DE1007945B - Process for the production of spinning solutions from polyacrylonitrile or its copolymers - Google Patents
Process for the production of spinning solutions from polyacrylonitrile or its copolymersInfo
- Publication number
- DE1007945B DE1007945B DEV9168A DEV0009168A DE1007945B DE 1007945 B DE1007945 B DE 1007945B DE V9168 A DEV9168 A DE V9168A DE V0009168 A DEV0009168 A DE V0009168A DE 1007945 B DE1007945 B DE 1007945B
- Authority
- DE
- Germany
- Prior art keywords
- polyacrylonitrile
- spinning
- glycolic acid
- strength
- elongation
- 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.)
- Pending
Links
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
- D01F6/18—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
-
- 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
- C08J2333/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/18—Homopolymers or copolymers of nitriles
- C08J2333/20—Homopolymers or copolymers of acrylonitrile
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Dispersion Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft ein Verfahren zur Herstellung von Spinnlösungen aus Polyacrylnitril bzw. seinen Mischpolymerisaten, wobei als Lösungsmittel ein Gemisch, bestehend aus Glycolsäurenitril und Äthylerichlorhydrin, Verwendung findet.The invention relates to a method of manufacture of spinning solutions made of polyacrylonitrile or its copolymers, the solvent being a mixture consisting of glycolic acid nitrile and ethylene dichlorohydrin is used.
Es ist bekannt, Polyacrylnitril bzw. seine Mischpolymerisate in z.B. Glycolsäurenitril aufzulösen und diese Lösung zu verspinnen. In der deutschen Patentschrift 891 018 wird z. B. die Verwendung von Oxynitrüen, insbesondere von Glycolsäurenitril, in Mischung von aliphatischen Nitroverbindungen, insbesondere Nitromethan, als Lösungsmittel für Polyacrylnitril und deren Mischpolymerisate beschrieben. Es hat sich aber gezeigt, daß die Herstellung derartiger Spinnlösungen nicht zu den gewünschten Ergebnissen bezüglich ihrer einwandfreien Verspinnbarkeit führt. Es wird bei diesen Spinnlösungen oft eine gewisse Gallertbildung beobachtet, welche ein einwandfreies Verspinnen beeinträchtigt, so daß die Qualität der Fäden darunter leidet. Weiterhin tritt noch ein anderer, unangenehmer Nachteil in Erscheinung. Glycolsäurenitril neigt nämlich bei höheren Temperaturen zur Zersetzung, was wiederum Spinnstörungen zur Folge hat. Auch der Zusatz von z. B. Nitromethan oder eines Diesters einer aliphatischen Verbindung zu Glycolsäurenitril bringt gleichfalls keine wesentliche Verbesserung der Lösungseigenschaften bezüglich ihrer Stabilität und ihrer Neigung zur Gallertbildung. Wird Glycolsäurenitril allein als Lösungsmittel für Polyacrylnitril verwendet, so treten beim nachfolgenden Naßspinnverfahren erneut Schwierigkeiten auf. Es kommt hierbei zu einer ungünstigen und ungenügenden Fadenausbildung.It is known that polyacrylonitrile or its copolymers can be dissolved in, for example, glycolic acid nitrile to spin this solution. In the German patent specification 891 018, for. B. the use of oxynitrines, in particular of glycolic acid nitrile, in a mixture of aliphatic nitro compounds, in particular Nitromethane, described as a solvent for polyacrylonitrile and their copolymers. However, it has been shown that the production of such spinning solutions does not lead to the desired results leads with regard to their perfect spinnability. It is often the case with these spinning solutions observed a certain jelly formation, which impairs proper spinning, so that the The quality of the threads suffers. Another unpleasant disadvantage also appears. Glycolic acid nitrile tends to decompose at higher temperatures, which in turn causes spinning problems has the consequence. The addition of z. B. nitromethane or a diester of an aliphatic The connection to glycolic acid nitrile likewise does not bring about any significant improvement in the solution properties regarding their stability and their tendency to gelatinize. Used as glycolic acid nitrile alone Solvents used for polyacrylonitrile occur again in the subsequent wet spinning process Difficulties arise. This leads to an unfavorable and insufficient thread formation.
Es wurde gefunden, daß man zu einwandfreien Spinnlösungen aus Polyacrylnitril bzw. seinen Mischpolymerisaten gelangt, die weder zu Gallertbildung neigen noch Zersetzungsersdheinungen aufweisen und aus welchen hochwertige Fäden ersponnen werden können, wenn man zu ihrer Herstellung ein ganz bestimmtes Lösungsmittelgemisch, !»stellend aus Glycolsäurenitril und Äthylenchlorhydrin. verwendet. Das Mischungsverhältnis beider Komponenten kann sich in folgenden Grenzen 1>ewegen: Glycolsäurenitril 60 bis 95 Gewichtsprozent und Äthylenchlorhydrin 40 bis 5 Gewichtsprozent. Die beste Wirkung des Lösungsmi'ttelgemisches wird indessen dann erreicht, wenn man vorzugsweise 25 bis 35 Gewichtsprozent Äthylenchlorhydrin verwendet. Bei diesem verhältnismäßig höhen Anteil des Äthylenchlorhydrin in dem Lösungsmittelgemisch wird das Glycolsäurenitril gegen Zersetzungen völlig stabilisiert. Aber auch geringere Anteile an Äthylenchlorhydrin bis etwa 5 Gewichtsprozent bewirken eine ausreichende Stabilisierung. Das Verspinnen von Polyacrylnitril, welches Verfahren zur HerstellungIt has been found that perfect spinning solutions made of polyacrylonitrile or its copolymers can be obtained that neither tend to gelatinize nor show signs of decomposition and Which high-quality threads can be spun if you have a very specific thread to make them Solvent mixture, made up of glycolic acid nitrile and ethylene chlorohydrin. used. The mixing ratio of the two components can vary within the following limits: glycolic acid nitrile 60 up to 95 percent by weight and ethylene chlorohydrin 40 to 5 percent by weight. The best effect of the Solvent mixture is achieved, however, if you preferably 25 to 35 percent by weight Ethylene chlorohydrin is used. With this relatively high proportion of ethylene chlorohydrin in the In a solvent mixture, the glycolic acid nitrile is completely stabilized against decomposition. But also lesser ones Ethylene chlorohydrin proportions of up to about 5 percent by weight bring about adequate stabilization. The spinning of polyacrylonitrile, which method of production
von Spinnlösungen aus Polyacrylnitrilof polyacrylonitrile spinning solutions
bzw. seinen Mischpolymerisatenor its copolymers
Anmelder:Applicant:
Vereinigte Glanzstoff-Fabriken A. G.,
Wuppertal-Elberfeld, Am LaurentiusplatzUnited Glanzstoff-Fabriken AG,
Wuppertal-Elberfeld, Am Laurentiusplatz
Dr. Ernst Pirot, Erlenbach/M.,
ist als Erfinder genannt wordenDr. Ernst Pirot, Erlenbach / M.,
has been named as the inventor
in diesem Lösungsmittelgemisch gelöst ist, verläuft dann völlig einwandfrei, ohne daß eine Gallertbildung zu beobachten wäre. Weiterhin werden die Fäden, die sowohl nach dem Trockenspinnverfahren wie auch nach dem Naß spinnverfahren aufgearbeitet werden können, besonders gut ausgebildet. Auch wird eine besonders gute Farbstabilität erreicht, wenn man den Lösungsmittelgemischen reduzierende Substanzen, wie z. B. Schwefeldioxyd oder Formaldehyd, hinzufügt. Die Lösung und die daraus versponnenen Fäden zeichnen sich dann durch eine sehr helle Farbe aus, welche auch nach längerem Erhitzen nicht nachdunkelt. An sich ist die Verwendung von Schwefeldioxyd als reduzierende Substanz bei der Herstellung eimer Spinnlösung durch das britische Patent 600 249 bekanntgeworden. Nach diesem Verfahren läßt man das Scbwefeldioxyd jedoch auf eine Suspension einwirken, welche aus dem Polymerisat und einem Lösungsmittel, z. B. Dimethylformamid, bei Raumtemperatur gebildet wurde.is dissolved in this solvent mixture, then runs perfectly without jelly formation would be observed. Furthermore, the threads, both after the dry spinning process as well be worked up by the wet spinning process can, particularly well trained. Particularly good color stability is also achieved if the Mixtures of solvents reducing substances, such as. B. sulfur dioxide or formaldehyde adds. The solution and the threads spun from it are then characterized by a very light color, which does not darken even after prolonged heating. In itself is the use of sulfur dioxide as a reducing substance in the manufacture of buckets of dope by British patent 600 249 known. According to this procedure, however, the sulfur dioxide is allowed to act on a suspension, which from the polymer and a solvent, e.g. B. dimethylformamide, at room temperature was formed.
1,8 kg Polyacrylnitril (K-Wert etwa 95) und 8,2 kg eines Lösungsmittelgemisches, welches aus 70 Gewichtsprozent Glycolsäurenitril und 30 Gewichtsprozent Äthylenchlorhydrin gebildet wurde, werden bei Temperaturen von 15 bis 20° unter gleichzeitiger Entlüftung miteinander vermischt. Die vollständig entlüftete Mischung wird unter stetigem Rühren allmählich auf 110 bis 115° aufgeheizt und auf dieser Temperatur etwa 1 Stunde gehalten. Es bildet sich eine sehr helle Spinnlösung, die filtriert und nach dem Trockenspinnverfahren versponnen wird. Die entstehenden Fäden besitzen nach ihrer Verstreckung1.8 kg of polyacrylonitrile (K value about 95) and 8.2 kg of a solvent mixture, which consists of 70 percent by weight Glycolic acid nitrile and 30 weight percent ethylene chlorohydrin was formed mixed with one another at temperatures of 15 to 20 ° with simultaneous venting. The completely deaerated mixture is gradually heated to 110 to 115 ° with constant stirring and on this Maintained temperature for about 1 hour. A very light-colored spinning solution forms, which is filtered and followed by is spun using the dry spinning process. The resulting threads have after their drawing
709 508/470709 508/470
Claims (1)
bad von 4 m Länge, welches mit 80 % technischemsTch adjusts. The spinning solution is now obtained in a fall-dyeable thread with a soft hand,
bath of 4 m length, which with 80% technical
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL90746D NL90746C (en) | 1955-07-08 | ||
NL207832D NL207832A (en) | 1955-07-08 | ||
BE548806D BE548806A (en) | 1955-07-08 | ||
DEV9168A DE1007945B (en) | 1955-07-08 | 1955-07-08 | Process for the production of spinning solutions from polyacrylonitrile or its copolymers |
FR1151623D FR1151623A (en) | 1955-07-08 | 1956-06-15 | Process for the preparation of spinning solutions starting from polyacrylonitrile or its copolymerisates |
CH345110D CH345110A (en) | 1955-07-08 | 1956-06-27 | Process for the production of spinning solutions from polyacrylonitrile or its copolymers |
GB20719/56A GB794396A (en) | 1955-07-08 | 1956-07-04 | Process for the production of spinning solutions from polyacrylonitrile and acrylonitrile copolymers |
US596152A US3009894A (en) | 1955-07-08 | 1956-07-06 | Spinning solution comprising acrylonitrile polymer in glycolic acid nitrile and ethylene chlorohydrin, and process for making |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV9168A DE1007945B (en) | 1955-07-08 | 1955-07-08 | Process for the production of spinning solutions from polyacrylonitrile or its copolymers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1007945B true DE1007945B (en) | 1957-05-09 |
Family
ID=7572564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV9168A Pending DE1007945B (en) | 1955-07-08 | 1955-07-08 | Process for the production of spinning solutions from polyacrylonitrile or its copolymers |
Country Status (7)
Country | Link |
---|---|
US (1) | US3009894A (en) |
BE (1) | BE548806A (en) |
CH (1) | CH345110A (en) |
DE (1) | DE1007945B (en) |
FR (1) | FR1151623A (en) |
GB (1) | GB794396A (en) |
NL (2) | NL90746C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1282932B (en) * | 1962-08-07 | 1968-11-14 | Bayer Ag | Process for the production of solutions from acrylonitrile polymers in organic solvents |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE891018C (en) * | 1949-12-18 | 1953-09-24 | Roehm & Haas G M B H | Solvent for polyacrylonitriles and their copolymers with predominantly acrylonitrile content |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE850226C (en) * | 1948-10-02 | 1953-05-04 | Roehm & Haas G M B H | Solvent and plasticizer for polymers and copolymers of acrylonitrile |
US2843558A (en) * | 1953-06-08 | 1958-07-15 | Asahi Chemical Ind | Compositions comprising acrylonitrile polymers and diamides |
-
0
- BE BE548806D patent/BE548806A/xx unknown
- NL NL207832D patent/NL207832A/xx unknown
- NL NL90746D patent/NL90746C/xx active
-
1955
- 1955-07-08 DE DEV9168A patent/DE1007945B/en active Pending
-
1956
- 1956-06-15 FR FR1151623D patent/FR1151623A/en not_active Expired
- 1956-06-27 CH CH345110D patent/CH345110A/en unknown
- 1956-07-04 GB GB20719/56A patent/GB794396A/en not_active Expired
- 1956-07-06 US US596152A patent/US3009894A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE891018C (en) * | 1949-12-18 | 1953-09-24 | Roehm & Haas G M B H | Solvent for polyacrylonitriles and their copolymers with predominantly acrylonitrile content |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1282932B (en) * | 1962-08-07 | 1968-11-14 | Bayer Ag | Process for the production of solutions from acrylonitrile polymers in organic solvents |
Also Published As
Publication number | Publication date |
---|---|
FR1151623A (en) | 1958-02-03 |
GB794396A (en) | 1958-04-30 |
NL90746C (en) | |
US3009894A (en) | 1961-11-21 |
NL207832A (en) | |
CH345110A (en) | 1960-03-15 |
BE548806A (en) |
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