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    • 1. 发明申请
    • PROCESS FOR PURIFYING AQUEOUS SOLUTIONS OF TERTIARY AMINO OXIDES
    • 清理方法水溶液中氧化叔胺
    • WO1995023885A1
    • 1995-09-08
    • PCT/AT1995000022
    • 1995-02-01
    • LENZING AKTIENGESELLSCHAFTMÜLLEDER, EduardFIRGO, Heinrich
    • LENZING AKTIENGESELLSCHAFT
    • D01F13/02
    • C07C291/04C08B1/003C08J3/096C08J2301/00C08L1/02D01F2/00
    • The invention relates to a process for producing cellulose shaped bodies, said process comprising the following steps: (A) dissolving cellulose in an aqueous solution of a tertiary amino oxide to form a cellulose solution which can be shaped; (B) shaping the cellulose solution and guiding the shaped cellulose solution into an aqueous precipitation bath in which the cellulose is precipitated, whereby a shaped body and a used precipitation bath are formed; (C) purifying the used precipitation bath by bringing it into contact with an ion exchanger, a purified, aqueous amino oxide solution being formed which is possibly dephlegmated and is then used in step (A) again for dissolving cellulose. The invention is characterized in that an ion exchanger is used whose carrier is cellulose to which groups suitable for ion exchange are attached.
    • 本发明涉及一种用于生产纤维素成型体的方法,该方法包括以下步骤:(A)将纤维素溶解在氧化叔胺的水溶液,以产生一种可模塑纤维素溶液,(B)模制所述纤维素溶液和进行模制纤维素溶液成 水沉淀浴其中纤维素沉淀,由此模制体和废沉淀浴,(C)纯化由沉淀浴的用过的沉淀浴被带入与一个离子交换器,其特征在于,纯化的含水氧化胺溶液形成其接触, 任选地之后,在步骤(a)浓度重新用来溶解纤维素,其特征在于,离子交换剂,其载体是纤维素,其能够附接的离子交换基团。
    • 4. 发明申请
    • CELLULOSE FIBRE
    • 纤维素纤维
    • WO1997007266A1
    • 1997-02-27
    • PCT/AT1996000137
    • 1996-07-30
    • LENZING AKTIENGESELLSCHAFTFIRGO, HeinrichSEIDL, SigridBARTSCH, PeterKÖLL, BerndtMÜLLEDER, Eduard
    • LENZING AKTIENGESELLSCHAFT
    • D01F02/00
    • C08J5/18C08J2301/02D01F2/00D01F2/02
    • A process is disclosed for producing a cellulose shaped body by the aminoxide process. A suspension of cellulose in an aqueous tertiary aminoxide is transformed into a spinnable solution, is extruded through a spinneret and the thus obtained shaped body passes through a spinning bath. The process has the following characteristics: (a) a suspension is used containing a substance capable of reacting with cellulose and of contributing functional groups that are more nucleophilic than the cellulose hydroxy groups; and/or (b) a cellulose is used that bears functional groups that are more nucleophilic than the cellulose hydroxy groups; and/or (c) a suspension is used containing a polymer that bears functional groups that are more nucleophilic than the cellulose hydroxy groups; and/or (d) a substance is added to the spinnable solution that can react with cellulose and contribute functional groups that are more nucleophilic than the cellulose hydroxy groups; and/or (e) a polymer is added to the spinnable solution that bears functional groups that are more nucleophilic than the cellulose hydroxy groups.
    • 本发明涉及一种通过氧化胺,其中悬浮液的纤维素转化成含水叔胺氧化物成可纺溶液通过喷丝头和得到的成型体挤出通过沉淀浴中进行,其特征在于,制造纤维素成形体( 一)的悬浮液,使用通过将包含能与纤维素反应并引入这些基团比纤维素的羟基更亲核官能团的物质; 和/或(b)纤维素使用,携带其比纤维素的羟基更亲核官能团,和/或(c)中的悬浮液,使用一种新的含有携带更亲核的官能团的聚合物 如纤维素的羟基基团,和/或可纺的溶液,物质被添加,其与纤维素反应并可以引入这些基团比纤维素的羟基更亲核官能团的(D); 和可纺溶液/或(e)中,将聚合物加入携带其比纤维素的羟基更亲核官能团。
    • 5. 发明申请
    • PROCESS FOR PRODUCING CELLULOSE SHAPED BODIES
    • 方法制备纤维素状体
    • WO1995023827A1
    • 1995-09-08
    • PCT/AT1995000021
    • 1995-02-01
    • LENZING AKTIENGESELLSCHAFTKALT, WolframFIRGO, HeinrichMÄNNER, JohannMÜLLEDER, EduardMANGENG, BrunoNIGSCH, ArnoldSCHWENNINGER, FranzSCHREMPF, Christoph
    • LENZING AKTIENGESELLSCHAFT
    • C08L01/02
    • C07C291/04C08B1/003C08J3/096C08J2301/00C08L1/02D01F2/00
    • The invention relates to a process for producing cellulose shaped bodies, said process comprising the following steps: (A) dissolving cellulose in an aqueous solution of a tertiary amino oxide, in particular N-methylmorpholine-N-oxide (NMMO), to form a cellulose solution which can be shaped; (B) shaping the cellulose solution and guiding the shaped cellulose solution into an aqueous precipitation bath in which the cellulose is precipitated, whereby a shaped body and a used precipitation bath are formed; (C) regenerating the used precipitation bath, a regenerated, aqueous amino oxide solution being formed which is used in step (A) again for dissolving cellulose. The invention is characterized in that in step (A) a regenerated, aqueous amino oxide solution is used which has a pH in a range whose upper and lower limits are defined, as a function of the tertiary amino oxide concentration, by the equation pH = - 0.0015 x A + 0.2816 x A + f, A being the tertiary amino oxide concentration in the aqueous solution, expressed in weight % of the aqueous solution, and satisfying the condition: 40 %
    • 本发明涉及一种用于生产纤维素成型体的方法,该方法包括以下步骤:(A)将纤维素溶解在氧化叔胺,特别是N-甲基吗啉-N-氧化物(NMMO)的水溶液,以形成可模制的纤维素溶液; (B)模塑所述纤维素溶液和进行模制纤维素溶液成含水沉淀浴,其中,所述纤维素沉淀,由此形成的成型体和废沉淀浴; (C)再生的用过的沉淀浴,其中这是在步骤(A)中再生的水溶液的氧化胺溶液再用于纤维素的溶解被形成,其特征在于在所述步骤(A)中再生的含水氧化胺溶液中时,一 具有pH值在其上的范围内,并且其下限,这取决于叔胺氧化物的浓度,由下式pH值= - <2> + 0.2816×A + F被定义0.0015 X A,其中 A是在该水溶液中的叔胺氧化物的浓度,在该水溶液中和条件40%的质量%表示
    • 8. 发明申请
    • SPINNING DEVICE
    • 自旋电子器件
    • WO1996020300A2
    • 1996-07-04
    • PCT/AT1995000229
    • 1995-11-27
    • LENZING AKTIENGESELLSCHAFTSCHWENNINGER, FranzECKER, FriedrichFEILMAIR, WilhelmSCHREMPF, ChristophFIRGO, Heinrich
    • LENZING AKTIENGESELLSCHAFT
    • D01F02/00
    • D01D5/06D01F2/00
    • The invention relates to a spinning device for operating the wet/dry amino-oxide process with: a spinning nozzle having spinning apertures for extruding filaments; a blower device by means of which the extruded filaments can be cooled immediately after leaving the spinning apertures; a container of spinning bath liquid; a bundling unit fitted in the spinning bath liquid to bundle the extruded filaments; and an air gap defined as the distance between the spinning nozzle from the surface of the spinning bath liquid; in which: the bundling unit is at such a distance from the spinning nozzle that the angle ( alpha ) between the filaments to the perpendicular to the spinning bath liquid is 45 DEG at the most and the relation 0.1 + .0051
    • 本发明涉及一种用于通过干/湿纺丝方法进行氧化胺处理具有具有纺丝孔的喷丝头的纺丝装置具有用于挤出的长丝,淬火装置与该挤出的长丝可以被立即冷却他们已经离开纺丝孔后,与容器 纺丝浴液,其在纺丝浴液提供用于捆绑的挤出长丝捆扎元件,并且被定义为喷丝板到纺丝浴液体的表面的距离的空气间隙,其特征在于,所述捆绑元件位于喷丝头这样的距离,即 角(阿尔法),该长丝形成与垂直于纺丝浴液,最大45°的表面,并且该关系0.1 + 0.0051
    • 10. 发明申请
    • CELLULOSE FIBRE
    • 纤维素纤维
    • WO1997007267A1
    • 1997-02-27
    • PCT/AT1996000147
    • 1996-08-16
    • LENZING AKTIENGESELLSCHAFTSEIDL, SigridFIRGO, Heinrich
    • LENZING AKTIENGESELLSCHAFT
    • D01F02/00
    • D01F2/00D06M13/248D06M13/278
    • The invention relates to a process for producing cellulose fibres by the amine oxide process in which a solution of cellulose is spun in an aqueous tertiary amine oxide into fibres and the fibres are brought into contact with a cross-linking agent, in which said cross-linking agent is a sulphonium compound of formula (I) in which R1 is CH2CH2Z, alkyl, aryl, substituted alkyl or a heterocycle, Z is halogen, sulphato, thiosulphato, phosphato or hydroxy and Y is an anion, and/or a sulphonium compound of formula (II) in which OW is the radical of a polybasic acid in salt or acid form and R2 is CH2CH2OW, alkyl, aryl, substituted alkyl or a heterocycle.
    • 本发明涉及一种用于生产由氧化胺处理的纤维素纤维的方法,在该方法中纺丝纤维素在水性叔胺氧化物中的溶液到纤维和纤维与交联剂接触,并且其特征在于,作为交联剂锍的 式(I)其中R1 CH2CH2Z,烷基,芳基,取代的烷基或杂环,Z是卤素,硫酸根,硫代硫酸根,磷酸根或羟基,并且Y < - >是阴离子,和/或下式的锍化合物(II )其中,是以盐或酸形式的OW多元酸的残基,和R 2 CH2CH2OW,烷基,芳基,取代的烷基或杂环装置使用。