fiber

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044534A2 (en) * 1980-07-23 1982-01-27 Hoechst Aktiengesellschaft High-modulus polyacryl nitrile filaments and fibres, and process for manufacturing them
EP0223199A2 (en) * 1985-11-18 1987-05-27 Toray Industries, Inc. Process for producing high-strenght, high-modulus carbon fibers
EP0255109A2 (en) * 1986-07-28 1988-02-03 Mitsubishi Rayon Co., Ltd. Process for producing an acrylic fiber having high fiber characteristics

Also Published As

Publication number Publication date
KR900010088A (en) 1990-07-06
IL92521A (en) 1992-08-18
IL92521A0 (en) 1990-08-31
KR920007111B1 (en) 1992-08-24
EP0372622A2 (en) 1990-06-13
DE68922190T2 (en) 1995-09-07
IT1227677B (en) 1991-04-23
IT8822836A0 (en) 1988-12-02
DE68922190D1 (en) 1995-05-18
ES2070897T3 (en) 1995-06-16
EP0372622B1 (en) 1995-04-12
ATE121146T1 (en) 1995-04-15

Similar Documents

Publication Publication Date Title
EP2233616B1 (en) Processes for producing flameproof fiber and carbon fiber
CN109853086B (en) Lignin/cellulose acetate based electrostatic spinning carbon fiber and preparation method and application thereof
US3556729A (en) Process for oxidizing and carbonizing acrylic fibers
CN111118671B (en) Preparation method of 25k large-tow carbon fiber
US3528774A (en) Formation of high modulus,high strength graphite yarns
EP0372622A3 (en) Acrylic precursor for carbon fibres and method for its preparation
US5269984A (en) Process of making graphite fiber
KR930000564B1 (en) Method for the preparation of carbon fibers
US3666417A (en) Process for production of carbon fibers
US4039341A (en) Production of carbon articles
IE39405B1 (en) Improvements relating to the production of filaments yarns and fibres of poly
EP0279687B1 (en) Graphite fiber
US3681023A (en) Production of carbon fibers
CN114457444B (en) Preparation method of high-strength polyacrylonitrile fiber
EP0487062B1 (en) Process for producing carbon fibers having high strand strength
JPS6452811A (en) Production of high-tenacity acrylic fiber
JPH055224A (en) Production of carbon fiber having excellent uniformity
CN111088540A (en) Preparation method of high-performance polyacrylonitrile fiber
JPS6278220A (en) Production of ribbon-like carbon fiber
CN116479557A (en) Method for preparing large-size tow carbon fibers by spinning
JPS5747921A (en) Preparation of carbon fiber
CN113718374A (en) Preparation method of low-cost asphalt-based carbon fiber for composite material
KR100407804B1 (en) Multi-hollow pitch carbon fiber and preparation method of the same
JP3239490B2 (en) Optically anisotropic pitch for high compressive strength carbon fiber and method for producing carbon fiber
JPH03279422A (en) Production of hollow carbon fiber

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR LI LU NL SE

17P Request for examination filed

Effective date: 19910704

17Q First examination report despatched

Effective date: 19940623

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR LI LU NL SE

REF Corresponds to:

Ref document number: 121146

Country of ref document: AT

Date of ref document: 19950415

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 68922190

Country of ref document: DE

Date of ref document: 19950518

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2070897

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3016158

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: TORAY INDUSTRIES, INC.

Effective date: 19960108

NLR1 Nl: opposition has been filed with the epo

Opponent name: TORAY INDUSTRIES, INC.

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961111

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19961114

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19961118

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19961119

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19961127

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19961128

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19961129

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19961201

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19961206

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19961209

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19970116

Year of fee payment: 8

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971128

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971128

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971129

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971129

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971128

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

EUG Se: european patent has lapsed

Ref document number: 89203017.2

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19980601

27W Patent revoked

Effective date: 19980418

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST