GB741847A - Improved method for producing filaments, films and like shaped structures from polymers and/or copolymers of acrylonitrile - Google Patents

Improved method for producing filaments, films and like shaped structures from polymers and/or copolymers of acrylonitrile

Info

Publication number
GB741847A
GB741847A GB1743253A GB1743253A GB741847A GB 741847 A GB741847 A GB 741847A GB 1743253 A GB1743253 A GB 1743253A GB 1743253 A GB1743253 A GB 1743253A GB 741847 A GB741847 A GB 741847A
Authority
GB
United Kingdom
Prior art keywords
filaments
per cent
nitric acid
polymer
water
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
GB1743253A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB741847A publication Critical patent/GB741847A/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
    • D01F6/02—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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2975—Tubular or cellular
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer

Landscapes

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

Abstract

Filaments, films and like shaped structures are obtained by wet-spinning a solution in nitric acid of an acrylonitrile polymer or copolymer containing at least 80 per cent of acrylonitrile in the polymer molecule, the coagulating bath consisting essentially of water and nitric acid and the temperature of the coagulating bath being so regulated that the filaments or other structures are of a matt white appearance. The concentration of the nitric acid solution in which the polymer is dissolved to form the spinning solution is preferably 46-68 per cent by weight, and the concentration of nitric acid in the coagulating bath may be 1-40 per cent by weight, the temperature being betweenn 15 DEG and 70 DEG C. The filaments or other products obtained have a fine regular porous structure. They may be subjected to stretching to improve the tensile strength. In an example, polyacrylonitrile of molecular weight about 60,000 and one per cent of urea, based on the weight of the polymer, are dissolved at 20 DEG C. in nitric acid of 59 per cent concentration to form a solution containing about 12 per cent of the polymer. The solution is filtered and stored at 10-15 DEG C. It is then extruded into a coagulating bath consisting of 10 per cent nitric acid, the temperature of the bath being maintained at 35-40 DEG C. The filaments obtained are washed with water and passed through a hot aqueous bath containing phosphoric acid, polyvinyl alcohol and glycerol, in which the main proportion of the absorbed water is removed from the filaments and the swollen condition is removed. The filaments are dried and then stretched while passing between a heated roller and a collecting bobbin. The filaments obtained have a dull lustre and snow-white colour. Instead of polyacrylonitrile, the polymer used may be a copolymer of acrylonitrile and methacrylamide, methacrylonitrile, dimethylaminoethyl methacrylate, vinyl pyridine, or vinylimidazole. If desired, the washed filaments may be treated with hot water at 70 DEG C. or above to remove the greater part of the absorbed water or they may be passed over a surface which is heated to 70-100 DEG C. The stretching or part of the stretching may be carried out in hot water or in water containing a very small proportion of a strong acid. The stretched filaments may be treated with a finishing solution containing a lubricant and a small proportion of a strong acid.
GB1743253A 1952-06-28 1953-06-23 Improved method for producing filaments, films and like shaped structures from polymers and/or copolymers of acrylonitrile Expired GB741847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH741847X 1952-06-28

Publications (1)

Publication Number Publication Date
GB741847A true GB741847A (en) 1955-12-14

Family

ID=4533225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1743253A Expired GB741847A (en) 1952-06-28 1953-06-23 Improved method for producing filaments, films and like shaped structures from polymers and/or copolymers of acrylonitrile

Country Status (5)

Country Link
US (1) US2907096A (en)
BE (1) BE520876A (en)
CH (1) CH308184A (en)
GB (1) GB741847A (en)
NL (2) NL179065B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127298A (en) * 1964-03-31 Method and products thereof
DE1057285B (en) * 1955-08-18 1959-05-14 Dr Paul Halbig Process for the production of threads or fibers from polymers
US3088188A (en) * 1960-01-04 1963-05-07 Monsanto Chemicals Manufacture of shaped objects of acrylonitrile polymer by wet spinning
US3246067A (en) * 1962-05-14 1966-04-12 Du Pont Wet-spinning of aromatic polyester filament of high opacity
US3322611A (en) * 1962-10-19 1967-05-30 Du Pont Porous fibers and processes of preparing same
US3118161A (en) * 1963-03-13 1964-01-21 E B & A C Whiting Company Foamed polypropylene filaments
GB1434055A (en) * 1972-04-28 1976-04-28 Asahi Chemical Ind Hollow fibres of acrylonitrile polymers for use as an ultrafitter and method for producing the same
JPS523343B2 (en) * 1972-04-28 1977-01-27
JPS6017109A (en) * 1983-07-04 1985-01-29 Kanegafuchi Chem Ind Co Ltd Yarn for brush
US5032456A (en) * 1987-09-11 1991-07-16 Newell Operating Company Microcellular synthetic paintbrush bristles
US5786087A (en) * 1995-02-22 1998-07-28 Specialty Filaments, Inc. Honeycomb brush bristles and brush made therefrom

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1427330A (en) * 1922-05-08 1922-08-29 Rousset Jules Manufacture of hollow artificial textile articles
US2268160A (en) * 1939-06-21 1941-12-30 Du Pont Spongy superpolymer
US2385890A (en) * 1943-03-31 1945-10-02 Du Pont Spinning process
US2476293A (en) * 1944-10-03 1949-07-19 American Viscose Corp Artificial fiber
US2531408A (en) * 1946-12-13 1950-11-28 Ind Rayon Corp Interpolymers of acrylonitrile and itaconic acid
US2531409A (en) * 1946-12-13 1950-11-28 Ind Rayon Corp Interiolymers of acrylonitrile and fumarodinitrile
NL138683B (en) * 1947-02-13
US2572931A (en) * 1947-11-01 1951-10-30 American Viscose Corp Cellular products comprising acrylonitrile polymers
US2530962A (en) * 1948-09-24 1950-11-21 Du Pont Formation of shaped articles from acrylonitrile polymers
US2579451A (en) * 1948-12-31 1951-12-18 Du Pont Polymeric materials
US2628945A (en) * 1949-03-24 1953-02-17 Du Pont Process for obtaining cellular polymeric materials

Also Published As

Publication number Publication date
NL105850C (en) 1900-01-01
NL179065B (en)
US2907096A (en) 1959-10-06
BE520876A (en) 1900-01-01
CH308184A (en) 1955-06-30

Similar Documents

Publication Publication Date Title
US2558735A (en) Method of forming dyed shaped articles from acrylonitrile polymerization products
GB741847A (en) Improved method for producing filaments, films and like shaped structures from polymers and/or copolymers of acrylonitrile
US3066006A (en) Method of processing a tow
US2570200A (en) Wet extrusion of acrylonitrile polymers
US2530962A (en) Formation of shaped articles from acrylonitrile polymers
GB663500A (en) Method of making shaped articles of an acrylonitrile polymer
US3180913A (en) Method for producing high shrinkage fibers
US4913870A (en) Process for preparing polyacrylonitrile filaments having high tensile strength and modulus
US2916348A (en) Production of polyacrylonitrile filaments
US2743994A (en) Method of producing shaped articles from polymeric materials
US3170973A (en) Method of producing fibers
US3451140A (en) Production of acrylic synthetic fibers
US2670268A (en) Wet spinning of polyacrylonitrile from salt solutions
US3577499A (en) Method for preparing permanently opaque fibers
GB776678A (en) Improvements relating to shaped polyacrylonitrile-containing articles such as filaments
US3737504A (en) Process for the production of crimped acrylonitrile base yarns with an isopropanol containing bath
US2677590A (en) Removal of porosity in wet-spun acrylonitrile filaments by treatment with heated fluids
GB991496A (en) Polyvinyl chloride textile fibres and method of manufacturing
US2645556A (en) Production of artificial filaments
Takahashi et al. STUDIES ON ACRYLIC FIBER (VII) RELATION BETWEEN COAULATING FORCES OF SPINNING BATHS AND PROPERTIES OF FIBERS
JPS60194111A (en) Monofilament and bristle comprising acrylonitrile homopolymer or copolymer and its production
US3449476A (en) Process of stretching polyacrylonitrile filaments
GB1017855A (en) Improved method and apparatus for the wet-spinning of synthetic polymers
US2726220A (en) Shaped articles of acrylonitrile polymers
US3624196A (en) Stabilization of acrylonitrile fibers to hot-wet creep