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71 条记录 (耗时 0.019 秒)

    CELLULOSEFASER
    64.
    发明授权
    CELLULOSEFASER 失效

    公开(公告)号：EP0796358B1

    公开(公告)日：1998-06-10

    申请号：EP96932368.2

    申请日：1996-10-03

    申请人： LENZING AKTIENGESELLSCHAFT

    发明人： FIRGO, Heinrich ,  MÜLLEDER, Eduard ,  SEIDL, Sigrid

    IPC分类号： D01F2/00 ,  C08J5/18 ,  C08L1/02

    CPC分类号： C08B15/005 ,  C08B15/10 ,  C08J5/18 ,  C08J2301/02 ,  D01F2/00

    摘要： The invention concerns a method of producing a cellulose product by the amine oxide process, a suspension of cellulose in an aqueous tertiary-amine oxide being converted into a cellulose solution and the cellulose solution shaped and passed through an aqueous regenerating bath, thus giving a product which, following optional washing, is treated with a cross-linking agent. The method is characterized in that the cellulose solution which is shaped contains a substance which activates the cross-linking agent. The method proposed enables fibres to be produced with accurately controllable fibrillation characteristics.

    摘要翻译： 本发明涉及一种通过氧化胺方法生产纤维素产品的方法，将纤维素在含水叔胺氧化物中的悬浮液转化为纤维素溶液，并将纤维素溶液成型并通过水性再生浴，从而得到产品 在任选洗涤之后，用交联剂处理。 该方法的特征在于成形的纤维素溶液含有活化交联剂的物质。 所提出的方法使得能够以精确可控的原纤化特性来生产纤维。

    CELLULOSEFASER
    65.
    发明授权
    CELLULOSEFASER 失效

    公开(公告)号：EP0783602B1

    公开(公告)日：1998-01-28

    申请号：EP96926961.2

    申请日：1996-08-16

    申请人： LENZING AKTIENGESELLSCHAFT

    发明人： SEIDL, Sigrid ,  FIRGO, Heinrich

    IPC分类号： D01F2/00 ,  D06M13/278

    CPC分类号： D01F2/00 ,  D06M13/248 ,  D06M13/278

    摘要： 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.

    CELLULOSEFASER
    67.
    发明公开
    CELLULOSEFASER 失效

    公开(公告)号：EP0783601A1

    公开(公告)日：1997-07-16

    申请号：EP96925586.0

    申请日：1996-07-30

    申请人： LENZING AKTIENGESELLSCHAFT

    发明人： FIRGO, Heinrich ,  SEIDL, Sigrid ,  BARTSCH, Peter ,  KÖLL, Berndt ,  MÜLLEDER, Eduard

    IPC分类号： C08J5 ,  C08L1 ,  D01F2 ,  D06M13 ,  D06M15

    CPC分类号： C08J5/18 ,  C08J2301/02 ,  D01F2/00 ,  D01F2/02

    摘要： 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.

    摘要翻译： 公开了一种用氨氧化物法生产纤维素成型体的方法。 将纤维素在叔氨氧化胺水溶液中的悬浮液转化成可纺丝溶液，通过喷丝头挤出，并且由此获得的成形体通过纺丝浴。 该方法具有以下特征：（a）使用含有能够与纤维素反应并且具有比纤维素羟基更亲核的贡献官能团的物质的悬浮液; 和/或（b）使用具有比纤维素羟基更亲核的官能团的纤维素; 和/或（c）使用含有具有比纤维素羟基更亲核的官能团的聚合物的悬浮液; 和/或（d）将物质加入到可与纤维素反应并且贡献比纤维素羟基更亲核的官能团的可纺用溶液中; 和/或（e）将聚合物加入可纺性溶液中，该可纺性溶液具有比纤维素羟基更亲核的官能团。

    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FORMKÖRPER
    68.
    发明授权
    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FORMKÖRPER 失效
    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHERFORMKÖRPER

    公开(公告)号：EP0683827B1

    公开(公告)日：1997-01-15

    申请号：EP95903210.3

    申请日：1994-12-09

    申请人： LENZING AKTIENGESELLSCHAFT

    发明人： EIBL, Markus ,  FIRGO, Heinrich

    IPC分类号： D01F2/00 ,  C08J5/18 ,  C08B1/00

    CPC分类号： C08J5/18 ,  C08B16/00 ,  C08J2301/02 ,  D01F2/00

    摘要： A process is disclosed for producing shaped cellulose bodies, in particular foils and fibres. A solution of cellulose in a tertiary amine oxide is extruded through a shaping device, for example a spinning nozzle, and the extruded shaped body is drawn as it is led into a aqueous regenerating bath, in which it coagulates. The coagulated shaped body is then washed with an aqueous washing liquid. The process is characterised in that the regenerating bath used for coagulating and/or the liquid used for washing the shaped body contain a dissolved surfactant.

    摘要翻译： 公开了一种用于生产成型纤维素体，特别是箔和纤维的方法。 将纤维素在叔胺氧化物中的溶液通过成形装置例如纺丝喷嘴挤出，并且当挤出成形体被引导到水性再生浴中时将其拉伸，在其中凝结。 然后用含水洗涤液洗涤凝固的成型体。 该方法的特征在于用于凝结的再生浴和/或用于清洗成形体的液体含有溶解的表面活性剂。

    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FORMKÖRPER
    69.
    发明授权
    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FORMKÖRPER 失效
    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHERFORMKÖRPER

    公开(公告)号：EP0743991B1

    公开(公告)日：1996-12-04

    申请号：EP95922340.5

    申请日：1995-06-26

    申请人： LENZING AKTIENGESELLSCHAFT

    发明人： KALT, Wolfram ,  MÄNNER, Johann ,  NIGSCH, Arnold ,  FIRGO, Heinrich ,  HAGER, Christian ,  SCHKORWAGA, Wolfgang Helmut

    IPC分类号： D01F2/00

    CPC分类号： D01F2/00

    摘要： The invention concerns a process for manufacturing cellulose moulded bodies in which a suspension of cellulose in an aqueous solution of a tertiary amine oxide is converted to a mouldable solution which is extruded using a shaping tool and introduced into a regeneration bath. The process is characterised by the fact that at least a portion of the materials in the apparatus and pipes used for transporting and processing the solution and in contact with the mouldable solution contains at least one element from the group titanium, zirconium, chromium and nickel in elemental form or in the form of compounds, to a depth of at least 0.5 νm, preferably more than 1.0 νm, and in a proportion of at least 90 %; the rest of the composition must not contain any of the elements copper, molybdenum, tungsten or cobalt. By using specific elements and compounds in this way, it is possible to prevent or limit exothermic decomposition reactions in the cellulose solution.

    摘要翻译： 本发明涉及一种制造纤维素模塑体的方法，其中将纤维素在叔胺氧化物的水溶液中的悬浮液转化为可成型溶液，其使用成型工具挤出并引入到再生浴中。 该方法的特征在于用于运输和处理溶液并与可模制溶液接触的装置和管道中的至少一部分材料含有至少一种来自钛，锆，铬和镍的元素 元素形式或化合物形式，深度至少为0.5νm，优选大于1.0νm，并且其比例至少为90％; 组合物的其余部分不得含有任何元素铜，钼，钨或钴。 通过以这种方式使用特定元素和化合物，可以防止或限制纤维素溶液中的放热分解反应。