EP1040214B1 - Hilfsmittel für die herstellung von cellulosefasern - Google Patents
Hilfsmittel für die herstellung von cellulosefasern Download PDFInfo
- Publication number
- EP1040214B1 EP1040214B1 EP98963528A EP98963528A EP1040214B1 EP 1040214 B1 EP1040214 B1 EP 1040214B1 EP 98963528 A EP98963528 A EP 98963528A EP 98963528 A EP98963528 A EP 98963528A EP 1040214 B1 EP1040214 B1 EP 1040214B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cellulose
- formula
- xanthate
- compounds
- solution
- 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
Links
- 229920003043 Cellulose fiber Polymers 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000012752 auxiliary agent Substances 0.000 title claims 2
- 238000000034 method Methods 0.000 claims abstract description 26
- 229920002678 cellulose Polymers 0.000 claims abstract description 25
- 239000001913 cellulose Substances 0.000 claims abstract description 25
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000012991 xanthate Substances 0.000 claims abstract description 21
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003513 alkali Substances 0.000 claims abstract description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 9
- 230000015271 coagulation Effects 0.000 claims abstract description 7
- 238000005345 coagulation Methods 0.000 claims abstract description 7
- 239000001257 hydrogen Substances 0.000 claims abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 3
- 125000000217 alkyl group Chemical group 0.000 claims abstract 3
- 150000002118 epoxides Chemical class 0.000 claims abstract 2
- 239000003607 modifier Substances 0.000 claims description 20
- 229920000297 Rayon Polymers 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 15
- 238000007142 ring opening reaction Methods 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 8
- 238000009987 spinning Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000269 nucleophilic effect Effects 0.000 claims description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 125000004417 unsaturated alkyl group Chemical group 0.000 claims 1
- -1 amine compound Chemical class 0.000 abstract description 6
- 125000001931 aliphatic group Chemical group 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 125000001424 substituent group Chemical group 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 16
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- 238000001556 precipitation Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 7
- 150000001412 amines Chemical class 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 150000002924 oxiranes Chemical class 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000004703 alkoxides Chemical class 0.000 description 2
- 150000001348 alkyl chlorides Chemical class 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000005070 ripening Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- IWSZDQRGNFLMJS-UHFFFAOYSA-N 2-(dibutylamino)ethanol Chemical compound CCCCN(CCO)CCCC IWSZDQRGNFLMJS-UHFFFAOYSA-N 0.000 description 1
- MIJDSYMOBYNHOT-UHFFFAOYSA-N 2-(ethylamino)ethanol Chemical compound CCNCCO MIJDSYMOBYNHOT-UHFFFAOYSA-N 0.000 description 1
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000006959 Williamson synthesis reaction Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 150000002023 dithiocarboxylic acids Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001223 polyethylene glycol Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003152 propanolamines Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
-
- 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
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
Definitions
- the present application relates to the use of end group capped alkoxylated amines as auxiliaries in the production of cellulose fibers after Viscose process and a process for the production of cellulose fibers according to the Process viscose.
- the large-scale production of cellulose fibers mainly takes place after Viscose.
- the pulp is first in cellulose exanthate, which so-called viscose, transferred and pressed into an acidic precipitation bath.
- the acidic solution By the Contact with the acidic solution, the xanthate is precipitated and saponified the cellulose is released in the form of a filament.
- modifiers e.g. B. quaternary ammonium bases, N-substituted dithiocarboxylic acids, polyethylene glycols and aliphatic monoamines and especially oxyethylated amines and amides or their derivatives.
- DE 28 37 766 describes, for example, alkoxylation products of a polyhydric alcohol and / or a dibasic amine as modifiers.
- DE 29 21 314 describes a process for producing crimped cellulose fibers, the modifiers used being, inter alia, ethoxylated fatty acid amines having 8 to 20 carbon atoms.
- alkylamine glycol ethers are widely used as modifiers in the production of viscose.
- alkoxylated amines preferably alkyl chlorides
- alkyl halides preferably alkyl chlorides
- the present application relates to the use of reaction products of the nucleophilic ring opening of epoxides of the formula (I) in which R 1 represents a linear or branched aliphatic alkyl radical having 1 to 22 carbon atoms with compounds of the formula (II) in which R 2 and R 3 independently of one another represent a radical (C n H 2n -O) m -H or a linear or branched, saturated or unsaturated alkyl radical having 1 to 22 C atoms or hydrogen, n is 2 or 3 has and m is a number between 1 and 20, as an aid in the production of cellulose fibers by the viscose process.
- R 1 represents a linear or branched aliphatic alkyl radical having 1 to 22 carbon atoms
- R 2 and R 3 independently of one another represent a radical (C n H 2n -O) m -H or a linear or branched, saturated or unsaturated alkyl radical having 1 to 22 C atoms or hydrogen
- the ring opening products are known compounds, which according to the usual Methods of organic chemistry can be synthesized.
- the synthesis of such Connections are usually carried out by reacting the epoxides of the formula (I) with Compounds of formula (II) in the presence of suitable, preferably alkaline Catalysts, e.g. Potassium or lithium hydroxide. Potassium hydroxide is preferred used.
- suitable, preferably alkaline Catalysts e.g. Potassium or lithium hydroxide.
- Potassium hydroxide is preferred used.
- By a nucleophilic attack of the oxygen atom of the compounds of the Formula (II) on one of the epoxy carbon atoms opens the ring and it forms ⁇ -hydroxy ether. Details of this reaction can be found, for example, in the article by W. Stein in fats, soaps, paints, No. 2, 84th year 1992, page 51 and the literature cited there.
- the ring opening reaction takes place preferably under anhydrous conditions Normal pressure instead.
- reaction temperatures between 100 and 180 ° C. It is preferred that the reaction in the Temperature range from 140 to 160 ° C to perform.
- the epoxides of the formula (I) are known compounds which are prepared by epoxidizing alpha-olefins which are obtained, for example, by the shop process. Typical examples are the epoxides of Octen-1, Decen-1, Dodecen-1, Tetradecen-1, Octadecen-1 or Octadecen-9. Epoxides of the formula (I) are preferred. in which R 1 is a linear aliphatic alkyl radical having 8 to 14 carbon atoms.
- the compounds of the formula (II) are also known. It is ethanol or propanolamines and their alkoxylation products. These can, for example by alkoxylation of mono-, di- or trialkanolamines by customary methods be preserved. As alkoxides, ethylene oxide (EO) or propylene oxide (PO) or Mixtures of these alkoxides can be used. Such compounds are preferred of the formula (II) in which m is a number between 10 and 20 and preferably 12 to 18 means. Those compounds are particularly preferred which only Contain ethylene oxide groups. Such ring opening products are preferred used in the preparation of which, if appropriate, ethoxylated trialkanolamines, preferably triethanolamine can be used.
- connection can be alkoxylated by other alkanolamines, e.g. 2- (dibutylamino) ethanol, 2- (diethylamino) ethanol, 2- (methylamino) ethanol, 2-ethylaminoethanol, 2-dimethylaminoethanol, Ethanolamine or diethanolamine.
- alkanolamines e.g. 2- (dibutylamino) ethanol, 2- (diethylamino) ethanol, 2- (methylamino) ethanol, 2-ethylaminoethanol, 2-dimethylaminoethanol, Ethanolamine or diethanolamine.
- the molar ratio between the epoxy (I) and the compound of formula (II) at the ring opening reaction is preferably between 1: 2 and 1: 1 Ring opening products typically have hydroxide numbers of at least 160, preferably from at least 180.
- the ring opening products are manufactured without the addition of chlorine chemicals. Also there is no salt load when opening the ring, e.g. at Williamson's Ether synthesis occurs.
- the products obtained by ring opening can be used as modifiers of both Viscose solution are added, as well as the acidic precipitation bath into which the viscose is pressed.
- the ring opening products are preferably in quantities between 1 and 5% by weight, based on those contained in the viscose or in the precipitation bath Cellulose added.
- ring opening products as modifiers in the Viscose solution makes spinning easier, one continues to observe one reduced clogging of the spinnerets.
- the ring opening products as Modifiers used in the acidic precipitation bath are observed to be more uniform Decomposition of xanthate cellulose and slowing of thread formation. This leads to threads with higher mechanical resilience. At the same time, the failures prevents inorganic salts.
- the modifiers of the invention are suitable for use in all of them Processes known to those skilled in the art for producing cellulose fibers according to the Viscose.
- viscose process is used industrially Process of cellulose fiber production understood, as described for example in Z.A. Rogowin, chemical fibers, Georg Thieme Verlag, Stuttgart, 1982, pages 67 to 152 is described.
- step a) Cellulose, for example in the form of pressed sheets, rolled goods, flakes or squeezed, undried pulp, reacted with an alkali, whereby in known form first the alkali cellulose.
- alkali any can be used as lyes basic systems are used, especially aqueous alkali, such as potassium or Sodium hydroxide solution.
- concentration usually amounts to 15 to 30% by weight Base, based on the total weight of the lye.
- Process step b) follows, which comprises the individual steps of pre-ripening, xanthation with carbon disulphide, dissolving the xanthate in alkali metal solution, ripening and deaerating and leading to the spinnable viscose solution. Details of this process are described, for example, in the above-mentioned publication by ZA Rogowin, pages 97 to 119.
- the modifiers described above are added to the xanthate solution during the dissolution of the cellulose xanthate in alkali metal hydroxide solution and / or during the maturation.
- the amount of the modifiers is preferably between 1 and 5% by weight, based on the cellulose contained in the solution.
- the ripened xanthate solution, process step c), is then spun by pressing the solution, which was previously filtered and tempered, through a Spinneret with essentially round nozzle holes in the precipitation bath. Examples of this are spinnerets with 250 to 30,000 holes and a single diameter one Hole from 35 to 100 ⁇ m.
- the xanthate coagulates into threads and becomes using a protonic acid to regenerate cellulose, salt and carbon disulphide hydrolyzed.
- the carbon disulfide is returned to the process.
- Protonic acid can be organic acids such as acetic acid or mineral acids such as salt, nitrate or sulfuric acid can be used. It is preferred to concentrate Sulfuric acid used.
- the precipitation bath contains certain acids in addition to the acid Metal salts that can slow down xanthate coagulation.
- examples for such salts are magnesium, aluminum, iron and in particular zinc salts.
- the Salts are usually used as chlorides, nitrates or sulfates.
- the concentration of the salts is usually between 2 to 10 g / l.
- the precipitation bath is described as above Modifiers added, preferably in amounts of 1 to 5% by weight, based on the contained cellulose.
- the precipitation bath can be used in addition to those described above Modifiers, the acid and the metal salts are still further known to the person skilled in the art Contain aids, e.g. Formaldehyde or other modifiers.
- Contain aids e.g. Formaldehyde or other modifiers.
- the so won Cellulose filaments are then spun, cleaned and in a manner known per se further treated.
- the inventive method is characterized in that at least one of the two process steps b) or c) modifiers of the type described above be used.
- the method is carried out so that the Modifiers only of the viscose solution before spinning, i.e. in step b), be added.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
Description
aliphatische Monoamine und insbesondere oxethylierte Amine und Amide oder deren Derivate. Die DE 28 37 766 beschreibt beispielsweise Alkoxylierungsprodukte eines mehrwertigen Alkohols und/oder eines zweibasischen Amins als Modifikatoren. Die DE 29 21 314 beschreibt ein Verfahren zur Herstellung gekräuselter Cellulosefasern, wobei als Modifikatoren unter anderem auch oxethylierte Fettsäureamine mit 8 bis 20 Kohlenstoffatomen eingesetzt werden. Weiterhin werden vielfach Alkylaminglykolether in der Viskoseproduktion als Modifikatoren verwendet. Diese Verbindungen werden durch Umsetzung von alkoxylierten Aminen mit Alkylhalogeniden, vorzugsweise Alkylchloriden, im Sinne einer Ethersynthese nach Williamson, hergestellt. Dabei werden aber zwangsläufig erhebliche Mengen an Salzen frei, deren Entsorgung teuer ist und Umweltprobleme hervorruft. Zum Teil verbleiben auch Reste der Alkylchloride im Reaktionsprodukt, die gegebenenfalls durch ein aufwendiges und teures Reinigungsverfahren entfernt werden müssen.
Im erfindungsgemäßen Verfahren werden die oben beschriebenen Modifikatoren der Xanthogenatlösung während des Lösens des Cellulosexanthogenats in Alkalilauge und/oder während der Nachreife zugesetzt. Die Menge der Modifikatoren liegt dabei vorzugsweise zwischen 1 und 5 Gew.-%, bezogen auf die in der Lösung enthaltene Cellulose.
Claims (7)
- Verwendung von Reaktionsprodukten der nucelophilen Ringöffnung von Epoxiden der Formel (I) in der R1 für einen linearen oder verzweigten aliphatischen Alkylrest mit 1 bis 22 C-Atomen steht mit Verbindungen der Formel (II) in der R2 und R3 unabhängig voneinander für einen Rest (CnH2n-O)m-H oder einen linearen oder verzweigten gesättigten oder ungesättigten Alkylrest mit 1 bis 22 C-Atomen oder Wasserstoff stehen, n den Wert 2 oder 3 hat und m eine Zahl zwischen 1 und 20 bedeutet,
als Hilfsmittel bei der Herstellung von Cellulosefasern nach dem Viskoseverfahren. - Verwendung nach Anpruch 1, dadurch gekennzeichnet, daß in den Verbindungen der Formel (II) R2 und R3 für Reste der Formel (CnH2n-O)m-H stehen.
- Verwendung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in den Verbindungen der Formel (II) n den Wert 2 hat.
- Verwendung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in den Verbindungen der Formel (II) m eine Zahl zwischen 12 und 18 bedeutet.
- Verwendung nach einem der Ansprüche 1 bis 4 dadurch gekennzeichnet, daß in der Formel (I) der Rest R1 für einen linearen Alkylrest mit 8 bis 14 C-Atomen steht.
- Verwendung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Reaktionsprodukte Hydroxidzahlen (OHZ) von mindestens 160 aufweisen.
- Verfahren zur Herstellung von Cellulosefasern nach dem Viskoseverfahren, umfassend die Schrittedadurch gekennzeichnet, daß man die Reaktionsprodukte gemäß Anspruch 1 der Xanthogenatlösung und/oder dem Fällbad in wirksamen Mengen als Modifikatoren zusetzt.a) Bildung von Alkalicellulose durch Umsetzung von Zellstoff mit Alkalilaugeb) Umsetzung der Alkalicellulose mit Schwefelkohlenstoff und einer Lauge unter Ausbildung einer Xanthogenatlösung undc) Verspinnen der Xanthogenatlösung durch Spinndüsen in ein wäßriges Fällbad enthaltend eine Protonensäure sowie Metallsalze, wobei sich unter Zersetzung des Xanthogenats ein Cellulosefaden bildet,
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19754314A DE19754314A1 (de) | 1997-12-08 | 1997-12-08 | Hilfsmittel für die Herstellung von Cellulosefasern |
| DE19754314 | 1997-12-08 | ||
| PCT/EP1998/007700 WO1999029937A1 (de) | 1997-12-08 | 1998-11-28 | Hilfsmittel für die herstellung von cellulosefasern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1040214A1 EP1040214A1 (de) | 2000-10-04 |
| EP1040214B1 true EP1040214B1 (de) | 2003-03-05 |
Family
ID=7851067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98963528A Expired - Lifetime EP1040214B1 (de) | 1997-12-08 | 1998-11-28 | Hilfsmittel für die herstellung von cellulosefasern |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6475419B1 (de) |
| EP (1) | EP1040214B1 (de) |
| AT (1) | ATE233837T1 (de) |
| DE (1) | DE19754314A1 (de) |
| WO (1) | WO1999029937A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7247606B2 (en) * | 2001-11-05 | 2007-07-24 | Cognis Corporation | Branched reaction products |
| JP5725863B2 (ja) * | 2007-11-09 | 2015-05-27 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | アルコキシル化されたポリアルカノールアミン |
| CA2702824C (en) * | 2007-11-09 | 2013-04-30 | The Procter & Gamble Company | Cleaning compositions with alkoxylated polyalkanolamines |
| EP2832772A4 (de) * | 2012-03-28 | 2015-09-02 | Dainippon Ink & Chemicals | Verfahren zur herstellung von cellulosenanofasern, cellulosenanofasern, masterbatch und harzzusammensetzung |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE547320A (de) * | 1955-06-13 | |||
| BE567063A (de) * | 1957-06-21 | |||
| NL234167A (de) * | 1958-01-04 | 1900-01-01 | ||
| NL278295A (de) * | 1960-02-17 | |||
| DE1163489B (de) * | 1960-02-17 | 1964-02-20 | Glanzstoff Courtaulds Gmbh | Verfahren zur Herstellung von Faeden, Fasern oder Folien aus regenerierter Cellulosedurch Verspinnen von Viskose |
| CH411221A (de) * | 1960-12-23 | 1966-04-15 | Geigy Ag J R | Verfahren zur Herstellung spinngefärbter, regenerierter Cellulosefasern |
| NL293298A (de) * | 1962-05-28 | |||
| NL284888A (de) | 1962-10-30 | |||
| JPS5144143B2 (de) * | 1972-06-27 | 1976-11-26 | ||
| CH611346A5 (de) * | 1977-09-02 | 1979-05-31 | Ciba Geigy Ag | |
| IT7823984A0 (it) * | 1978-05-30 | 1978-05-30 | Snia Viscosa | Procedimento per la produzione difibre di cellulosa rigenerata arricciate ed a alto modulo a umido. |
| DE3614834A1 (de) * | 1986-05-02 | 1987-11-05 | Henkel Kgaa | Verwendung von aminogruppen enthaltenden polyglykolethern als schaumdrueckende zusaetze in schaumarmen reinigungsmitteln |
-
1997
- 1997-12-08 DE DE19754314A patent/DE19754314A1/de not_active Withdrawn
-
1998
- 1998-11-28 WO PCT/EP1998/007700 patent/WO1999029937A1/de not_active Ceased
- 1998-11-28 EP EP98963528A patent/EP1040214B1/de not_active Expired - Lifetime
- 1998-11-28 US US09/581,031 patent/US6475419B1/en not_active Expired - Fee Related
- 1998-11-28 AT AT98963528T patent/ATE233837T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE19754314A1 (de) | 1999-06-10 |
| EP1040214A1 (de) | 2000-10-04 |
| ATE233837T1 (de) | 2003-03-15 |
| WO1999029937A1 (de) | 1999-06-17 |
| US6475419B1 (en) | 2002-11-05 |
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