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39 条记录 (耗时 0.024 秒)

    Catalyst and method for the production of polytetrahydrofuran
    33.
    发明授权
    Catalyst and method for the production of polytetrahydrofuran 有权
    用于生产聚四氢呋喃的催化剂和方法

    公开(公告)号：US07041752B2

    公开(公告)日：2006-05-09

    申请号：US10481564

    申请日：2002-06-24

    申请人： Stephan Schlitter ,  Christoph Sigwart ,  Walter Dörflinger ,  Michael Hesse ,  Rolf-Hartmuth Fischer

    发明人： Stephan Schlitter ,  Christoph Sigwart ,  Walter Dörflinger ,  Michael Hesse ,  Rolf-Hartmuth Fischer

    IPC分类号： B01J29/06

    CPC分类号： B01J21/16 ,  B01J35/10 ,  B01J35/1061 ,  B01J35/1066 ,  C08G65/20 ,  C08G65/2657

    摘要： Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst particles having a volume of the individual shape of the body or particle of at least 0.05 mm3, preferably at least 0.2 mm3, in particular 1 mm3, and has at least one of the features a) and b): a) a pore radius distribution having at least one maximum in the pore radius range from 100 to 5000 Å, b) a pore volume of catalyst pores having radii of 200–3000 Å of greater than 0.05 cm3/g and/or a pore volume of pores having radii of 200–5000 Å of greater than 0.075 cm3/g and/or a pore volume of pores having radii of >200 Å of greater than 0.1 cm3/g.

    摘要翻译： 这些聚合物的聚四氢呋喃，聚四氢呋喃共聚物，二酯或单酯通过四氢呋喃在至少一种具有各种形状的成型催化剂体或催化剂颗粒的形式的存在下， 至少0.05mm 3的体或颗粒，优选至少0.2mm 3，特别是1mm 3，并且具有至少一个 的特征a）和b）：a）孔半径分布在孔半径范围内具有至少一个最大值为100至5000，b）具有大于0.05的半径的催化剂孔的孔体积为200-3000 cm 3 / g和/或具有大于0.075cm 3 / g的半径为200-5000的孔的孔体积和/或具有 > 200的半径大于0.1cm 3 / g。

    Method for producing polytetrahydrofurane having a low color indices
    34.
    发明申请
    Method for producing polytetrahydrofurane having a low color indices 有权
    具有低颜色指数的聚四氢呋喃的制备方法

    公开(公告)号：US20050182238A1

    公开(公告)日：2005-08-18

    申请号：US10515208

    申请日：2003-05-19

    申请人： Anton Meier ,  Volkmar Menger ,  Christoph Sigwart

    发明人： Anton Meier ,  Volkmar Menger ,  Christoph Sigwart

    IPC分类号： C07D307/08 ,  C07B61/00 ,  C08G65/20 ,  C08G65/30 ,  C08G65/322 ,  C08G65/04

    CPC分类号： C08G65/20 ,  C08G65/30 ,  C08G65/322 ,  C08G2650/14

    摘要： The invention provides a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, their monoesters or diesters and the monoesters or diesters of polytetrahydrofuran having a low color number in the presence of a catalyst, which comprises converting crude tetrahydrofuran which has been prepared in a manner per se into pure tetrahydrofuran by distillation, subsequently subjecting the latter to essentially complete hydrogenation and using the high-purity tetrahydrofuran obtained in this way for the polymerization directly after its preparation.

    摘要翻译： 本发明提供了一种在催化剂存在下制备聚四氢呋喃，四氢呋喃共聚物，它们的单酯或二酯以及具有低颜色数的聚四氢呋喃的单酯或二酯，其包括将以本身方式制备的粗四氢呋喃转化为 通过蒸馏进行纯四氢呋喃，随后使其后者基本上完全氢化，并使用这样获得的高纯度四氢呋喃直接在其制备之后进行聚合。

    Preparation of halogen-free, reactive polyisobutene
    37.
    发明授权
    Preparation of halogen-free, reactive polyisobutene 失效
    无卤素，反应性聚异丁烯的制备

    公开(公告)号：US06384154B1

    公开(公告)日：2002-05-07

    申请号：US09744256

    申请日：2001-01-31

    申请人： Christoph Sigwart ,  Thomas Narbeshuber ,  Eugen Gehrer ,  Rolf Fischer ,  Ulrich Steinbrenner ,  Shelue Liang

    发明人： Christoph Sigwart ,  Thomas Narbeshuber ,  Eugen Gehrer ,  Rolf Fischer ,  Ulrich Steinbrenner ,  Shelue Liang

    IPC分类号： C08F11010

    CPC分类号： C08F110/10 ,  C08F2/00 ,  C08F4/10 ,  C08F4/26 ,  C08F4/24 ,  C08F4/12 ,  C08F4/06 ,  C08F4/18 ,  C08F4/22

    摘要： A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 60 mol % and an average molecular weight Mn of 800-3000 dalton by cationic polymerization in the liquid phase of isobutene over an acidic, essentially halogen-free heterogeneous catalyst, where a) a hydrocarbon mixture of essentially C4-hydrocarbons comprising isobutene in an amount of from 10 to 80% by weight is used as the starting material and b) polymerization is carried out continuously at from −30 to 0° C. with average starting material residence times of one hour or less, where the temperature and the residence time are selected such that the isobutene conversion is less than 60% and, after separation from the resulting polyisobutene, the isobutene is either enriched in the partially converted hydrocarbon mixture and returned to the polymerization or passed to another isobutene reaction coupled with the polymerization.

    摘要翻译： 一种通过阳离子聚合在异丁烯液相中酸性，基本上不含卤素的方式制备末端双键含量大于60mol％，平均分子量Mn为800-3000道尔顿的无卤素的活性聚异丁烯的方法 非均相催化剂，其中将基本上含有10-80重量％异丁烯的C 4烃的烃混合物用作原料，和b）在-30℃至0℃下连续进行聚合，平均 起始材料停留时间为1小时或更短，其中选择温度和停留时间使得异丁烯转化率小于60％，并且在从所得聚异丁烯分离后，异丁烯富含部分转化的烃混合物， 返回聚合反应或通过与聚合偶联的另一异丁烯反应。

    Process for preparing polytetrahydrofuran
    39.
    发明授权
    Process for preparing polytetrahydrofuran 失效
    制备聚四氢呋喃的方法

    公开(公告)号：US06211401B1

    公开(公告)日：2001-04-03

    申请号：US09308320

    申请日：1999-05-19

    申请人： Karsten Eller ,  Christoph Sigwart ,  Rainer Becker ,  Klaus-Dieter Plitzko ,  Rolf Fischer ,  Frank Stein ,  Ulrich Müller ,  Michael Hesse

    发明人： Karsten Eller ,  Christoph Sigwart ,  Rainer Becker ,  Klaus-Dieter Plitzko ,  Rolf Fischer ,  Frank Stein ,  Ulrich Müller ,  Michael Hesse

    IPC分类号： C07C6724

    CPC分类号： C08G65/2693 ,  B01J23/24 ,  C08G65/20

    摘要： Polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer on a heterogeneous carrier catalyst which contains on an oxidic carrier material as active mass a catalytically active amount of at least one oxygenous molybdenum and/or tungsten compound and, when the precursor compounds of the active mass have been applied to the carrier material precursor, has been calcined at temperatures of between 500° C. and 1000° C. The catalyst used contains a promotor which comprises at least one element or a compound of an element of the 2nd, 3rd including the lanthanides, 5th, 6th, 7th, 8th or 14th group of the periodic system of elements.

    摘要翻译： 这些聚合物的四氢呋喃共聚物，二酯或单酯通过在至少一种前体和/或共聚单体存在下在非均相载体催化剂的存在下聚合四氢呋喃来制备，所述非均相载体催化剂在氧化载体材料上作为活性物质至少具有催化活性量 一种氧钼和/或钨化合物，并且当将活性物质的前体化合物已经施加到载体材料前体时，已经在500℃和1000℃之间的温度下煅烧。所使用的催化剂包含一种促进剂， 包括至少一种元素或元素的化合物，其包括元素周期性系统的镧系元素，第5，第6，第7，第8或第14组的第2,3族元素。