GB904240A - Improvements in the spinning of polyacrylonitrile - Google Patents

Improvements in the spinning of polyacrylonitrile

Info

Publication number
GB904240A
GB904240A GB3778/60A GB377860A GB904240A GB 904240 A GB904240 A GB 904240A GB 3778/60 A GB3778/60 A GB 3778/60A GB 377860 A GB377860 A GB 377860A GB 904240 A GB904240 A GB 904240A
Authority
GB
United Kingdom
Prior art keywords
barium
solvent
polyacrylonitrile
treatment
solution
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
GB3778/60A
Inventor
Wilhelm Georg Schmidt
Alan Thomas Bucknall
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB3778/60A priority Critical patent/GB904240A/en
Priority to ES0264599A priority patent/ES264599A1/en
Priority to FR851677A priority patent/FR1278592A/en
Publication of GB904240A publication Critical patent/GB904240A/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
    • D01F13/00—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
    • D01F13/04—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like of synthetic polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

In the manufacture of artificial filaments by spinning a solution of polyacrylonitrile, the solvent is regenerated by precipitating barium sulphate therein. The treatment may be effected (1) by addition of a soluble barium compound, preferably barium thiocyanate to the spent solvent; (2) by addition of a barium compound, such as barium carbonate or barium hydroxide, whose solubility in polyacrylonitrile solvent, while low, is greater than that of barium sulphate; or (3) by passing the solvent through a bed comprising such a low-solubility barium compound. The polyacrylonitrile solvent may be a solution of sodium thiocyanate and treatment may be carried out before or after concentration of this solution. The treatment is preferably effected at a raised temperature, e.g. 35 DEG C. or above.
GB3778/60A 1960-02-03 1960-02-03 Improvements in the spinning of polyacrylonitrile Expired GB904240A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3778/60A GB904240A (en) 1960-02-03 1960-02-03 Improvements in the spinning of polyacrylonitrile
ES0264599A ES264599A1 (en) 1960-02-03 1961-02-02 Improvements in the spinning of polyacrylonitrile
FR851677A FR1278592A (en) 1960-02-03 1961-02-03 Improvements in the spinning of polymers, in particular in the spinning of polyacrylonitrile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3778/60A GB904240A (en) 1960-02-03 1960-02-03 Improvements in the spinning of polyacrylonitrile

Publications (1)

Publication Number Publication Date
GB904240A true GB904240A (en) 1962-08-22

Family

ID=9764751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3778/60A Expired GB904240A (en) 1960-02-03 1960-02-03 Improvements in the spinning of polyacrylonitrile

Country Status (2)

Country Link
ES (1) ES264599A1 (en)
GB (1) GB904240A (en)

Also Published As

Publication number Publication date
ES264599A1 (en) 1961-07-01

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