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
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L27/00—Compositions 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; Compositions of derivatives of such polymers
  • C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L27/04—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
  • C08L27/06—Homopolymers or copolymers of vinyl chloride
• • 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

Definitions

• the present invention relates to liquid compo- 7 Claims. (01. 260-303) sitions of matter, more especially solutions of polymers and/or copolymers of vinyl chloride, M
• the invention relates further to the production of such compositions and to the production of spun fila ments with the aid thereof.
• a primary objectof the present invention is the embodiment of spinning solutions which are free of the prior art defects as hereinbefore set erties, and which can be further conditioned to p produce superior textile fibers.”
• Theseobjects arc 2 achieved in a simple way according to the present invention, which production of good spinning solutions of vinyl chloride polymers and copoly-.- mers from which high quality threads can be spun, by incorporating into the tetrahydrofurane, which is used as solvent, certain quantitles of adipic acid dinitrile. The results thus achieved are surprising because neither tetrahydrofurane nor adipic acid dinitrile by itself gives vinyl chloride polymer solutions which can be satisfactorily spun.
• adipic acid dinitrile becomes perceptible even on addition of about 10% by weight, relative to the weight of the solvent mixture, and increases with increasing quantity of the addition. The effect begins to diminish only when the adipic acid dinitrile becomes the predominant component of the mixture.
• a particularly favorable proportion of the two said compounds in the mixture is a proportion of one part by weight of adipic acid dinitrile to four parts by weight of tetrahydrofurane.
• Such compounds which can be used with tetrahydrofurane as solvents to give vinyl chloride polymer solutions which can be satisfactorily spun according to this invention comprise other nitriles and other chemical compound-s of analogous structure, such for example as:
• the solvent mixture contains from to 50% by weight of the additional solvent.
• the upper limit can be exceeded since even then a certain improvement in solubility is obtained.
• solutions produced according to the invention can be spun without dif culty at room temperature to form artificial threads, artificial bristles and the like, either bythe wet spinning; process or by the dry spinning process.
• Thesolutions are a s erysu t bleior th producti n of m by cast- 113g,
• the solutions preferably contain from about to about by weight of polymer.
• Example 1 100 parts by weight of-polyvinyl chloride are introduced with stirring at 25 C. into a mixture of 100 parts by weight of adipic acid dinitrile and 400 parts by weight of tetrahydroiurane. The mixture is heated slowly to boiling while stirring constantly and, when the polymer has entirely dissolved, is cooled again to room temperature (about 20 C.) The resultant solution can be spun, for example through multiehole stainless steel jets, into water; at .20? C.
• Example 2 200 parts by weight of polyvinyl chloride are introduced with stirring at 20 C. intoaimixture of 150 parts by weight of glutaric acid dinitrile and 600 parts by weight of tetrahydrofurane. The thus-obtained mixture is heated slowly to boiling with constant stirring and, when dissolution of the polymer is complete, is again cooled at 20 C. The resultant solution can be made up into filaments, threads, bristles, fi1ms ,.etc.
• Example 3 150 parts by Weight oi polyvinyl chloride are i t u with tirrin at 20C. into a mixture 4 of 150 parts by weight of succinonitrile and 600 parts by weight of tetrahydrofurane. Th thus obtained mixture is heated slowly to boiling with constant stirring and, when dissolution of the polymer is complete, is again cooled at 20 C. The resultant solution can be made up into filaments, threads, bristles, films, etc.
• Example 4 chloride are introduced into a mixture of parts of vsuccinonitrile and 500 parts by weight of tetrahydrofurane. The mixture is heated, with stirring, untilcomplete solution is achieved, and
• Example 5 100 parts by weight of polyvinyl chloride are introduced with stirring at 20 G. into a mixture of 60 parts by weight of glutaric acid dinitrile and 600 parts of tetrahydroiurane. The resultant mixture is heated to boiling and, when solution is complete, is cooled back to room temperature. The cooled solution may be used for spinning threads.
• Example 6 parts by weight of polyvinyl chloride are introduced into a mixture of 300 parts by weight of adiponitrile and 300 parts by weight of tetrahydrofurane, the mixture is then slowly heated to boiling, while constantly stirring, and after solution is complete, the solution is cooled to room temperature. The cooled and filtered solution may be used in the spinning of threads.
• nitrile succinonitrile, glutaric acid dinitrile, adiponitrile
• succinonitrile glutaric acid dinitrile, adiponitrile
• malonitrile fumaric acid dinitrile, diglycolonitrile, or 1,2-dicyanoe-cyclobutane
• a liquid composition of matter which can be spun to form threads and the like and which can be cast to form films comprising a vinyl chloride polymer as solute in solution in tetrahydrofurane as solvent, said solvent having admixed therewith from about 10% to about 50% by weight of the mixture, of a nitrile which can dissolve polyacrylonitrile completely but which does not by itself give .vinyl chloride polymer solutions. which can be spun.
• a liquid composition of matter which can be spun to form threads and the like and which can be cast to form films comprising a vinyl chloride polymer. as solutein solution in tetrahydroiurane as solvent said solvent having admixed therewith from about 10% to about 50% by weightof the mixture, of glutaric acid die nitrile.
• a liquid composition of matter which can be spun to form threads and the like and which can be cast to form films comprising .a vinyl chloride polymer as solute in solution in tetrahydrofurane as. solvent, said solvent havingadmixed therewith, as an additional solvent, a nitrile, the proportion between additional solvent and tetrahydrofurane in the solvent mixture being about 1 :4, by weight.
• a liquid composition of matter which can be spun to form threads and the like and which can be cast to form films comprising a vinyl chloride polymer as solute in solution in tetrahydrofurane as solvent, said solvent having admixed therewith, as an additional solvent, malonitrile, the proportion between additional solvent and tetrahydrofurane in the solvent mixture being about 1:4 by weight.
• a liquid composition of matter which can be spun to form threads and the like and which can be cast to form films comprising a vinyl chloride polymer as solute in solution in tetra- 20 cinonitrile, the proportion between additional solvent and tetrahydrofurane in the solvent mixture being about 1:4 by weight.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Dispersion Chemistry (AREA)
• Artificial Filaments (AREA)
• Compositions Of Macromolecular Compounds (AREA)

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  • NL NL71803D patent/NL71803C/xx active
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  • NL NL70828D patent/NL70828C/xx active
  • BE BE497653D patent/BE497653A/xx unknown
• 1950
  • 1950-08-12 CH CH287831D patent/CH287831A/de unknown
  • 1950-08-15 GB GB20257/50A patent/GB674792A/en not_active Expired
  • 1950-08-18 FR FR1023581D patent/FR1023581A/fr not_active Expired
• 1951
  • 1951-04-18 US US221715A patent/US2617777A/en not_active Expired - Lifetime
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  • 1951-04-18 US US221714A patent/US2616869A/en not_active Expired - Lifetime

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