US2472842A - Apparatus and method of dry spinning vinyl compounds - Google Patents

Apparatus and method of dry spinning vinyl compounds Download PDF

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Publication number
US2472842A
US2472842A US632270A US63227045A US2472842A US 2472842 A US2472842 A US 2472842A US 632270 A US632270 A US 632270A US 63227045 A US63227045 A US 63227045A US 2472842 A US2472842 A US 2472842A
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United States
Prior art keywords
filaments
spinning
evaporative
chamber
atmosphere
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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 - Lifetime
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US632270A
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English (en)
Inventor
Mouchiroud Antoine Fran Gaston
Trillat Joseph Aime
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.)
Rhodiaceta SA
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Rhodiaceta SA
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Publication date
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    • 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
    • D01D5/04—Dry 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
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process

Definitions

  • the present invention relates to apparatus and process 01' dry-spinning solutions of vinyl polymers, which makes it possible to obtain remarkable results especially with relation to the stability of the spinning .and the regularity in the quality of the products obtained.
  • This process is applicable to the manufacture of filaments, threads, fibres, artificial horse-hairs, straws, slivers, strips, sheets, ribbons, etc. It is characterised in that solely by reason of their movement the products in the course of spinning carry with them their evaporative atmosphere, consequently with'a speed virtually the same as .their own, in a closed circuit where this atmosphere undergoes after emergence of the I said products a cooling which ensures the condensation of the" solvent or solvents which have been evaporated.
  • the process can. be applied to all solutions whichare capable oi a dry-spinningprocess with vinylpolyiners in all desired solvents, for example, to solutions of polyvinyl chloride in solventmixtures containing carbon disulphide and also in;,tetraliydrofurane, glycolformal or other T known-solvents, to solutions of overchlorinated polyvinyl chloride in the same solvents as well a as to the spinning of solutions of copolymers of vinyl chloride and vinyl acetate in various sol-- vents, as for. example, to the spinning of solutions of these products in acetone.
  • the evaporative atmosphere for carrying out the process according to the invention is generally formed by air; this can, however, be wholly or partially replaced by a diiierentg'aseous medium, for example, by carbon dioxide or nitrogen,
  • Example 1 A solution formed of:
  • Acetone 35 is heated to a temperature of C. and extruded through a spinneret containing 24 orifices each 0.08 mm. diameter into an evaporative chamber heated by a jacket or by the circulation of steam to C,
  • the evaporative chamber is connected with a cooling chamber and followed by a heating chamber, the whole of the apparatus being free from constrictions in such a way that the evaporative atmosphere surrounding the filaments is carried along by their movement and practically at the same speed.
  • the apparatus is formed by the tube I, of which the Jackets 2 and 6 are heated by circulation oi steam at 120 C. and the jackets 3 and lcooled by circulation of brine at -17 C. That portion of the tube I designated I constitutes the evaporation chamber or spinning cell; the portions designated l constitute the solvent condenser, and the portion designated l constitutes the reheater.
  • the spinneret is shown by the Figure 6, the filaments iormed are united by a guide roller I. carried away by the roller and then led to an arrangement for giving a coating and finishing dressing which is not shown in the drawing.
  • the evaporative atmosphere remains stationary, but when the filaments are being regularly wound up and drawn along, they set the said atmosphere in motion in the direction 01 their movement and at practically the same speed. After emergence of the filaments, the atmosphere passes into the cooled part of the chamber, thereby causing the solvent mixture to condense and the condensed liquid emerges by the orifice 9 while the evaporative medium continues its circuit and passes into the part of the tube heated by the jacket before returning to the spinneret.
  • the evaporative atmosphere follows its own course and passes into the cooling chamber where it is cooled to 0 C. and then into the heater where it is brought to 90 C. and it then returns to the cell in the neighbourhood of the spinneret.
  • Example 3 By working as in Example 2 and using an acetone solution containing 45% of commercial over-chlorinated polyvinyl chloride containingabout 84% oi chlorine. there is obtained a thread of regular cross-section which can, if desired, be immediately stretched to more than 300%, while'.-maintaining it at a temperature above its softening point.
  • a process of manufacturing products such as filaments and the like which consists in causing a solution of vinyl polymers in a volatile solvent to be extruded into an evaporative atmosphere substantially free from solvent vapor in a closed circuit, and moving the extruded filaments thereby to cause movement or the evaporative atmosphere at substantially the same speed and in the same direction as the filaments. causing the spun filaments to emerge from said evaporative atmosphere, and, after such emergence cooling the evaporative atmospherethereby to ensure condensation oi the solvent vapor contained therein.
  • Apparatus for manufacturing spun products such as filaments and the like which comprises an endless tube forming a closed circuit including an evaporating chamber, a solvent condenser chamber and a heating chamber disposed in successive order and in unconstricted communication with each other, said evaporating chamber having an inlet for admitting material to be spun together with an evaporative atmosphere, means at the end of the evaporating chamber for directing spun filaments from said chamber, means disposed exteriorly of said solvent condenser chamber for cooling the same. and means disposed exteriorly oi said heating chamber for heating the same, the organization being such that movement of the evaporative atmosphere around the entire circuit is induced and controlled entirely by movement of the filaments through the evaporating chamber.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US632270A 1942-08-25 1945-12-01 Apparatus and method of dry spinning vinyl compounds Expired - Lifetime US2472842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR862643X 1942-08-25

Publications (1)

Publication Number Publication Date
US2472842A true US2472842A (en) 1949-06-14

Family

ID=9342912

Family Applications (1)

Application Number Title Priority Date Filing Date
US632270A Expired - Lifetime US2472842A (en) 1942-08-25 1945-12-01 Apparatus and method of dry spinning vinyl compounds

Country Status (7)

Country Link
US (1) US2472842A (da)
BE (2) BE451319A (da)
CH (2) CH237169A (da)
DE (1) DE862643C (da)
FR (2) FR913926A (da)
GB (3) GB605579A (da)
NL (2) NL62378C (da)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788563A (en) * 1952-05-17 1957-04-16 Crylor New filaments of polymers or copolymers having a basis of acrylonitrile and process for their manufacture
US2917775A (en) * 1957-04-30 1959-12-22 Rhovyl Sa Apparatus for the closed circuit dry spinning of artificial or synthetic macromolecular substances
US3036026A (en) * 1957-02-28 1962-05-22 Montedison Spa Spinning solutions of polyvinyl chloride in mixtures of trichloroethylene and nitromethane
US3350489A (en) * 1963-05-03 1967-10-31 Celanese Corp Polyvinylidene cyanide composition and method of producing fibers and films
US3496263A (en) * 1965-07-21 1970-02-17 Asahi Chemical Ind Process for the recovery of n,n-dimethylformamides of n,n - dimethylacetamides from waste gases in the dry spinning of polyacrylonitrile by water contact and condensing
US3502756A (en) * 1969-03-17 1970-03-24 Celanese Corp Process for dry spinning polybenzimidazoles
US3671653A (en) * 1970-10-19 1972-06-20 Du Pont Gas purging of spinning packs
CN114030164A (zh) * 2022-01-11 2022-02-11 山东银宝轮胎集团有限公司 一种橡胶轮胎生产用挤出机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311484A (en) * 1996-03-27 1997-10-01 Viscofil Consolidated Corp Solvent recovery in dope spinning process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885256A (en) * 1927-09-14 1932-11-01 Gull Adolf Ewald Manufacture of artificial silk
US1902922A (en) * 1928-04-07 1933-03-28 Viviani Ettore Apparatus for dry-spinning artificial textile fibers with recovery of the volatile solvents
US1952877A (en) * 1929-11-19 1934-03-27 Ruth Aldo Co Inc Apparatus for making artificial silk
US1972922A (en) * 1928-09-08 1934-09-11 Celanese Corp Process and apparatus for making artificial filaments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885256A (en) * 1927-09-14 1932-11-01 Gull Adolf Ewald Manufacture of artificial silk
US1902922A (en) * 1928-04-07 1933-03-28 Viviani Ettore Apparatus for dry-spinning artificial textile fibers with recovery of the volatile solvents
US1972922A (en) * 1928-09-08 1934-09-11 Celanese Corp Process and apparatus for making artificial filaments
US1952877A (en) * 1929-11-19 1934-03-27 Ruth Aldo Co Inc Apparatus for making artificial silk

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788563A (en) * 1952-05-17 1957-04-16 Crylor New filaments of polymers or copolymers having a basis of acrylonitrile and process for their manufacture
US3036026A (en) * 1957-02-28 1962-05-22 Montedison Spa Spinning solutions of polyvinyl chloride in mixtures of trichloroethylene and nitromethane
US2917775A (en) * 1957-04-30 1959-12-22 Rhovyl Sa Apparatus for the closed circuit dry spinning of artificial or synthetic macromolecular substances
US3350489A (en) * 1963-05-03 1967-10-31 Celanese Corp Polyvinylidene cyanide composition and method of producing fibers and films
US3496263A (en) * 1965-07-21 1970-02-17 Asahi Chemical Ind Process for the recovery of n,n-dimethylformamides of n,n - dimethylacetamides from waste gases in the dry spinning of polyacrylonitrile by water contact and condensing
US3502756A (en) * 1969-03-17 1970-03-24 Celanese Corp Process for dry spinning polybenzimidazoles
US3671653A (en) * 1970-10-19 1972-06-20 Du Pont Gas purging of spinning packs
CN114030164A (zh) * 2022-01-11 2022-02-11 山东银宝轮胎集团有限公司 一种橡胶轮胎生产用挤出机

Also Published As

Publication number Publication date
NL62204C (da)
BE451318A (da)
DE862643C (de) 1953-01-12
GB605612A (en) 1948-07-27
FR913926A (fr) 1946-09-24
FR913927A (fr) 1946-09-24
NL62378C (da)
GB605579A (en) 1948-07-27
CH237169A (fr) 1945-04-15
BE451319A (da)
GB605584A (en) 1948-07-27
CH237170A (fr) 1945-04-15

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