FR2215490A1 - Soln spinning of polyacrylonitrile - using spinnerets with specif dimen-sioned orifices - Google Patents

Soln spinning of polyacrylonitrile - using spinnerets with specif dimen-sioned orifices

Info

Publication number
FR2215490A1
FR2215490A1 FR7402841A FR7402841A FR2215490A1 FR 2215490 A1 FR2215490 A1 FR 2215490A1 FR 7402841 A FR7402841 A FR 7402841A FR 7402841 A FR7402841 A FR 7402841A FR 2215490 A1 FR2215490 A1 FR 2215490A1
Authority
FR
France
Prior art keywords
orifices
spinnerets
polyacrylonitrile
sioned
specif
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
FR7402841A
Other languages
French (fr)
Other versions
FR2215490B1 (en
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.)
SCHWARZA CHEMIEFASER
Original Assignee
SCHWARZA CHEMIEFASER
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 SCHWARZA CHEMIEFASER filed Critical SCHWARZA CHEMIEFASER
Publication of FR2215490A1 publication Critical patent/FR2215490A1/en
Application granted granted Critical
Publication of FR2215490B1 publication Critical patent/FR2215490B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • 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

Landscapes

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

Abstract

Mfr. of polyacrylonitrile fibres having improved characteristics, by spinning 18-28 wt. % solns. of these polymers (pref. prepd. by soln. polymsn.) in DMF into aq. DMF-contg. coagulation baths, using spinnerets for 0.1-5 tex filaments; comprises employing spinneret assemblies built-up from single spinnerets and whose total number of orifices is above 1.4 x 104/tex, as a function of the titre of the filament to be mfd., and the total surface area of all the orifices is 1-2, pref. 1.4-1.6% of the total surface area of the spinneret assembly. Rate of output is increased and coagulation of filaments is uniform, eliminating voids and flaws in fibres.
FR7402841A 1973-01-30 1974-01-29 Soln spinning of polyacrylonitrile - using spinnerets with specif dimen-sioned orifices Granted FR2215490A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD16851473A DD102166A1 (en) 1973-01-30 1973-01-30

Publications (2)

Publication Number Publication Date
FR2215490A1 true FR2215490A1 (en) 1974-08-23
FR2215490B1 FR2215490B1 (en) 1977-09-16

Family

ID=5489898

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7402841A Granted FR2215490A1 (en) 1973-01-30 1974-01-29 Soln spinning of polyacrylonitrile - using spinnerets with specif dimen-sioned orifices

Country Status (3)

Country Link
DD (1) DD102166A1 (en)
FR (1) FR2215490A1 (en)
HU (1) HU173045B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394623A1 (en) 1977-06-14 1979-01-12 Rhone Poulenc Textile FACULTY

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2215490B1 (en) 1977-09-16
HU173045B (en) 1979-02-28
DD102166A1 (en) 1973-12-12

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Legal Events

Date Code Title Description
ST Notification of lapse