US3036026A - Spinning solutions of polyvinyl chloride in mixtures of trichloroethylene and nitromethane - Google Patents

Spinning solutions of polyvinyl chloride in mixtures of trichloroethylene and nitromethane Download PDF

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Publication number
US3036026A
US3036026A US717305A US71730558A US3036026A US 3036026 A US3036026 A US 3036026A US 717305 A US717305 A US 717305A US 71730558 A US71730558 A US 71730558A US 3036026 A US3036026 A US 3036026A
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US
United States
Prior art keywords
nitromethane
trichloroethylene
polyvinyl chloride
parts
mixtures
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 - Lifetime
Application number
US717305A
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English (en)
Inventor
Cernia Enrico
Bonvicini Alberto
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Montedison SpA
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Montedison SpA
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Publication date
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Publication of US3036026A publication Critical patent/US3036026A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
    • C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
    • 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
    • D01F6/08—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 halogenated hydrocarbons
    • D01F6/10—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 halogenated hydrocarbons from polyvinyl chloride or polyvinylidene chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/08—Homopolymers or copolymers of vinylidene chloride

Definitions

  • the present invention relates to solvents for vinyl chloride polymers.
  • Polyvinyl chloride is used for making textile fibers from spinning solutions obtained by dissolving the polymer in suitable solvents or solvent mixtures.
  • the solvent generally used for polyvinyl chloride consists of a mixture of equal portions of carbon disulphide and acetone although this mixture has the disadvantage of being toxic and having a low flash point.
  • solvents can be employed for this purpose. However, they are characterized by either high boiling points, such as dimethyl formamide, dioxane, chlorobenzene, etc., and/or by high costs, such as tetrahydrofurane, dioxane, dimethyl formamide and others.
  • the present invention which eliminates or reduces the aforementioned shortcomings, is based on that fact that mixtures of trichloroethylene and nitromethane at variable ratios, but particularly a mixture containing 80 parts of trichloroethylene and 20 parts of nitromethane, can be profitably used for the so-called dry spinning of polyvinyl chloride.
  • the solvent mixture according to the present invention possesses the principal properties required of a spinning solution solvent of polyvinyl chloride, namely, a low boiling point, low toxicity and low costs.
  • the most suitable mixture for this purpose consists of 80 parts trichloroethylene and 20 parts nitromethane. These two compounds form an azeotropic mixture of constant boiling point at 814 C.
  • Example 1 A trichloroethylene-nitromethane mixture containing 80 parts of trichloroethylene and 20 parts of nitromethane is prepared at room temperature.
  • the solvent is evaporated within the drying column and recovered.
  • the spinning head is kept at 80 C. while the temperature of the driving column is maintained at 120 C.
  • the solution is kept in a jacketed tank, heated to about 80 C. by means of water circulating in the jacket.
  • the spinning head is kept at 77 C.; the spinneret pressure is 31 kg./mm. the temperature of the drying column is maintained at 119 C.
  • the serimetrical characteristics of the yarn are as follows: tensile strength, 2.3 g./den.; elongation, 26%.
  • a useful spinning solution solvent for polyvinylchloride is obtained by mixing 60 parts of nitromethane with 40 parts of trichloroethylene.
  • a spinning solution for vinyl chloride polymers comprising polyvinyl chloride dissolved in a mixture of trichloroethylene and nitromethane., at a ratio ranging from 4 parts trichloroethylene to 1 part nitromethane, to 2 parts trichloroethylene to 3 parts nitromethane.
  • a spinning solution for vinyl chloride polymers comprising polyvinyl chloride dissolved in a mixture consisting of 4 parts trichloroethylene to 1 part nitromethane.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US717305A 1957-02-28 1958-02-25 Spinning solutions of polyvinyl chloride in mixtures of trichloroethylene and nitromethane Expired - Lifetime US3036026A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT825032X 1957-02-28

Publications (1)

Publication Number Publication Date
US3036026A true US3036026A (en) 1962-05-22

Family

ID=11317923

Family Applications (1)

Application Number Title Priority Date Filing Date
US717305A Expired - Lifetime US3036026A (en) 1957-02-28 1958-02-25 Spinning solutions of polyvinyl chloride in mixtures of trichloroethylene and nitromethane

Country Status (5)

Country Link
US (1) US3036026A (hu)
BE (2) BE565209A (hu)
DE (1) DE1100873B (hu)
FR (2) FR1191749A (hu)
GB (2) GB825032A (hu)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT522091B1 (de) * 2019-03-21 2020-08-15 Steger Heinrich Verfahren zum Herstellen eines Zahnersatzes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE630561A (hu) * 1962-04-06 1900-01-01
FR1359178A (fr) * 1963-02-12 1964-04-24 Rhovyl Sa Fibres synthétiques à base de chlorure de polyvinyle
FR2668502B1 (fr) * 1990-10-31 1993-02-19 Rhovyl Fils a base de polychlorure de vinyle reticule par des diisocyanates et leur procede d'obtention.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161766A (en) * 1937-09-15 1939-06-06 Carbide & Carbon Chem Corp Synthetic fiber
US2271581A (en) * 1937-07-21 1942-02-03 Commercial Solvents Corp Synthetic resin coating composition
US2366414A (en) * 1942-05-29 1945-01-02 Udylite Corp Protective coatings for articles
US2472842A (en) * 1942-08-25 1949-06-14 Rhodiaceta Apparatus and method of dry spinning vinyl compounds
GB693792A (en) * 1950-05-23 1953-07-08 Diamond Alkali Co Improvements in or relating to the stabilization of tetrachloroethylene
US2761855A (en) * 1952-05-05 1956-09-04 Chemstrand Corp Polymeric vinyl chloride fiberforming compositions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR994511A (fr) * 1949-07-06 1951-11-19 Rhodiaceta Procédé pour la fabrication de filaments, fils, crins, pailles et articles analogues en polymères du chlorure de vinyle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2271581A (en) * 1937-07-21 1942-02-03 Commercial Solvents Corp Synthetic resin coating composition
US2161766A (en) * 1937-09-15 1939-06-06 Carbide & Carbon Chem Corp Synthetic fiber
US2366414A (en) * 1942-05-29 1945-01-02 Udylite Corp Protective coatings for articles
US2472842A (en) * 1942-08-25 1949-06-14 Rhodiaceta Apparatus and method of dry spinning vinyl compounds
GB693792A (en) * 1950-05-23 1953-07-08 Diamond Alkali Co Improvements in or relating to the stabilization of tetrachloroethylene
US2761855A (en) * 1952-05-05 1956-09-04 Chemstrand Corp Polymeric vinyl chloride fiberforming compositions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT522091B1 (de) * 2019-03-21 2020-08-15 Steger Heinrich Verfahren zum Herstellen eines Zahnersatzes
AT522091A4 (de) * 2019-03-21 2020-08-15 Steger Heinrich Verfahren zum Herstellen eines Zahnersatzes
US11596506B2 (en) 2019-03-21 2023-03-07 Heinrich Steger Method for producing a dental prosthesis

Also Published As

Publication number Publication date
DE1100873B (de) 1961-03-02
FR1204355A (fr) 1960-01-26
FR1191749A (fr) 1959-10-21
BE565209A (hu) 1958-08-27
GB825032A (en) 1959-12-09
GB853726A (en) 1960-11-09
BE566044A (hu) 1958-09-25

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